Preuss' strophanthus is a West and tropical African liana or shrub in the dogbane family, grown mainly for its long-tailed fragrant flowers. It is a tropical climber that needs warmth, bright light and a frost-free climate, so it is rarely grown outdoors outside the tropics.
Family
Apocynaceae (Dogbane family)
Grows as
Shrub, Climber
Light
Bright indirect, Part shade
Water
Water moderately during the growing season and let the top of the soil dry out slightly between waterings.
Soil
Free-draining, fertile potting mix or loam.
Temperature
18–30 °C; protect below 10 °C
How easy
Moderate
Safety
Toxic: All parts contain cardiac glycosides (strophanthin) that are poisonous if ingested, which is why the plant was used as arrow poison.
Native range
W. Trop. Africa to Tanzania and Angola
Climate
seasonally dry tropical
About
Strophanthus preussii, the Preuss' strophanthus, is a plant in the dogbane family Apocynaceae.
Where it grows
Strophanthus preussii is native to a wide area of tropical Africa, from Guinea in the west, east to Tanzania and south to Angola. Its habitat is forested areas from sea level to 1,400 m (4,600 ft) altitude.
Uses
Traditional medicinal uses of Strophanthus preussii include treatment of gonorrhoea and healing of sores. The plant has also been used as arrow poison.
[Contains information from Leaf Area Index (LAI) and Heritage Trees from data.gov.sg (National Parks Board), made available under the terms of the Singapore Open Data Licence version 1.0]
Text excerpted from the Wikipedia article Strophanthus preussii 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.