Herbs can do wonders for dogs and cats
Image by Alexa from PixabayGreens, and especially herbs are not just healthy for us humans but also for our furry friends, as they contain many valuable vitamins, minerals and secondary plant substances to boost our immune system and general wellbeing. Learn about pet-friendly herbs to plant in your garden, what they are good for treating, and practical ways to use them to enhance the health of your pets.
Plant Ranunculus for effortless winter and spring colour
Ranunculus 'Pink' Image by Ralph from PixabayNothing rivals Ranunculus for their abundance of flowers when there is little other colour in the winter and spring garden. In South Africa you can plant from April to late May, and to extend the flowering season, staggered plantings can extend to mid-June. Learn how to plant and grow these beauties with other annuals in garden beds and pots, and how to make them last longer in a vase.
Groundcovers & Small Shrubs for Firescaping
Agapanthus praecox 'White' Two types of plants are recommended for a firescaped garden: ‘fire retardant’ and ‘fire resistant’. These, together with a planting method which is designed to slow down a fire, and most importantly to create a safe zone around your home, will go a long way in protecting your home and family. It’s really quite simple!
If you don't have space for a large wind or firebreak of trees or hedging plants, a belt of suitable, evergreen, low-growing vegetation will offer protection from wildfires. A selection of small shrubs that are widely spaced, and surrounded by a mat-forming groundcover will also offer protection, and even if the shrubs do catch alight the fire shouldn't spread far. In the buffer zone it advisable to use small plants that will re-sprout after a fire, as these will help to prevent soil erosion.
Thankfully there are many indigenous and exotic plants that can be used to firescape your garden, and the plants you select will be determined by the region you live in - its climate, rainfall, and soil type. Visit your local garden centre before finalising your plant list to ensure that the plants selected are suitable for your growing region.
Although a lot of research has been done on the fire resistance of many garden plants, the science of firescaping is still in its infancy and a lot of studies still need to be done on this subject. There are thousands of fire resistant plant lists available online, some of which are compiled simply by observing which garden plants have survived fierce wildfires, and which seemed to fuel the fires.
The plant list below is by no means complete and was compiled from information available in South Africa, and worldwide, but especially those fire prone regions of Australia and California, as they grow many of the same garden plants as we do in South Africa.
The purpose of this document is to provide homeowners with guidance on ways to landscape their property with fire resistant plants to help reduce losses from wildfire damage. It contains suggestions and recommendations, and is intended to serve only as a guide. If you live in a high fire zone it is recommended that you do your own research and seek advice from garden centres and locals in your area before making your final decision.
It must be noted that any plant can burn when exposed to flames and heat, it is just that some are less likely to ignite, or may take longer to ignite. For this reason you cannot rely on plant selection alone to stop bush fires, but it makes sense to use plants that generally do not readily ignite. They may be damaged or even killed by fire, but their foliage and stems do not significantly contribute to a fire's intensity. In essence, they can create a living wall that reduces and blocks intense heat. If sufficiently watered and maintained, annuals and lawns also can be part of a fire-resistant landscape.

Tree Houseleek (Aeonium)
Combined with other succulents Aeonium are used to firescape gardens, and although they can be used in any of the garden zones, they are especially good for the buffer zone, as they are drought tolerant and their fleshy leaves will temper down a fire by catching the embers from advancing flames. Houseleeks vary in size from small specimens which grow almost flat against the ground to woody shrubs with stout basal stems reaching 1.5m, supporting multiple waxy rosettes. They come in shades of burgundy, green, and are sometimes splashed with pale gold.

Rock Rose (Echeveria elegans)
Combined with other succulents Echeveria is used to firescape gardens, and although they can be used in any of the garden zones, they are especially good for the buffer zone, as they are drought tolerant and their fleshy leaves will temper down a fire by catching the embers from advancing flames. These short stemmed, clump-forming succulents form beautiful rosettes of silver-blue spoon-shaped leaves, often with pink to rose-red margins. The rock rose looks good all year round, is virtually maintenance free, and wonderfully adaptable.

Ice Plant (Delosperma)
Combined with other succulents Delosperma is used to fire-scape gardens prone to wild fires, and although they can be used in any of the garden zones, they are especially good for the buffer zone, as they are drought tolerant and their fleshy leaves will temper down a fire by catching the embers from advancing flames. Planting a belt of Delosperma at least 50cm, but preferably 1m wide should stop or at least drastically slow down most grass fires. It forms a low mat of succulent leaves that spread quickly, making it an excellent groundcover for hot, dry slopes and sandy soils.

Hottentots Fig (Carpobrotus)
Combined with other succulents Carpobrotus is used to fire-scape gardens prone to wild fires, and although they can be used in any of the garden zones, they are especially good for the buffer zone, as they are drought tolerant and their fleshy leaves will temper down a fire by catching the embers from advancing flames. It is a vigorous succulent groundcover that is used as a pioneer plant on disturbed sites for the fast stabilization of sandy slopes. It makes a good fire-resistant barrier, and planting a belt of Carpobrotus, at least 50cm, but preferably 1m wide should stop or at least drastically slow down most grass fires.

Tapytmadeliefie (Dymondia margaretae)
Homeowners in fire prone regions are looking for attractive, drought resistant, low-maintenance groundcovers and lawn substitutes. Dymondia ticks all the boxes and is highly recommended for all the garden zones. This evergreen forms mats 2 to 7cm in height, and spreads 40 to 50cm, with growth so dense it chokes out almost all weeds. It is a great filler plant between pavers and invaluable to stabilise the soil on slopes.

Renoster Arctotis (Arctotis acaulis)
Arctotis is recommended for firescaping the buffer zone, and is perfect for difficult seaside gardens. Every year more beautiful hybrids are available in a variety of forms, from clumping to spreading or trailing. In large areas they make a glorious groundcover, and will also quickly stabilise the soil on steep banks. Allow them to spill over low retaining walls or down the sides of steps, or plant them into pots and window boxes.

Heartleaf Bergenia (Bergenia cordifolia)
Bergenia is an evergreen, fast growing herbaceous perennial which has adapted to growing in many climatic conditions around the world. It is fire resistant because its large, glossy leaves do not burn easily, and it is usually used in the garden or low resistance part of a firescapd garden, which is generlly watered more regularly. Planted about 30cm apart, it makes a useful groundcover for semi-shaded areas of the garden.

Gousblom (Gazania krebsiana)
The Commonwealth Scientific and Industrial Research Organisation (CSIRO) tested and listed the ignitability of Australian garden plants, and they listed Gazania hybrid on List 2, as exotic plants that are known to slow down a wild fire, and regularly appear on many lists as fire retardant plants. Gazania krebsiana is one of the parent plants of the many gorgeous gazania hybrids in garden centres today, and is also water-wise.

Trailing Daisy (Dimorphotheca)
These tough, water-wise daisies are listed for firescaping because their fibrous root system goes deep, enabling them to withstand veld fires, and re-sprout after a fire. They come in a wide selection of new cultivars and make lovely groundcovers. They are perfect candidates for stabilising sandy soils on embankments, and their trailing habit suits hanging baskets and pots.

Wild Daisy Bush, Harpuisbos (Euryops)
Euryops species are plentiful in southern Africa, producing their yellow blooms throughout the seasons. They are excellent pioneer species and one of the first plants to re-establish after a fire, making them good for the buffer zone to stabilise the soil after a fire has swept through. In winter rainfall regions they are water-wise. If you cut back dead plant material regularly they will not be a fire hazard.

Creeping Thyme (Thymus)
There are very few ground covers that can be walked-on, but creeping thyme is one of them, emitting its fragrance when crushed. Despite the fact that the leaves contain oils, it appears on many firescaping plants lists. This little perennial evergreen is suitable as a lawn substitute in small areas, ideal between stepping stones or near to patios and walkways, and in pebble and rock gardens.

Lilyturf (Liriope muscari)
The Commonwealth Scientific and Industrial Research Organisation (CSIRO) tested and listed the ignitability of Australian plants. They listed Liriope muscari on List 2, as plants that regularly appear on lists as fire retardant plants. This low-growing, grass-like, evergreen is low-maintenance and a great groundcover or edging plant. Its useful to plant on steep slopes to prevent soil erosion.

Star Jasmine (Trachelospermum)
The South Australian Country Fire Service lists star jasmine as fire retardant plant, and in the Knysna fires, perimeter walls covered in star jasmine were destroyed by the intense flames and heat. However, they protected the walls and homes within by being in the path of the fire and absorbing the impact of the blaze. This evergreen climber is also used as a groundcover for large areas, and sheared to maintain a height of about 40 to 60cm. It is also be grown as a shrub by regularly pinching off the tips, and as a standard plant.

Fairy Fan-flower (Scaevola aemula)
The Commonwealth Scientific and Industrial Research Organisation (CSIRO) tested and listed the ignitability of Australian plants, and they listed Scaevola on List 2, as native plants that regularly appear on many lists as fire retardant plants. Scaevola is a prostrate and spreading little evergreen which makes a wonderful groundcover and edging plant for all types of gardens. It will also trail down beautifully if planted in hanging baskets and window boxes, and looks charming spilling over low walls or cascading down flights of stairs in the garden.

Snow-in-summer (Cerastium tomentosum)
This beautiful dense, evergreen appears on several fire-wise plant lists. It is a vigorous grower, reaching 15cm in height, and spreading by runners up to 1m. It looks good all year round and will add interest and contrast to the landscape. Plant it as a groundcover, border plant, or in rock and dry wall gardens. For a thick groundcover, plant it about 40cm apart.

