A small, velvety-stemmed bulbous plant from South Africa's Cape region, grown for its star-shaped blue or violet spring flowers. It needs a winter-wet, sunny spot with sandy, well-drained soil and a dry summer rest.
Family
Iridaceae (Iris family)
Grows as
Bulb
Light
Full sun
Water
Water freely in the wet winter and spring growing season, then keep almost dry during the summer dormancy.
Soil
Sandy, free-draining soil or gritty potting mix.
Temperature
10–25 °C; tolerates light frost when dry, protect from hard freezes.
How easy
Easy
Native range
WSW. & SW. Cape Prov.
Climate
subtropical
About
Geissorhiza aspera, also known as the blue satin flower or blou sysie, is a geophyte from South Africa.
Where it grows
This species is endemic to South Africa. This species was believed to be limited to the Western Cape until 2012, when a population in Namaqualand in the Northern Cape. It is found growing between Gifberg and Agulhas, where it is most common on moist sandy soils at altitudes of 70–100 m (230–330 ft).
Text excerpted from the Wikipedia article Geissorhiza aspera 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.