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Species library › Haworthia › Haworthia rossouwii
Succulents Little published: much of this is inferred from related species

Haworthia rossouwii

A small, windowed, soft-leaved Haworthia from the Overberg of the Western Cape, South Africa. It has more numerous, narrow, incurved leaves than the related H. mirabilis and flowers later, in late summer to early autumn. Grow it like other retusoid haworthias: bright but not scorching light, a gritty mineral mix, and most water in the cooler months.

Haworthia rossouwii
Photo: Abu Shawka, CC BY-SA 4.0, via Wikimedia Commons
At home, aim for
Day Cool-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Dry airBand in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
Expects a seasonal restGrows in the ground

Where it grows wild

Grows on ridges, hill slopes and quartzitic outcrops in the Overberg lowlands between Bredasdorp and Swellendam, according to herbarium labels. Like its relatives, it probably sits low among grasses and small shrubs, with the leaf tips and windows exposed.

No elevation is recorded on the specimens seen; the Overberg localities (Bredasdorp, Swellendam) are lowland hills, generally below about 500 m.

Cape Provinces

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates
✓ Humidity band, and how to hold it
✓ Light as DLI and PPFD for a grow light
✓ Wet and dry seasons, and whether to rest it
✓ Substrate and airflow
✓ A step-by-step setup to grow it like the wild

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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY-SA 4.0 licence, unmodified.