Bugle Flower (Ajuga reptans)
In the United States, Ajuga is recommended as a groundcover in the garden, or medium resistance zone of a firescaped garden, as these low-level groundcovers provide little fuel for fires. This perennial is excellent for moist semi-shaded areas, and even tolerates dry shade. It spreads by runners and grows fairly quickly, but is generally not invasive.

Australian Violet (Viola hederacea)
This violet is listed as an excellent fast spreading perennial groundcover for all zones of a firescaped garden. It is perfect for shady areas where grass struggles to grow, and if watered well it also takes full sun, making it perfect underneath deciduous trees which allow the full sun through in winter but are shaded inderneath in summer. It is good to stabilise the soil on banks and lovely between pavers, and alongside pathways.

Leatherleaf Fern (Rumohra adiantiformis)
Because this fern spreads by underground rhizomes it is protected from fires, and even if killed by fire, will quickly regenerate after rain. Gardeners love these ferns for their hardiness and ease of growth, as well as their versatility in the garden. Their leathery, deep green leaves blend effortlessly into so many garden themes, and make an excellent permanent ground cover for those moist and semi-shady areas.

Dwarf Spekboom (Portulacaria afra)
The spekboom is highly recommended for all zones of the firescaped garden, and especially for the buffer zone as the spekboom is also very heat and drought tolerant, and a good soil binder. There are several forms. The dwarfs make excellent groundcovers, low growing shrubs or hedges. ‘Green Carpet’ is an excellent groundcover; 'Prostrata' grows 10 to 20cm tall; 'foliis variegata' sprawls on the soil, seldom growing over 20cm tall; 'Medio-picta' is also ground hugging; and ‘Tricolor’ has a lovely pendulous habit.

Soap Aloe, Bontaalwyn (Aloe maculata)
Aloe maculate, with its bright red to orange and yellow flowers on top of a multi-branched stalk up to 1m tall is an excellent fire-retardant succulent for areas prone to wild fires, because when not in bloom it is a small stemless aloe, only about 50cm tall, and spreads via suckers, making it a perfect groundcover for the buffer zone. It is extremely common in South Africa, with a wide distribution, and an excellent coastal plant that is salt tolerant. Because it will endure heat and long periods of drought, it is also a great addition to the xeriscaped or water-wise garden.

Daylily (Hemerocallis)
Daylilies are recommended for the garden or medium resistance zone. Species can be evergreen, semi-evergreen, or dormant. Dormant varieties die back in winter; evergreen varieties will remain evergreen, except in cold regions where they will go dormant with the first frost. Semi-evergreen varieties recede partially in winter, except in warm climates. This ensures that we have species to suit many climates.

Beard-tongue (Penstemon)
Penstemon species appear consistently in firescaping plant lists for the garden or low resistant zones. The various cultivars come in many shapes and sizes, from dwarf varieties to larger plants, and are indispensable if you want colour in water-wise gardens. The smaller types are ideal in rockeries and the taller growing ones look spectacular planted at the back of the border, or next to boulders.

Wild Garlic, Isihaqa (Tulbaghia)
Tulbachia, with its succulent leaves, is recommended for firescaping in all the garden zones. It is a water-wise groundcover for large open areas on in complexes, office parks, parking lots and pavements. The two most popular species are Tulbaghia violacea and Tulbaghia simmleri, because they are proven low maintenance landscaping plants.

Bidens, Tickseed (Bidens ferulifolia)
Compact forms of bidens are recommended for the garden and low resistance zone of a firescaped garden as the drought resistant quality of these plants also helps them to endure hot, dry conditions, and if they are watered moderately will not burn easily. There is a wide variety of selections available, and many have a spreading or trailing form while others grow to be more mound shape.

Geranium (Pelargonium)
The popular Geraniums you find at most garden centres actually belong to the genus Pelargonium. These beautiful hybrid plants have been bred from our indigenous Pelargoniums and can flower all year round in ideal climatic conditions. They are fire resistant as their leaves don't burn easily, and are recommended for the garden or low resistance zone closest to the home, where they will only require moderate watering.

Carpet Geranium (Geranium incanum)
The carpet geranium appears in several firescaping lists as suitable for the buffer zone on the perimeter of the property for its ability to re-sprout after a fire and its ability to stabilise the soil. The carpet geranium grows abundantly and is often found growing together with fynbos on the slopes of hills, as well as on coastal dunes, and in damp coastal flats and seeps. It makes an excellent groundcover.
Members can click here to read more about the Carpet Geranium

Bloody Crane's-bill (Geranium sanguineum)
This geranium appears in several firescaping lists as suitable for the buffer zone on the perimeter of the property for its ability to re-sprout after a fire. Its strong rootstock helps stabilise the soil on slopes, and its long-lived and does not require a lot of care, making it a good low maintenance groundcover. The plants spread slowly, and are suitable for perennial flower borders and in small rockeries.
Members can click here to read more about Bloody Crane’s Bill

Plantain Lily (Hosta)
Hosta can be planted in the garden or low resistance zone closest to your home where they can be watered regularly. They vary greatly in growth habit, with some reaching no more than 15cm tall and others growing up to 90cm tall. They are lovely in woodland gardens and shady pebble gardens, and are effective planted singly or in large groups, and because they are so easy to divide they make a wonderful groundcover under trees.

Bearded Irises (Iris)
The bearded iris can be used in all the garden zones of a firescaped landscape if they can be watered moderately during their growing season. They do not burn readily, and if a fire does sweep through, their thick rhizomes help protect the plants and they should re-sprout again. These rhizomes will hold the soil in place after a fire, and once established they are extremely water-wise and will only require watering when the top three inches of soil dries out. The watering frequency will depend to a great extent on your environment.

Veronica (Hebe)
Veronica does not burn readily and can be planted in the garden or low resistance zone close to the home. Hybridisation has resulted in many distinctive garden plants which will thrive in various climatic conditions. Veronicas are neat, compact, low maintenance and water-wise, and today they are available from tiny miniatures only 30cm high to varieties which will grow 1.5m tall. This diversity makes them available for gardeners in most Provinces of South Africa, and a 'must have' for gardens large or small.

Yarrow (Achillea millefolium)
Common yarrow is highly rated in numerous firescaping plant lists as having low ignitability, and is used as a fire barrier, created by replacing highly flammable vegetation with species that are less likely to burn and which can help prevent ignition or slow down the spread of the fire. Garden hybrids are tough and easy to grow, and since they can take heat, drought, and poor soil, they are a natural choice for difficult areas, and perfect to stabilise sandy soils and prevent soil erosion, especially on slopes.

Butterfly Gaura (Gaura hybrids)
Gaura is recommended for firescaping because its long tap root enables it to survive drought, and to re-sprout quickly after a fire. Therefore, it is perfect for the buffer zone, and can also be utilised in the garden, or medium resistance zone. If planted in large drifts it makes a fantastic groundcover, and it’s wild, slightly unkempt look mixes well with grasses, aloes, and succulents in natural style plantings. Water well until established.

Lavender (Lavendula)
Lavender appears consistantly of fire resistant plant lists, as it offers a lot of benefits. In addition to being a slow-burning plant (as long as you keep it moist). It offers bursts of purple and green color to your landscape, plus it has a fresh fragrance. Although you should keep it moist for better fire resistance, lavender has low water needs and is a low-maintenance landscaping option. Growers continue to produce enticing new garden hybrids in all shades of purple, violet, lavender, blue, and white.

Spurflowers (Plectranthus)
Plectranthus species are recommended for the garden or medium resistance part of a firescaped garden, and also for the low resistance zone closest to the home. They are one of only a few plants that are ideally suited to grow under the shade of trees. The species vary in their growth forms, from prostrate ground covers to medium and large growing shrubs. If planted in large drifts Plectranthus looks beautiful in large beds, and the large growing varieties are often used as informal screens and hedges.

Dwarf Natal Plum, (Carissa macrocarpa)
This little num-num is a delightful dwarf variety with leathery, fire resistant leaves. It makes an excellent groundcover, growing approximately 30 to 40cm tall and 60cm wide. Like the large num-num, it is recommended to plant in regions prone to wildfires, and the sharp thorns it produces are neatly forked, making it a first class impenetrable little hedge. To grow a low hedge, plant out about 50cm apart. It’s also wonderful for the mixed shrub border and grows effortlessly in pots.

Canna Lily (Canna)
Cannas can be grown throughout South Africa, and they appear on firescaping lists from Australia and the USA. Their underground stems or rhizomes, which store starch, also protect the plant from wild fires. The thick seed coating allows canna seed to survive for a very long time, and in the wild, seeds germinate best in places burned by fire. As long as they are kept clean of dead material cannas can be used in the buffer zone, and also in the garden, or medium resistance zone.

Arum Lily, mohalalitoe (Zantedeschia)
Arum lilies are used in the garden or medium resistance garden, and can be planted closer to the home, but try to keep them well watered during the growing season. There are many species but they are all wonderful lump-forming perennials which are grown for their lush foliage and ornate blooms. Most species are deciduous but some may remain evergreen; surviving the dry season by storing water in their fleshy rhizomes, and this also enables them to survive wildfires. In the wild plants occur in areas with seasonal rainfall; growing in the grassland, savanna and fynbos biomes in full sun, less often in semi-shade.

