Delosperma nubigenum (Schltr.) L. Bolus
Ice Plant, Hardy Ice Plant, Hardy Yellow Ice Plant, Yellow Ice Plant
Delosperma nubigenum is a mat-forming succulent with fleshy green leaves and yellow daisy-like flowers. It grows up to 2 inches (5 cm) tall with a spread of 20 inches (50 cm). Leaves are thick, closely packed, oblong or linear, and up to 1.2 inches (3 cm) long. They turn bronze in fall and winter. Flowers are up to 0.8 inches (2 cm) in diameter and appear in late spring.
USDA hardiness zone 5a to 10b: from −20 °F (−28.9 °C) to 40 °F (+4.4 °C).
How to Grow and Care
Delosperma plants grow in USDA plant hardiness zones 5-9 and will bloom for most of the summer and fall. Their foliage is mostly evergreen, and because of this, they make a great year-round ground cover. While the plant is evergreen, it will often have some dieback of foliage in the winter.
Delospermas prefer full sun but can tolerate some light shade in the garden. Because Delospermas are succulents, they do not tolerate wet soil, though they do well in poor soils. Wet soil, especially during the winter months, is likely to kill the plants. In areas where the soil stays consistently dry, this plant can become invasive, so it is best to consider this when planting it.
The Ice Plant can be propagated by division, cuttings, or seeds. If propagating by division, it is best to divide the plants in the spring. Cuttings can be taken anytime in the spring, summer, or fall. When grown by seeds, scatter the seeds on the soil's surface and do not cover them, as they need light to germinate.
See more at How to Grow and Care for Delosperma.
This species is native to South Africa.
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