Hardy Yellow Ice Plant
Scientific Name: Delosperma nubigenum (Schlechter) L. Bolus
Synonym: Mesembryanthemum nubigenum
Family: Aizoaceae
Delosperma nubigenum at the Huntington Gardens in early July
Sunset®: 1-24,28-31
USDA: 5-10
Frost Tolerance: Hardy down to -15 °F (-25°C)
Sun Exposure: Full sun
Origin: South Africa (Orange Free State)
Growth Habits: Evergreen, prostrate succulent subshrub; elliptic to linear leaves, 0.5 to 0.7 inch long (13-18 mm)
Watering Needs: Low water use, needs good drainage and dry conditions in winter
Delosperma nubigenum is the most cold resistant of the Ice Plants, it is slightly more resistant than Delosperma cooperi, but has a shorter blooming season.
Blooming Habits:
Golden-yellow to orange-red flowers, up to 1.5 inches wide (3.5 cm). They are produced for about a month in late spring.
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