Agapanthus, Leta-laphofu (Agapanthus)
When it comes to fire breaks, Agapanthus remains one of the most popular plants, as their foliage slows down a fire, and their underground roots and tubers survive fires and help prevent the soil from being blown or washed away when there is little other vegetation around after a fire. And as soon as the rains return they will re-sprout. In Australia, farmers have used Agapanthus as fire breaks for over one hundred years, and they have proved their resilience, sparing many farms and homes from wildfires. Agapanthus can be used in all the garden zones, but is highly recommended for the buffer zone.

Red Hot Poker, Vuurpyle (Kniphofia)
Kniphofia has many species, and a few are deciduous but most are evergreen. The herbaceous species go dormant in winter and have narrow, grass-like leaves, varying in length from 10cm to 1m long, while the evergreen species have broader, strap-shaped foliage up to 1.5m long. Because the plants derive their nourishment from rhizomes growing well below ground, they are protected from wildfires, and able to re-sprout after fire. The large clumps they form prevent soil erosion. Pokers are exceptionally pretty planted between grasses and aloes.

Cut-leaf Philodendron (Philodendron)
Philodendrons are recommended for planting roughly 3m away from the house, in the garden or medium resistance part of a firescaped garden. Today an exciting new group of Philodendron sports known as "self-headers" are available, like: Philodendron ‘Compacta’; 'Xanadu'; and 'Hope'. These do not scramble like the tree philodendron, but have a wonderful compact growth habit. They make handsome, low maintenance specimen plants for the garden, and an ideal groundcover for a dramatic impact in large landscape areas like office parks, schools, colleges etc.
Medium-sized Plants for Firescaping
Aloe arborescensThe list below includes both exotic and indigenous plants that can be used in all three zones of a firescaped garden: The fire resistant ‘Buffer Zone’ on the perimeter of the property; the ‘Garden or Medium-Resistance Zone’, and the 3m wide ‘Low Resistance Zone’ closest to the home.
If you have not read my introduction to firescaping a garden, click here to read this free article first.
Landscaping a property to be firewise requires planting in zones and is known as “firescaping”. Knowing which plants to use in the three zones of a firescaped property will go a long way in reducing damage in the face of a runaway wildfire.
Thankfully there are many indigenous and exotic plants that can be used to firescape your garden, and the plants you select will be determined by the region you live in - its climate, rainfall, and soil type. Visit your local garden centre before finalising your list to ensure that the plants selected are suitable for your growing region.
Although a lot of research has been done on the fire resistance of many garden plants the science of firescaping is still in its infancy and a lot of studies still need to be done on this subject. There are thousands of fire resistant plant lists available online, some of which are compiled simply by observing which garden plants have survived fierce wildfires, and which seemed to fuel the fires.
The plant list below is by no means complete and was compiled from information available in South Africa, and worldwide, but especially those fire prone regions of Australia and California, as they grow many of the same garden plants as we do in South Africa.
Two types of plants are recommended for a firescaped garden: ‘fire retardant’ and ‘fire resistant’. These, together with a planting method which is designed to slow down a fire, and most importantly to create a safe zone around your home, will go a long way in protecting your home and family. It’s really quite simple!
The purpose of this document is to provide homeowners with guidance on ways to landscape their property with fire resistant plants to help reduce losses from wildfire damage. It contains suggestions and recommendations, and is intended to serve only as a guide. If you live in a high fire zone it is recommended that you do your own research and seek advice from garden centres and locals in your area before making your final decision.

Crane Flower (Strelitzia reginae)
The beautiful crane flower with its large evergreen clumps of stiff grey-green leaves and startling flowers is known in places like California as a ‘fire-smart’ plant that can be used in the garden or medium resistance zone. In South Africa there are 5 different species: Strelitzia reginae, Strelitzia juncea, Strelitzia nicolai, Strelitzia alba, and Strelitzia caudata. Their bold structure is highly recommended for mass plantings at office parks and schools, as they are virtually maintenance free and need only to be kept tidy by removing the old flowers and leaves. Strelitzias are also drought tolerant, but look better if watered moderately during long dry periods.

Fence Aloe (Aloiampelos tenuior)
All aloes are recommended for firescaping a property but the fence aloe comes highly recommended. This semi-erect to rambling aloe produces several prostrate stems emerging from a central rootstock at ground level. The thin stems take root along the part of the stem lying on the ground, forming large clumps. It is well suited to rockeries, retaining walls, terraces and embankments, as well as mixed beds and borders. Plant it in massed beds to cover large areas, or encourage it to climb up fences and trellises. It is particularly good to plant in dry shade under trees, as long as the shade is light, and it is also suitable for container growth.

Indian Hawthorn (Raphiolepis)
The Commonwealth Scientific and Industrial Research Organisation (CSIRO) tested and listed the ignitability of Australian garden plants. They listed Raphiolepis on List 2, as exotic plants that regularly appear on lists as fire retardant plants. They are water-wise and grow well in pots because they remain dense and neat. They also take well to pruning and are ideal for flowering hedges and screening plants. They also work well in mixed shrub borders, and certain varieties make excellent standard plants because they are slow growing, and therefore easy to maintain, requiring clipping only once a year.

Escallonia
Escallonia shrubs also appear on many firescaping lists for the garden or medium resistance zone, and the smaller varieties are also used in the low resistance zone closest to the home. This reliable evergreen looks good all year round with its pleasantly aromatic, glossy, dark green leaves, and pretty clusters of small bell-shaped flowers. All varieties make excellent screening or hedging plants because they have a compact growth habit, grow quickly, and respond well to clipping. Vigorous breeds are excellent for large hedges or windbreaks. The hybrids vary slightly in height and spread, from +-1.5 to 3m tall.

Hydrangea (Hydrangea species)
Hydrangeas are suitable for the garden or medium resistance zone. Although some species will grow in full sun if the climate is not too hot and they are kept moist, generally they are all shade lovers. The most common species grown in South African gardens are Hydrangea macrophylla, Hydrangea arborescens, Hydrangea paniculata, Hydrangea serrata and Hydrangea quercifolia.

Japanese Laurel (Aucuba japonica)
The Japanese laurel is valued for its gorgeous foliage, and is recommended for firescaping in shady areas of the garden. It is also renowned for its robustness, facing urban pollution, salty coastal winds, and cold and dry shade head-on - and living to tell the tale! It responds well to regular watering but is remarkably drought tolerant once established.

Japanese Spindle Plant (Euonymus japonicus hybrids)
Japanese Spindle Plants appear on firescaping plant lists, and because they can be clipped into any shape they are popular topiary plants. Their bold variegated foliage and dense, upright growth habit also makes them an excellent choice for colourful hedges or informal screening. They grow well throughout the country, and although they will tolerate drought once established, they are not suited to exceptionally hot, dry and humid regions.

Coastal Rosemary, Australian Rosemary (Westringia fruticosa)
Westringia appears on several lists of fire resistant plants, and this pretty shrub is hardy, fast, and easy to grow. And because it responds well to clipping, it can be left as a dense rounded shrub, or it can be pruned for a more formal look. For this reason it makes a wonderful informal or formal screen or hedge, if planted about 60cm to 1m apart. It is also a favourite standard plant for garden beds or containers.

Cape Honeysuckle, umsilingi (Tecomaria capensis)
The Cape honeysuckle is listed in California as a good ‘fire-wise’ ornamental, and because it is also drought tolerant is recommended for xeriscaping – a landscaping method that reduces or eliminates the need for supplemental water from irrigation. Cape honeysuckle responds well to pruning and can be shaped into an attractive shrub, or formal or informal screen or hedge. In large areas it can be planted as a groundcover, and on rocky slopes it’s marvellous to control soil erosion. It can be trained as a climber by weaving it through a chain-link fence or trellis, and in small gardens it will even thrive in a pot.

Plumbago, umabophe (Plumbago auriculata)
This scrambling plant is classified as fire-resistant if planted in a defensible space like the garden or medium resistance zone. Established plants are tolerant of heat and drought but can become sparse if periodic deep watering is not provided, and if left un-pruned it will clamour up existing shrubs and trees, so bear this in mind when using plumbago in a firescaped garden, and prevent it from climbing up trees etc. It is lovely trained along a wire fence, or spilling down a bank or low wall. It makes a showy informal hedge and pruning will keep it round and bushy. It is available as a standard plant, and grows easily in pots.

Krantz Aloe (Aloe arborescens)
Owing to their moisture-retaining leaves that contain no flammable resins or oils, aloes can be utilised as gorgeous living firebreaks around the perimeter of your property, and in island beds within the garden zone for added fire resistance. The krantz aloe is an excellent fire-retardant succulent and it stands out in the landscape with its stately form, up to 2 to 3m tall, and has a spreading habit, producing a multi-headed shrub of striking green leaves armed with sharp teeth at their margins. It is easy to growin informal groups, or as an impenetrable hedging plant.

Sacred Bamboo (Nandina)
Sacred bamboo is recommended for firescaping gardens. It is one of those garden plants that looks gorgeous in all seasons, has non-invasive roots, will grow in full sun or semi-shade, and grows throughout South Africa. It can be pruned down to any height, and if planted closely together can be used as an informal screen or hedge. There are several varieties including dwarf cultivars which are excellent to use as a low maintenance groundcover for very large gardens, parks, traffic islands and similar commercial landscape applications.

