Plate No. 60

Trailing Ice Plant

Delosperma cooperi

"A mat of magenta daisies over succulent needles"

Native to

Grasslands of the Drakensberg, South Africa

Botanical illustration of Trailing Ice Plant
Delosperma cooperi — drawn from life
History

A brief account

Introduced to European gardens in the 19th century by the plant hunter Thomas Cooper, this trailing succulent forms a dense mat of narrow, cylindrical leaves smothered in vivid magenta-pink daisy-like flowers all summer long. Unusually hardy for a succulent — it survives well below freezing when kept dry — it has naturalised across sunny banks and rockeries worldwide.

How to care for

Place Trailing Ice Plant according to its light needs: Full sun — flowering falters in shade. For watering, modest and infrequent; drought-tolerant once established. For the potting medium, use gritty, very fast-draining mix. Good drainage is essential: let surplus water escape freely and never leave the roots standing in a wet saucer. Hardy to −10°C when dry; thrives in summer heat. Check the compost before watering instead of following a rigid calendar, since light, temperature, pot size and season all affect how quickly it dries. During slower growth, reduce watering and wait longer between drinks.

How to propagate

Stem cuttings root at every node laid on damp soil. Propagation is most reliable during the plant's active growing season, when warmth and good light help new roots establish. Start with clean tools and healthy material, and keep the new plant in conditions appropriate for the parent. Where a cutting or division creates a wound, allow the surface to dry before planting unless the method calls for immediate rooting in water or moist mix. Once roots form and fresh growth appears, gradually move the young Trailing Ice Plant into its normal watering routine; excess moisture is especially risky while the root system is still small.
Cultivation

Quick tips for care & planting

Light
Full sun — flowering falters in shade.
Water
Modest and infrequent; drought-tolerant once established.
Soil
Gritty, very fast-draining mix.
Temperature
Hardy to −10°C when dry; thrives in summer heat.
Propagation
Stem cuttings root at every node laid on damp soil.