Because of the popularity of this plant, it seems exciting new introductions are being brought out every year; all of which have a low, mounding and spreading growth habit, +-20 to 30cm tall and 50 to 60cm wide. A few include: Euphorbia 'Euphoric White' and Euphorbia 'Glitz' which are ideal for containers, hanging baskets and borders. Euphorbia 'Marginata' grows 90cm tall and has white on green foliage. Euphorbia 'Diamond Frost' has slender green leaves and white flowers. Euphorbia 'Diamond Fizz’ produces copious floral bracts, creating the illusion of double flowers. Euphorbia 'Breathless' produces stocky plants covered in a mist of white or pink tinged flowers. Euphorbia 'Breathless Blush' is the first dark-foliaged euphorbia with red-flushed leaves and pink-flushed flowers. Euphorbia 'Breathless White' is a sturdy plant and shows off masses of crystal white blooms.
Any of these euphorbias make good houseplants if you can provide good light. They are also popular with florists as filler plants in arrangements. Before using the flowers, dip the cut stems into boiling water, or hold over a flame for a few seconds, before plunging into cold water. This will help prevent sap bleed.
In the Garden:
These euphorbias make wonderful low maintenance, water-wise plants. They look good in borders and along the edges of walkways, planted singly or intermingled with large leaved plants, like coral bells and coleus. They are glorious in hanging baskets and containers, with their delicate branches spreading and spilling over edges and between larger leaved companion plants. Try tucking them into rock wall pockets and any nook and cranny in the garden, as they are the perfect companions to almost all other water-wise garden plants. The popularity of these euphorbias is increasing and they are available during the Christmas season, combined in containers with poinsettias - making the red poinsettias seem to be nesting in a bed of snow!
In areas with mild winters these plants will bloom almost all year-round, but in cold, frosty regions they are grown as a summer annuals because they are sensitive to cold. Wait until all danger of frost has passed before planting outside. In cold regions, plants in containers may be brought indoors for overwintering in a sunny window, where they may even continue to flower. These low maintenance and drought tolerant plants are sensitive to overwatering which can cause rotting. They perform best in dry to medium moisture, moderately fertile, sharply drained soils. Water regularly until the plant is acclimatised to its new home, but after that, allow the plant to dry out before watering again. These euphorbias can take some shade but do best in full sun. They bloom pretty much continually in summer and need no deadheading, but you can "pinch-prune" as required, to keep the plants more bushy. No feeding is required if they are grown in garden beds, but for container grown specimens, a little boost with a liquid fertiliser in mid-summer will do no harm and help keep them going.
These are cultivars, so seed is not available, and most cultivars are also protected by plant breeder’s rights, so propagation is prohibited. Small plants are widely available in nurseries.
Pests & Diseases:
No known serious insect or disease problems are recorded if plants are grown correctly, but root rot may occur in poorly drained or wet soils and can be fatal. Plants can be affected by mealybugs, whitefly and spider mites, especially in tight growing conditions where air circulation is not great. Also, watch out for aphids.
Euphorbia is poisonous if ingested. It also produces a milky sap that is a skin and eye irritant. The degree of irritation or toxicity varies, depending on the species. If sensitive to the toxic plant saps of euphorbias, it is best to use gloves when working with this plant.