New Zealand Flax (Phormium)
The Commonwealth Scientific and Industrial Research Organisation (CSIRO) tested and listed the ignitability of Australian plants, and they listed Phormium on List 2, as 'Ozbreed' plants that regularly appear on many lists as fire retardant plants. This excellent architectural plant is used to great effect in featured mass plantings in parks and office parks, schools, playgrounds, and along roadsides. The hybrids come in all sizes, and with intriguingly coloured foliage. They are all wonderful for low maintenance flower and shrub borders, in gravel or rock gardens, or at the edge of a lawn. The smaller varieties grow beautifully in pots.

Mirror Bush (Coprosma repens)
This shrub or small tree is renowned for its remarkable resistance to drought, poor soil, wind and salt spray. Also remarkable is the way fire will kill only the top growth but the plant will survive and regenerate from the roots. For this reason it appears in many firescaping plant lists. Hybrids are available in exciting colours and vary greatly in size from groundcovers to larger growing specimens which can be clipped into hedges or informal screens in the garden or medium resistance zone, and the buffer zone; to small shrubs which are perfect for the low resistance zone closest to the home. Coprosma are excellent for coastal re-vegetation planting. and windbreaks.

Common Myrtle (Myrtus communis)
The Common Myrtle appears in firescaping lists, and if left unpruned will grow into a delightfully shaped shrub. Because of its tolerance of clipping, if planted closely together it makes a wonderfully thick formal hedge and windbreak. Several smaller-growing garden varieties are available, often with lovely variegated, green and pale yellow leaves. Myrtles also grow happily in pots, making them perfect candidates for city and courtyard gardens.

Azalea & Rhododendron
These shrubs are invaluable to use in semi-shaded areas, and are listed for firescaping in the garden or medium resistance zone. The evergreen Rhododendron indicum and its many garden hybrids are the most extensively grown species throughout South Africa. They vary in size, from small shrubs that are happiest in pots, to the large and hardy ‘indica’ varieties that can make an attractive hedge. These shrubs have fibrous, non-invasive roots.

Gardenia, Katjiepeiring (Gardenia augusta)
Gardenias are recommended for the garden, or medium resistance zone of a firescaped garden, and thankfully they come in many forms. Gardenia augusta shrubs usually have a round shape, growing 1.8 to 2.5m tall, with almost an equal spread, and make a beautiful freestanding specimen shrub to plant in the mixed shrub border, or close to a patio, entrance, or garden bench. The dwarf and groundcover varieties are utterly charming and also look wonderful in pots or spilling over hanging baskets.

Glossy Abelia, Golden Abelia (Abelia x grandiflora)
Abelias are known to be fire resistant and can be planted in the buffer zone on the perimeters of large properties or country estates that are prone to veld fires. They can also be planted in the other zones of a firescaped garden. Because Abelias are available in all sizes, from petite to large, there is an ideal one for every sized garden, and because their roots are not invasive and they respond well to pruning, they make excellent formal hedging, or informal screening plants.

Boxwood, Common Box (Buxus spp)
These versatile plants appear on firescaping lists and are great for regions which experience cool to cold winters and and are fully hardy to frost, snow and low temperatures. They grow well throughout the country, both inland and at the coast; but do not like high humidity, and will struggle in extremely hot, dry regions. Because boxwoods respond well to pruning and can be cut successfully into just about any shape you desire, they are ideal for formal hedges or informal windbreaks.

Large Shrubs & Trees for Firescaping
Karee, Rooikaree, iNhlangutshane (Searsia lancea)There are some core reasons why you should plant fire retardant trees and shrubs around the perimeter or high resistance zone of your property to make your home safer if a wildfire sweeps through.
A windbreak of trees gives protection for a distance of roughly twenty five times the height of the trees, and trees have the added benefit of slowing the wind and catching embers. Fire retardant trees are also a physical barrier to the heat blast coming through, acting as a green shield in front of your home, and some trees will actually stop the fire from moving through because the amount of moisture in the leaf tissue of the plant is enough to stop the fire.
For example, a row of our indigenous Milkwood trees (Sideroxylon inerme) with their thick, leathery, evergreen leaves, and dense, low crown, can stop a fire dead in its tracks, and people with homes situated on mountains where fires frequently occur, are recommended to plant a row as both a wind and firebreak in the buffer zone.
Thankfully there are many Indigenous and exotic plants that can be used to firescape your garden, and the plants you select will be determined by the region you live in - its climate, rainfall, and soil type. Visit your local garden centre before finalising your plant list to ensure that the plants selected are suitable for your growing region.
A question most often asked is “are palm trees fire resistant?” Click here to find the answer in my free article. /are-palm-trees-fire-resistant
Although a lot of research has been done on the fire resistance of many garden plants, the science of firescaping is still in its infancy and a lot of studies still need to be done on this subject. There are thousands of fire resistant plant lists available online, some of which are compiled simply by observing which garden plants have survived fierce wildfires, and which seemed to fuel the fires.
The plant list below is by no means complete and was compiled from information available in South Africa, and worldwide, but especially those fire prone regions of Australia and California, as they grow many of the same garden plants as we do in South Africa.
The purpose of this document is to provide homeowners with guidance on ways to landscape their property with fire resistant plants to help reduce losses from wildfire damage. It contains suggestions and recommendations, and is intended to serve only as a guide. If you live in a high fire zone it is recommended that you do your own research and seek advice from garden centres and locals in your area before making your final plant selection.
The plants listed below are both exotic and indigenous to South Africa, and they include plants for all the zones of a firescaped garden.

Cheesewood (Pittosporum viridiflorum)
The cheesewood is listed for firescaping and is often described as “the perfect garden tree” because it is versatile and can be allowed to grow naturally into a beautiful low maintenance, well-shaped, medium-sized tree. It can be clipped into a hedge or screening plant, and grows well in large pots. It grows moderately and has non-invasive roots, making it safe alongside paving, and its lovely shiny, evergreen foliage does not make a mess.

Red Robin (Photinea x fraseri)
'Red Robin' is recommended as a fire retardant plant in Australia. It makes a fantastic hedging plant that can be pruned to form large formal hedges, or informal screens. By pruning out the lower branches individual shrubs can be trained into small trees. If you clip it lightly as soon as the red colour in the young growth begins to fade in spring, and continue to do so, the plant will continually produce new red growth, adding considerable interest to the garden with its contrasting foliage.

Sweet Viburnum (Viburnum)
The cool temperate species of Viburnums are deciduous, while most of the warm temperate species are evergreen, and it’s the evergreens, and especially Viburnum tinus, Viburnum tinus 'Variegatum', and the dwarf Viburnum tinus 'Compacta', that are recommended for firescaping gardens, as the leaves are covered with a waxy outer layer to retain moisture in the dry summer months. Evergreen viburnums respond well to pruning, and can be clipped into any shape, making them ideal for formal or informal hedges and screens. Sterile cultivars of Viburnum tinus are not invasive.

Camellias
There are countless hybrids derived from three particularly attractive Camellia species, the autumn flowering Camellia sasanqua, the winter-flowering Camellia japonica, and the large-flowered Camellia reticulata that finishes blooming in spring. Because of their thick moist leaves, camellias act as a good fire protection barrier, and despite their adversity to drought and intense heat, the plants will generally re-sprout after being burnt in a fire. The taller varieties are often trimmed up as small trees or trained as standards, and shrubby cultivars are used as formal hedging plants, or informal screens.

Pride of India (Lagerstroemia indica)
This little deciduous tree is listed for firescaping. It is multi-stemmed and forms a spreading, flat topped crown. A number of varieties have been bred, from tidy street trees or dense barrier hedges, to fast-growing dwarf types which only grow about 60cm tall. Because of its good drought-tolerance and its ability to grows well in spaces with limited soil, it's recommended for planting in urban and suburban areas along boulevards, in parking lots, and in small pavement cut-outs, or where compacted soil is common.

Cross-berry, Mokukutu (Grewia occidentalis)
The cross-berry is listed on many sites as fire resistant, and this branching, woody shrub or small tree is widely spread in South Africa, and can be found growing in all the provinces. The plant varies greatly in height and spread, according to the climate of the region in which it is grown. It can reach anything from 2 to 6m tall and is normally well-branched. It does not have an aggressive root system, and makes a good informal hedging or screening plant, is beautiful in the mixed shrub border, and also grows easily in containers.

Tree Fuchsia, Witolyf (Halleria lucida)
Evergreen forest trees like Halleria do not burn easily and are used as a fire retardant in the buffer zone, and the medium resistant zone. It does not have invasive roots, grows quickly, and makes a good specimen tree for the smaller garden. In large gardens and parks it looks lovely planted in groups. It's also an excellent informal screening plant or hedge and grows beautifully in large containers. In dry regions it remains a shrubby tree but in moist positions it can grow 10 to 20m.

Cape Holly, iPhuphuma (Ilex mitis)
The Cape holly is recommended for firescaping and is a truly beautiful medium-sized evergreen tree. In cultivation it is relatively fast growing, and usually remains a small to medium-sized tree that seldom grows taller than 8m, with a gracefully rounded crown of glossy, dark green leaves. It does not have an invasive root system, making it an ideal shade tree, and because it can be clipped into almost any shape, it makes an excellent hedge or windbreak. And, although it loves moisture, it will also tolerate long periods of drought.

