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

Haworthia blackburniae

A slow-growing, grass-like haworthia from the foothills of the Swartberg in the Little Karoo, where it hides among rocks and low shrubs with its narrow leaves drying back in drought. It grows from thickened, fleshy roots that store water, which makes it notoriously touchy in cultivation: it rots easily if kept wet and cool. Grow it like a winter-and-spring-growing Karoo succulent with bright but not scorching light and a very open mineral mix.

Haworthia blackburniae
Photo: Fernando Jose Fernandez Hingking, CC BY-SA 2.0, 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

It grows in the transition between fynbos and Succulent Karoo on the Swartberg foothills, among stones, in rock crevices and under the partial cover of small shrubs and grasses, where it is easily mistaken for a grass tuft.

No elevations are given in the sources; the foothill localities around Ladismith, Oudtshoorn and De Rust lie at roughly 300–900 m.

South Africa (Western Cape)

🔒 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 2.0 licence, unmodified.