Karoo Gold (Rhigozum obovatum) is a drought-tolerant, spiny shrub or small tree from dry parts of southern Africa, known for its yellow flowers. It is grown mainly in dry, sunny gardens where it can have very little water once established.
Family
Bignoniaceae (Trumpet-vine family)
Grows as
Tree, Shrub, Perennial
Light
Full sun
Water
Water sparingly and let the soil dry out fully between waterings; established plants need little or no irrigation.
Soil
Well-drained sandy or gritty soil; avoid heavy, waterlogged ground.
Temperature
Tolerates hot, dry conditions; frost-hardy to about -5 °C once established, with protection for young plants in colder areas.
How easy
Easy
Native range
Zimbabwe to S. Africa
Climate
desert or dry shrubland
About
Rhigozum obovatum, the Karoo gold, is a perennial shrub or tree that is part of the Bignoniaceae family. The species is native to Namibia, South Africa and Zimbabwe. In South Africa, the plant occurs in Limpopo, Mpumalanga, Northern Cape, Eastern Cape, the Free State and the Western Cape.
Text excerpted from the Wikipedia article Rhigozum obovatum 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.