Camphorbush, Wildekanferbos, (Tarchonanthus camphoratus)
This plant grows wild in all our provinces, varying greatly in height from 2 to 9m. It is as tough as nails and a most effective pioneer species to create shade and shelter for slower growing plants. It is also fire resistant and makes a good fire break, because it will slow down a fire, and is able to re-sprout after a fire; and its fibrous root system makes it an excellent choice to control soil erosion. Therefore the camphorbush is recommended for the buffer zone on the perimeter of a firescaped property, if a tall hedge or large windbreak is needed.

White Milkwood, Witmelkhout, aMasethole (Sideroxylon inerme)
A row of milkwood trees with their thick, leathery, evergreen leaves, and dense, low crown, can stop a fire dead in its tracks, and people with homes situated on mountains where fires frequently occur, are recommended to plant a row as both a wind and firebreak in the buffer zone. Due to its densely spreading foliage, it is a superb shade tree, and to appreciate it fully, plant it as a single specimen in a large lawn, or even in a large container on the patio. This semi-coastal tree and should be planted where a windbreak offers it some protection from salty winds.
Members can click here to read more about the White Milkwood

Karee, Rooikaree, iNhlangutshane (Searsia lancea)
Searsia lancea is an evergreen shade tree that is listed as being fire resistant, and I assume that our other karee trees like; Searsia chirindensis; Searsia lucida; and Searsia pendulina would have the same attributes. All of them are hardy park or street trees that can be planted underneath powerlines, in lawns, and near paving and tarred surfaces. Because of their dense growth habit they make a most effective windbreak and informal hedge or barrier for large properties and farms. They are also useful soil stabilisers, and increase the soil penetration of rainwater, reducing erosion and raising the ground water table.

Carob Tree (Ceratonia siliqua)
The carob tree is a most effective fire barrier as its leaves burn very poorly, and it's highly recommended for fire-wise landscaping. In its natural habitat it grows as a large evergreen shrub which may mature into a magnificent tree. It’s hard and leathery foliage is specially adapted to prevent moisture loss, and although classified as evergreen, every second year in spring it will partially drop leaves, replacing them immediately with new ones. It remains a popular ornamental shade tree for farms, large parks and gardens, and although the branches can break in high winds and storms, the trees remain useful for windbreaks.

Coral Tree (Erythrina species)
Our magnificent coral trees are recommended for firescaping. The Dwarf Coral Tree (Erythrina humeana) produces a number of stems from the ground 1.5 to 4m high, and is suitable for small gardens and pots. The Common Coral Tree (Erythrina lysistemon) often branches low down on the trunk. In arid regions it will remain small, reaching about 5m tall with an equal spread; while in moister regions it may reach 6 to 8m in height and spread. The Broad-leaved Coral Tree, (Erythrina latissima) is a medium-sized to large tree which develops several rounded heads to form a wide, spreading canopy. It can reach 9 to 12m tall, with a spread of 7 to 11m.

Citrus species
Many fruit trees are inherently fire safe, as they actively grow in summer, have thin, moist leaves that will wilt instead of burn, and are pruned annually to remove any dead material. In regions prone to fires, crews of firefighters are trained to use orchards as natural firebreaks, and they often shelter among the rows of irrigated trees to escape runaway flames. Apples pears and citrus can be fire safe, provided the trees are spaced openly, and are planted at least 5m from any buildings. Citrus can make the perfect evergreen garden tree, and even the smallest of gardens can have one because they also grow beautifully in pots.

Olive (Olea europaea)
While many trees are vulnerable to fire, olive trees have some natural fire resistance. Their thick, leathery leaves are difficult to ignite and their low, spreading branches make it hard for fire to spread up the trunk. In addition, olive trees have a high water content, which helps to keep them from drying out and becoming more flammable. Olive groves are also are excellent places to put out a fire. The name Olea europaea applies to both the wild and domestic Olive trees, and new fruiting varieties do not grow as large, making them more suited to home gardens and for planting into a large pot.

Large Num-num Amatungulu (Carissa macrocarpa)
The num-num is not only a superb looking shrub; its leathery leaves are also fire resistant, and the reason why it is recommended to plant in regions prone to wildfires. It is a slow starter, but grows quickly after the first season. If left un-pruned it will grow up to 5m tall and about 2m wide, but is usually clipped into a shrub about 2m tall. Plant it in the mixed shrub border or train it into a small tree. The long, sharp thorns it produces are neatly forked, making it a first class impenetrable hedge. To grow a hedge, plant out about 1m apart. It also grows easily in containers.

Bitter Aloe, Bitteraalwyn, iNhlaba (Aloe ferox)
Owing to their moisture-retaining leaves that contain no flammable resins or oils, aloes can be used as living firebreaks around the perimeter of your property and in island beds in the garden zone. It is adaptable to many conditions and makes a great architectural and specimen plant for the garden with its tall, single, upright, woody stem; varying in height from 1.8 to 5m in mature specimens. Mature plants carry a skirt of dried leaves, and in the wild this acts as a protection against fire.

Spekboom, iGqwanitsha (Portulacaria afra)
The spekboom is an attractive evergreen succulent which is excellent for firescaping properties. There are several forms, and the large one can be clipped into a hedge or informal screen, as it will grow to a height of about 1.5 to 2m, but can mature into a small tree 2 to 5m tall, and the dwarf forms are excellent groundcovers for all gardening zones, and especially for the buffer zone. It is also heat and drought tolerant, and a good soil binder, helping to prevent soil erosion.

Sand Olive, Sandolien (Dodonaea viscosa angustifolia)
The Commonwealth Scientific and Industrial Research Organisation (CSIRO) tested and listed the ignitability of Australian plants, and they listed Dodonea on List 1 as plants backed by scientific evidence, or overwhelming use as a fire break. It is known for tolerating a wide range of growing conditions, and is one of the first plants to establish itself on disturbed ground. This plant makes a great small to large, multi-stemmed shrub, or specimen tree, even for small gardens, and is often used as an informal screen or hedge.

