Chasmanthe floribunda is a deciduous corm-forming bulb from the Western Cape of South Africa, grown for its orange-red tubular spring flowers. Give it full sun, very well-drained soil and a dry summer dormancy.
Family
Iridaceae (Iris family)
Grows as
Bulb
Light
Full sun
Water
Water during the winter growing season and keep almost dry while dormant in summer.
Soil
Very well-drained soil or gritty mix.
Temperature
Mild climates; hardy to about -5 °C, protect from hard frost.
How easy
Easy
Native range
W. & SW. Cape Prov.
Climate
subtropical
About
Chasmanthe floribunda is a species of flowering plant in the iris family which is known by the common name African flag.
How to grow it
For its cultivation it needs very well-drained soil and a place in full sun. It propagates easily by growing bulblets around the original corm, and also multiplies by seeds. Chasmanthe emerges from the ground in autumn in the Western Cape, South Africa, after the first winter rains. It is frequented by sunbirds, which feed on the nectar it provides at this time of year. It flourishes and flowers in both sun and shade.
Where it grows
This plant is endemic to Cape Province in South Africa, but it has been introduced to other areas of similar climate, and is considered to be naturalized in California, Algeria, Australia, Argentina, and St. Helena.
Text excerpted from the Wikipedia article Chasmanthe floribunda 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.