A shrub or small gnarled tree from the mountains around Makhanda in South Africa, grown for its large leathery leaves and showy white or purplish flower heads. It is a rare, threatened species, so it is mostly found in botanical collections rather than the nursery trade.
Family
Asteraceae (Daisy family)
Grows as
Tree, Shrub
Light
Full sun, Part shade
Water
Water sparingly, letting the soil dry out between waterings, as it is adapted to dry mountain slopes.
Soil
Free-draining, sandy or gritty soil; good drainage is essential.
Temperature
Tolerates cool winters and frost; protect young plants below about -2 °C.
How easy
Hard
Native range
Cape Prov.
Climate
subtropical
About
Oldenburgia grandis, commonly known as Suurberg cushion bush or Suurberg-kussingbos, is a shrub or small, gnarled tree in the family Asteraceae.
It occurs in the mountains around Makhanda in South Africa. It grows to a height of about 5 m on sandstone outcrops. It has thick corky bark and large leaves clustered at the ends of branches. The leaves are dark green and leathery, reminiscent of loquat leaves, but generally a good deal larger. The emergent leaves are densely and completely felted with white hair. Most of the felt is lost as the leaf matures, but some persists on under-surfaces.It has woolly young leaves for the cold. Flowers are white or purplish and borne in large heads some 5- to 12 cm in diameter. The flowerheads are terminal; The same plant may bear solitary heads, plus heads borne in loose, irregular panicles.
Text excerpted from the Wikipedia article Oldenburgia grandis by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.