Are palm trees a fire hazard?
Syagrus romanzoffiana Picture courtesy K M from flickrOne of the questions most often asked is: “Are palm trees fire resistant?” In my research, this subject seems to be contentious, with fire officials stating that they are not, and some growers saying that what makes palms so flammable is the way the dead leaves cling to the trees, and if palms are well maintained and watered regularly, they are fire resistant.
Following the deadly Woolsey Fire in Malibu, California, on November 8, 2018, that burned in Los Angeles and Ventura Counties, destroying 96,949 acres of land and 1,643 structures, killing three people, and forcing the evacuation of more than 295,000 people, the City Council of Malibu voted to approve a fire-resistant landscape ordinance that bans palm trees, restricts the use of other highly flammable trees, and seeks to create a five-foot wide non-flammable buffer zone around structures.
Among the thousands of trees that dot Southern California’s landscape, perhaps none symbolizes the region more than the towering Fan, King, and Queen Palm trees. But when not maintained properly, palm trees can create a deadly fire hazard--literally exploding into flames in a matter of minutes. According to fire officials it took 45 minutes to extinguish Queen Palms planted just feet away from homes. Fire fighters claimed that palm trees are like little rockets, and even a three-foot palm tree by a front door is the worst thing you can have in a fire.
The Woolsey fire damaged or destroyed more than 480 homes in the city of Malibu, and officials concluded that Palm fronds, Ficus hedges, and garden infrastructures like wooden decks and fences, likely contributed to the spread of fire in some residential areas that might otherwise not have burned.
It is obvious that a lot of research still has to be done on this subject, but we do know that the absence of a vascular cambium in palm trees, which instead have a scattering of vascular bundles throughout the cross section of the stem, and the location of the terminal bud under many layers of leaf bases, makes palms among the most fire resistant of trees. However, this does not make them less hazardous in the garden.
For example, the Desert Fan Palms (Washingtonia filifera) which grow In Los Angeles are a fire hazard because of their drying fronds which can catch fire in the open. These palms are also particularly prone to burning in the low, hot dessert oases of southern California, but although they may be damaged by fires, a mature tree is rarely killed by fire due to the scattering of these vascular bundles, which also provide insulation from the heat. In fact, Desert Fan Palms actually increase their seed production immediately after fires. So it seems that although many species of palms can survive wildfires, this does not necessarily make them safe to plant close to homes.
Click here to see Google images of the Desert Fan Palm
In South Africa, the Mexican Fan Palm (Washingtonia robusta) is widely planted in gardens, and because it also does not naturally drop its dead fronds but rather folds them down around the stem, forming a dense 'petticoat', it is a fire hazard. Unmaintained trees spread fires when this dead thatch catches fire and the dried fronds break free and spread the blaze to neighbouring structures, often with disastrous consequences, so in urban gardens it is necessary to remove these dead fronds.
Click here to see Google images of the Mexican Fan Palm
Other palms like the King Palm (Archontophoenix cunninghamiana) and the Cocos or Queen Palm (Syagrus romanzoffiana) are palm species that actively shed their old leaves, and if they are well maintained, their smooth trunks and clean crown shafts provide no tinder for a blaze, making them more fire-resistant. Others recommended by palm growers in California as being fire resistant are the Kentia Palm (Howea forsteriana), and the Dwarf Date Palm (Phoenix roebelenii).
Click here to see Google images of the King Palm
Members can click here to read more about the Cocos or Queen Palm
Click here to see Google images of the Kentia Palm
Members can click here to read more about the Dwarf Date Palm
Other Palms grown in South African gardens include the Mediterranean or European Fan Palm (Chamaerops humilis) which is very resilient to recurrent fires and re-sprouts very quickly from basal suckers from an underground rhizome. The re-sprouting of this species does not necessary come from new dormant buds (as in most typical re-sprouters) but from the normal apical buds which are protected from the fire by the leaf bases in the stem. The first re-sprouting leaves often show a typical burned-brown-green pattern, and this is because is because in palms, as in all Monocotyledons, the meristem is at the base of the leaves and therefore more protected, so even burned leaves can still grow from the base, but the upper part of the leaf will be partly burnt. This palm also often flowers very quickly after fire.
Members can click here to read more about the Mediterranean or European Fan Palm
The Canary Island Palm (Phoenix Canariensis) will burn in a fire but can survive, and often grows even stronger after having been blackened by fire. In October of 2013, after more than 1,200 Canary Island Date Palms were damaged by a devastating fire on La Gomera Island in the Canary Islands, a cleanup was carried out which involved climbing up the sooty trunks to reach the sad-looking crowns and remove the dead fronds with saws and special knives. This is dangerous work because of the great height these palms can attain, and also because of the hard needle-sharp spikes at the ends of the fronds. The clean-up was part of fire prevention measures all over the island of La Gomera, and included the removal of thousands of tons of dead and partially burnt vegetation, as well as any other material that could easily catch alight.
Members can click here to read more about the Canary Island Palm
The Bismarck Palm (Bismarckia nobilis) is endemic to Madagascar, and regenerates quickly on land which has been cleared for agriculture by burning, it is one of the most conspicuous features of this arid region.
Members can click here to read more about the Bismark Palm
The Windmill Palm, Chinese Windmill Palm, Chusan Palm (Trachycarpus fortunei) is listed as a high fire hazard because it develops a rather slender single stem covered with a loose mat of coarse brown, flammable fibre, and if the tree is not correctly maintained, the dead leaves hang down from the top, forming a brown skirt that will catch flying embers and quickly ignite.
Members can click here to read more about the Windmill Palm
In conclusion, while palm trees are fire resistant, it is important to note that they are not fireproof. If you already have palm trees in the garden and do not want to remove them, it is important to prune the trees regularly and to keep them well-watered during periods of drought to help prevent them from becoming dried out and more susceptible to fire.
Introduction to Firescaping in Zones
Image by Matthias Fischer from PixabayDid you know that Africa is known as “the fire continent” as more of Africa burns each year than any other continent on Earth? Being “fire-wise” should therefore be a priority, and is vital to protect your home and suburb against wildfires. In this article you will learn how to easily implement precautionary steps which will drastically reduce the threat that wildfires pose to your family and your home. Read more below about firescaping your garden.
If you select the correct plants, you can still create a beautiful, but more importantly, fire resistant garden. Keep posted, as I will soon be publishing lists of suitable groundcovers, shrubs and trees recommended for firescaping.
South African’s are well aware of the threat of wildfires, which often result in considerable financial loss and even human fatalities. In September 2023 it was reported that due to the recent wildfires in many parts of South Africa, at least 1.2 million hectares of land was affected by ongoing fires in the provinces, with the Free State, North West and Limpopo being among the hardest hit. Nearly 200 animals had to be euthanized in the aftermath, and it was estimated that farmers lost at least 1 billion Rand’s worth in crops and livestock during August and September.
The 2021 Table Mountain fire, also known as the Rhodes Memorial fire was a major fire that started in and around Table Mountain National Park, and the neighbourhoods of Newlands, Rosebank, Mowbray and Rondebosch. It was reportedly started by a vagrant and quickly spread through old pine trees and debris, generating its own wind while spreading towards the university campus and city. Students at the University of Cape Town were evacuated and official warnings were issued for hikers in the Newlands Forest area of Table Mountain National Park to also evacuate. The blaze destroyed the restaurant at Rhodes Memorial, and the M3 road was also closed, due to the fire jumping the road and spreading to the other side.
Wildfires swept through many parts of the Garden Route in June of 2017, and Knysna and its surrounding areas were absolutely devastated, with thousands of people having to be evacuated. The aftermath revealed that over 1,000 structures were totally destroyed, 500 houses were damaged, and because critical infrastructure like power lines were either damaged or destroyed, local businesses were unable to operate. In 2018, it is estimated that the George/Outeniqua fire destroyed 90,000 hectares, an area four times the size of the 2017 Knysna fires which saw 22,000 hectares razed.
Fire is one of the oldest issues in the ecology of Africa’s vegetation, and in the days before human populations reached their present high levels, fires were started mainly by lightning. However, today most fires are started by humans, either accidentally or deliberately. Something as simple as a negligent driver throwing the butt of a cigarette on the side of the road can result in a wildfire.
Aspects of the vital role natural wildfires play in our ecosystems remains contentious, and its use in ecosystem management also continues to be debated. Ecologists understand that fires are a natural and integral part of the ecology of most African ecosystems, and that many plant species are ‘fire-dependent’, relying on fires to complete their life cycles, and would become extinct without them.
Many plants in fire-prone areas are able to sprout after fire, either from below-ground roots or bulbs, or from epicormic buds which lie dormant and are protected underneath thick bark. Some plants like Proteas hold their annual production of seeds in ‘fire-proof’ flowers, and when the plants are killed in fires, the seeds are released and germinate when the next rains arrive.
For such species fires are essential, and without fire the seeds cannot germinate, as the seeds are stimulated to germinate by the chemical cocktails contained in smoke. Some plants may have even evolved properties that make them more prone to burning by producing lots of dead material, and highly flammable oil content in their leaves.
Africa has the largest area of savannas in the world, and 6 to 8 million years ago, fire due to lightning strikes was a significant factor determining the evolution of these grasslands, because fire promotes the growth of grasses, and also prevents the development of dense woodlands and forests. In savannas, the balance between grasses and trees is maintained by fire, and it has been clearly demonstrated that the exclusion of fires for long periods leads to the elimination of grasses and an increasing dominance of trees and shrubs. In simple terms - without fire our African ecosystems would look totally different.
In South Africa fires are a natural feature of many of our ecosystems, and in the dry season they occur regularly in fynbos shrub-lands, grasslands, and savannas across the country. Such vegetation does not normally burn in the wet season when the plants are green, but in the dry season all that is needed is a source of ignition for devastating fires to occur. Lightning provides ample sources of ignition, as do humans, so frequent veld fires are inevitable.
Now more than ever, South Africans need to build a culture of fire-wise communities. ‘Building Fire-Wise Communities’ is a concept originally developed in the United States, and has since been adapted and implemented in South Africa. The Fire-Wise approach is not a solo mission for home owners, but rather emphasises the responsibility communities have in designing a safe community. It also promotes effective emergency responses to fires, and emphasises the responsibility individual home owners have regarding safer home construction and design, as well as fire-wise landscaping and maintenance.
People that live where fires are a real danger can do many things to protect their property, and although firescaping won't guarantee the safety of your property, it will certainly decrease the risk.
Firescaping involves landscaping in ways that will reduce the probability of a fire catching and spreading through an area. It is vital to have a survivable space around your infrastructure, and creating this safe space involves modifying your property’s layout, hard landscaping materials and plantings, to reduce the risk of your home catching alight during a wildfire.
Fires always happen when three necessary elements come together: sufficient fuel of the right kind; warm, dry weather, and a source of ignition.
The first step is to assess the vulnerability of your property, as well as that of your neighbours. If it is close to a forest or thickets of vegetation, it is at risk, and if it is sited at the top of a hill, or where it is subjected to strong winds, this will make it even more vulnerable. The amount of fuel, the strength and direction of the wind, and the lie of the land, make a huge difference to the intensity of fire, and what it burns. On the whole, the steeper the slope the faster a fire moves so houses on steeper land need wider buffer zones.
Even if you were to remove all vegetation from around your property and pave or plant lawn in the entire area, your home could still catch fire from burning embers carried on the wind. A windbreak of trees or a belt of green vegetation that is not highly flammable is more effective at stopping or slowing down a fire.
A simple test to gauge the fire vulnerability of the trees and shrubs in your garden is to build a small fire and throw a small sample of both green and dried foliage from each tree and shrub into the fire to see how much it flares up. Consider removing plants with foliage which flares fiercely.
In areas prone to wildfires you should never use flammable materials in the garden like wooden fencing and trellising. Steel trellising and brick and stone walls are better as they help slow down a fire. Also, never apply organic mulches like bark chips unless they can be kept moist, as dry mulch is a fire hazard. Rather use gravel, pebbles, concrete pavers, and succulent groundcovers.
Make sure that you have access to water to put out spot fires or wet your roof. Keep gutters free of debris, and install a sprinkler system that will saturate your roof, house and garden if a fire threatens your property, and check it regularly to ensure that it works properly. If you can, also link your sprinkler system to an alternative water source like a swimming pool or large water tank, and purchase a strong diesel pump to ensure you will be covered should the electricity be off at that critical time or the municipal water pressure is too low.
A fire-fighting vehicle has to have easy access to your property and home to effectively fight a fire, so keep certain pathways or stretches of lawn open and free of anything that could block access to driveways, gates, or pathways.
Should the power go down, have some means of communicating with each other in the community, and if you have a battery operated radio you can monitor the news. Keep a fire-fighting kit on hand, and if a fire does close in, shut all windows and doors, and if you have to escape, do so shielding yourself with a wet blanket.
Garden in zones
There is no such thing as a fire proof plant, but there are ‘fire retardant’ and ‘fire resistant’ plants, and with the ‘Building Fire-Wise Communities’ concept developed in the United States, they recommend dividing the garden into planting zones. This planting method is designed to slow down a fire, and most importantly to create a safe zone around your home. And it’s really quite simple!
The garden is divided into three planting zones:
A fire resistant “Buffer Zone” on the perimeter of the property.
The “Garden or Medium-Resistance Zone”.
A 3m wide “Low Resistance Zone” which is closest to the home.
The perimeter or buffer zone
The first but most important step in firescaping your garden is to create a fire resistant buffer zone on the perimeter of your property, because this is the furthest away from the home, and your first line of defence. If your property borders a forest or thickets of vegetation, is sited at the top of a hill, or is subjected to strong winds, do regular inspections of the perimeter and remove all dead or dying plant material which could fuel a fire. If this space encroaches into your neighbours’ properties, then it makes sense to work together to create a joint survivable space and hazard reduction plan.
Cut down or spray all alien, invasive plants, including Australian Acacias like Blackwood’s, Port Jackson and Rooikrans; as well as Pines, Cypresses and Eucalyptus/Gum Trees, which contain high levels of resin or oils in their leaves and will just explode into flames in a fire.
Click on highlighted text to see Google Images of the plants mentioned.
Our indigenous thorn trees (Vachellia, previously called Acacias) ooze thick sap that dries in globs, making them highly flammable and also likely to explode in a fire. Most plants with fine or small, thin leaves, also often accumulate lots of dead leaves or wood inside the plant which will catch alight quite easily, so remove Australian Bottlebrushes, Melaleucas and Conifers, and especially those growing in the buffer zone, as these plants burn even hotter and fiercer than our indigenous fynbos, which also catches alight quite easily, especially after weeks and weeks of no rain and drying winds.
For large properties or farms, fire breaks are made by utilising sand or gravel roads, or by conventional burning of breaks. If you live in the city or suburbs your buffer zone will be determined by the size of your property, but to be effective should be at least 5m away from the house.
On large properties fire buffer zones are sometimes cleared and planted with sweeping lawns and sprinkler systems, but in our hot and dry climate, during times of drought when large expanses of lawn cannot be watered, this could turn into a fire hazard. Therefore, although there is really no such thing as a totally fire resistant plant, many people opt to plant them exclusively on the perimeters of their property.
There are some core reasons why you should plant fire retardant trees around our home to make it safer. A windbreak of trees gives protection for a distance of roughly twenty five times the height of the trees, and trees have the added benefit of slowing the wind and catching embers. Fire retardant trees are also a physical barrier to the heat blast coming through, acting as a green shield in front of your home, and some trees will actually stop the fire from moving through because the amount of moisture in the leaf tissue of the plant is enough to stop the fire.
For example, a row of our indigenous Milkwood trees (Sideroxylon inerme) with their thick, leathery, evergreen leaves, and dense, low crown, can stop a fire dead in its tracks, and people with homes situated on mountains where fires frequently occur, are recommended to plant a row as both a fire and windbreak in the buffer zone.
Members can click here to read more about Sideroxylon inerme
A great plant for smaller properties is the Sand Olive, and studies done by the Commonwealth Scientific and Industrial Research Organisation (CSIRO), who tested and listed the ignitability of Australian plants, listed the Sand Olive, (Dodonea) on List 1, as ‘plants backed by scientific evidence for overwhelming use as a fire break’.
Members can click here to read more about the Sand Olive
Unless you are planting a hedge or windbreak, its best to keep the buffer zone more open. Fire-resistant trees must be widely spaced so that regular maintenance can easily be carried out, and to ensure easy access in the event of a fire. As the trees grow, trim up the lower branches to reduce flammable material close to the ground, and don’t plant shrubs close their stems as these can create a ‘fire-ladder’ effect. Remove dead leaf litter under and around trees and hedges regularly.
If you plant a hedge, try to use plants that will re-sprout after a fire, and which do not accumulate a large quantity of dead material inside the plant. For this reason, Proteas would not be a good hedging or screening plant for the buffer zone.
Good hedging or screening plants for the perimeter buffer zone, which will re-sprout if burnt and appear on various firescaping lists, include our indigenous Karee trees: Rooikaree, Mosilabele (Searsia lancea); Glossy Currant, Blinktaaibos, inHlokoshiyane (Searsia lucida); White Karee, Witkaree, mosilabele, Garas (Searsia pendulina); and (Searsia chirindensis). These trees are also useful soil stabilisers, and increase the soil penetration of rainwater, reducing erosion and raising the ground water table.
Members can click here to read more about Searsia lancea
Members can click here to read more about Searsia lucida
Members can click here to read more about Searsia pendulina
Members can click here to read more about Searsia chirindensis
If you don't have space for a windbreak of trees, a belt of suitable, evergreen, low-growing vegetation will also offer protection. Many of the plants used in this zone are succulent and do not need copious amounts of water, but to keep them at their fire-resistant peak, try to water during long dry spells.
A selection of succulent groundcovers and other fleshy-leaved groundcovers will temper down a fire by catching the embers from advancing flames. There are many indigenous succulents you could use like: Ice Plant (Delosperma): Hottentots Fig, Kaapsevy (Carpobrotus); Tree Houseleek (Aeonium); and Rock Rose (Echeveria elegans), and although they can be used in any of the garden zones, they are especially good for the buffer zone as these drought tolerant plants are also used as part of xeriscaping – a landscaping method that reduces or eliminates the need for supplemental water from irrigation.
Members can click here to read more about Carpobrotus
Members can click here to read more about Delosperma
Members can click here to read more about Aeonium
Members can click here to read more about Echeveria
Many exotic garden plants are also known to be fire resistant, and Common yarrow is highly rated in numerous firescaping plant lists as having low ignitability, and is used as a fire barrier, created by replacing highly flammable vegetation with species that are less likely to burn and which can help prevent ignition or slow down the spread of the fire.
Members can click here to read more about Achillea
The Commonwealth Scientific and Industrial Research Organisation (CSIRO) tested and listed the ignitability of Australian plants, and they listed Fairy Fan-flower (Scaevola aemula) on List 2, as Australian plants that regularly appear on many lists as fire retardant plants. This prostrate and spreading little evergreen makes a wonderful groundcover and edging plant for all types of gardens.
Members can click here to read more about Scaevola
Planting a selection of evergreen shrubs like aloes for their fleshy, moisture-retaining leaves, will slow down a fire. The African Aloe, Soap Aloe, Bontaalwyn (Aloe maculata) is an excellent fire-retardant succulent for areas prone to wild fires, and because it spreads via suckers is a good choice for a groundcover in the buffer zone. The Spekboom, isiDondwane (Portulacaria afra) is also highly recommended for firescaping. The taller forms make a wonderful hedge or windbreak, and the dwarf forms make excellent groundcovers or low growing shrubs or hedges.
Members can click here to read more about Aloe maculata
Members can click here to read more about the Spekboom
Planting a belt of these fire resistant plants in the buffer zone, at least 50cm but preferably 1m or more wide, should stop or at least drastically slow down most grass fires. Another plus is that because they are drought resistant, they are useful to use for holiday houses that are left unattended and un-watered for long periods.
Even if your property hasn’t experienced a fire yet it advisable to use small plants that will re-sprout after a fire in the buffer zone. And when it comes to fire breaks, Agapanthus remains one of the most popular plants, as their foliage slows down a fire, and their underground roots and tubers survive fires and help prevent the soil from being blown or washed away when there is little other vegetation around after a fire. And as soon as the rains return they will re-sprout. In Australia, farmers have used Agapanthus as fire breaks for over one hundred years, and they have proved their resilience, sparing many farms and homes from wildfires. Wild Garlic (Tulbaghia) is also highly recommended for the buffer zone.
Members can click here to read more about Agapanthus
Members can click here to read more about Tulbaghia
If space allows it is most beneficial to leave and ‘island bed’ between the buffer zone and the garden or medium resistance zone. This part is often a stretch of lawn but could also be a gravel or flagstone pathway. This free-standing strip in the garden acts as a mini firebreak between the buffer zone and the garden zone.
The garden or medium resistance zone
The garden or medium resistance zone lies between the buffer zone and the inner band, or low resistance zone closest to the home. It is possible to plant a garden here using fire-resistant trees, tall and short shrubs, and groundcovers. The trick is to space your bigger plants more widely apart so that they don’t touch once the plant has matured, as this prevents a dense thicket of shrubbery that could support a very hot fire.
Only non-flammable hard-landscaping materials should be used, like flagstone walkways, brick patios, stone retaining walls, gravel and other inorganic mulches. Avoid timber decking, wooden pergolas and archways, and organic mulches like bark chips.
In this zone more shrubs and trees with fleshy, moisture-retaining leaves are used, and if space permits, these are also planted in ‘islands beds’ which are surrounded by lawn or non-flammable pathways. These ‘island beds’ will slow down the fire further and help to shield your home from the intense heat that can shatter windows. Ideally, island beds should be three to five meters apart.
Although Fynbos species can burn fiercely, they can be used in this zone if they are planted in ‘island beds’, but remember to space tall and short shrubs in a way that, once the plants are mature, they will not form a dense thicket of foliage which can provide fuel for a very hot fire.
In the garden, or medium resistance zone trees are usually planted individually in ‘island beds’ and shrubs are not planted close to the trunks, as these can act as ‘fire-ladders’, helping flames climb from the ground up into the canopy. Remove the lower branches of trees up to about shoulder height, or twice the height of surrounding vegetation, and to prevent flames from spreading along the ground, always keep the areas under trees and shrubs clear of all dead and decaying wood, fallen and dead branches, and large clumps of dry grasses.
The low resistance zone
This zone is closest to the home and should ideally be a 3m belt around the house. Excessive vegetation adds fuel to a flame, so the plants nearest your home should be widely spaced and low-growing. Avoid large masses. Instead, plant in small clusters using a wide variety of species.
Keep this area free from dry plant litter, and trees or large shrubs that are flammable, and especially those with branches that touch or overhang your home. Trees, climbers, and medium or large shrubs planted directly up against buildings can act as ‘ladders’ for a fire. If you simply must grow climbers on the house, make sure they are supported by metal trellises or pergolas, and clean out any dead twigs and leaves regularly.
Only non-flammable hard-landscaping materials should be used, like flagstone walkways, brick patios, stone retaining walls, gravel and other inorganic mulches. Avoid timber decking, wooden pergolas and archways, and organic mulches. However, if you already have, or want wooden decking, use fire-resistant wood or wood treated with a fire retardant for decking, and keep the areas underneath clear of vegetation. It is also important to remove debris regularly from gutters, and to keep your garden free of dead plant material.
This zone of the garden closest to the home should consist of well-irrigated, fire resistant small shrubs and low-growing ground-covers, and if you have a lawn, try to keep it well-watered, and mow regularly to prevent a build of dry grass called “thatch”.
There are many popular garden plants that are suitable for planting in this zone, like roses and flowering perennials, herb and vegetables.
Try to water this garden zone regularly during the dry season to keep the moisture content of the plants high. Make sure that you have access to water to put out spot fires or wet your roof. Keep gutters free of debris, and install a sprinkler system that will saturate your roof, house and garden if a fire threatens your property.
Most importantly, remember that a fire-fighting vehicle has to have easy access to your property and home to effectively fight a fire, so keep certain pathways or stretches of lawn open and free of anything that could block access to driveways, gates, or pathways.
Although a lot of research has been done on the fire resistance of many garden plants, the science of firescaping is still in its infancy and a lot of studies still need to be done on this subject. There are thousands of fire resistant plant lists available online, some of which are compiled simply by observing which garden plants have survived fierce wildfires, and which seemed to fuel the fires.
The plants mentioned in this article come from information available in South Africa, and worldwide, but especially from fire prone regions of Australia and California, as they grow many of the same garden plants as we do in South Africa.
The purpose of this article is to provide homeowners with guidance on ways to landscape their property with fire resistant plants to help reduce losses from wildfire damage. It contains suggestions and recommendations, and is intended to serve only as a guide. If you live in a high fire zone it is recommended that you do your own research and seek advice from garden centres and locals in your area before making your final decision.
Keep posted, as I will soon be publishing lists of suitable groundcovers, shrubs and trees recommended for firescaping.
Colour pallettes for Iceland Poppies
Iceland Poppy Image by Couleur from PixabayMay is the perfect time to plant Iceland Poppy seedlings in South Africa, and these easy to grow old-time favourites will brighten up even the coldest winter day. They combine beautifully with most winter flowering annuals and make a fantastic backdrop for spring flowering bulbs. Learn which colours and companion plants will show off your Iceland Poppies the best.
These popular cut-flowers are available in bright and pastel shades of yellow, orange and white, with some selections like ‘Champagne Bubbles’ also including pink and scarlet-red blooms. Best of all - the more you pick them, the more they will bloom, so cut them regularly to bring indoors.
If Iceland poppies are planted early in the season they will soon provide winter blooms that will keep on appearing right through to late spring. Iceland poppies combine well with other winter and spring flowering annuals and bulbs, and because they also grow well in pots, even a tiny garden or sunny balcony can provide some winter and spring cheer.
Dianthus 'Blueberry Delight' Picture courtesy Nu-leaf NurseryOnce planted winter flowering annuals like poppies will require little maintenance, and all you have to do is to water and feed them occasionally. Insect pests also seem to magically disappear when the cold weather sets in and you will not have to worry about spraying your winter garden.
It is important to remember that seasonal colour is only used to embellish the framework of existing ornamental plants like perennials, shrubs, roses and ornamental trees, in a manner in which the various plants support each other visually and make a rich patchwork of texture and colour.
When deciding which flowering plants go together colour is obviously the first choice but it doesn’t end there, and it’s certainly an art to combine annuals effectively to create a colourful yet harmonious garden. Not only do you need to consider plants with contrasting and complementary colours, but also the
growth requirements of your plant selection. Iceland poppies love full sun, good fertile soil which drains well, regular watering, and the occasional feeding. Therefore their companions should also enjoy the same growing conditions.
Click here to read more about growing Iceland poppies
Viola 'Sorbet' Citrus Mix Picture courtesy Ball StraathofWhat colour combinations work best with Iceland poppies?
How to use Analogous Colours in the landscape?
Analogous colour involves working with two or three colours that are next to one another on the wheel, like orange, yellow and red. Your Iceland poppy selection will generally have predominantly yellow and orange flowers. Orange is a warm and vibrant colour and yellow is also warm, cheerful, and friendly, so they are naturally good companions for each other.
Creating a colourful border can be super easy when you plant different colours of the same species together, and Iceland poppies are perfect to implement this type of colour scheme using only two colours. One of the best ways to use the warm colours of Iceland poppies is to plant them in broad brushstrokes, and to repeat them in the garden, interspersed with their annual companions. This will create both drama and interest, and the recurring colour will draw the eye through the landscape and give it a cohesive feel.
In an analogous colour scheme usually one of the three colours predominates, but with Iceland poppies the orange and yellow will dominate equally. Adding small quantities of red flowers in the spaces between the drifts of poppies will just add that third element and make the colours ‘pop’ even more.
How to attract attention in the garden with warm colours?
Bold colours stand on their own, so shades of orange, yellow and red are perfect for drawing attention to your favourite landscape element, be it your front door, on the patio, or next to a brightly painted garden bench, these colours demand attention
How to add contrast to the warm colours of Iceland poppies?
Petunia 'Daddy Blue' Picture courtesy Ball Straathof
If you use mainly warm colours in the spectrum from red through orange to yellow, you should add some cool colours to tone down the palette. Warm and cool colours always work well side by side, and warm colours like yellow, orange, and red tend to come forward or feel closer to you in the landscape, and cool colours like green, blue and purple, and variations of these colours, tend to go away from you, or feel distant to you and recede in a garden. If done well, contrast will add a whole new dimension and depth to the garden.
Both yellow and white are well matched in value, and although both vie for attention in the landscape, they will not detract from each other. And, although Iceland poppy selections usually include some white blooms, it would be good to add more white flowers to the mix.
How to use complimentary colours with yellow and orange Iceland poppies?
Complementary colours that are opposite each other on the colour wheel always works well together, and for both yellow and orange Iceland poppies blue is the best complementary colour as these two opposing hues are as different as night and day. Sadly there just aren’t many flowers that are true-blue in colour, so gardeners use colours that are adjacent to blue on the colour wheel like purple and violet to provide contrast for orange and yellow.
Thankfully, pansies and violas are perfect companions for Iceland poppies, and because they come in so many gorgeous shades of purple and violet, they are the obvious choice for adding contrast to your beds. Yellow, orange and white pansies and violas can also be planted between the poppies to bring the colour down to ground level for an even more striking display.
Which flowering annuals best compliment plantings of Iceland poppies?
Adding interest to your flower border can be as simple as mixing flowers with different shapes together, and Dianthus, Petunias, Lobelias, Alyssum, Pansies and Violas, will all serve this purpose and also provide wonderful colour contrast.
Alyssum
Alyssum is a compact, low-growing plant that is available in lovely in shades of pink, rose, purple, mauve, white and yellow.
Members can click here to read more about growing alyssum
Pansies & Violas
Pansies and violas are compact and come in an astounding range of colours, including yellow, orange and white, as well as the purples and violet shades that contrast so beautifully with Iceland poppies,
Members can click here to read more about growing pansies and violas.
Lobelias
Lobelias produce a profusion of tiny flowers in shades of blue, lilac, purple, pink, carmine and white, and some varieties have bright green leaves while others have bronzy foliage which contrasts well with Iceland poppies.
Members can click here to read more about growing lobelia
Petunias
Petunias also come in many shades of purple, lilac, blue and white, making them perfect to pair with Iceland poppies.
Members can click here to read more about growing petunias.
Dianthus
Dianthus remain firm favourites with gardeners and they are available in amazing shades, including mauve, purple and white, to enhance the colours of your poppies.
Great Companions for Iceland Poppies
Iceland Poppy Image by Couleur from PixabayMay is the perfect time to plant Iceland Poppy seedlings in South Africa, and these easy to grow old-time favourites will brighten up even the coldest winter day. They combine beautifully with most winter flowering annuals and make a fantastic backdrop for spring flowering bulbs. Learn which colours and companion plants will show off your Iceland Poppies the best.
Spinach varieties to grow as microgreens, baby leaf, or mature crops
Spinach grows well in window boxes. Picture courtesy looli from flickrSpinach is a rewarding cool season crop that can be grown in spaces large or small to provide healthy organic greens all season long. South African gardeners have a good selection to choose from, including those that are slower to bolt in warm weather. Learn more about these spinach varieties and the various methods of growing them.