Crassula umbraticola

A small soft-leaved Crassula from the summer-rainfall east of South Africa whose name means 'shade dweller'. It grows in sheltered, partly shaded spots rather than open veld, so it wants bright but not blazing light, a wet warm summer and a cool, fairly dry winter.

At home, aim for

Day Cool-growingTargets in Plantistry

Night A clear drop at nightTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal restGrows on rock (lithophyte)

Where it grows wild

Recorded from sheltered rocky places and grassland or forest margins in the eastern Cape, Free State and KwaZulu-Natal; the epithet points to shaded rock ledges and crevices. Little published beyond the original description, so the microhabitat is inferred from the name and genus.

Few records carry an elevation; the measured sites have frosty winter nights typical of the inland escarpment rather than the coast.

Cape ProvincesFree StateKwaZulu-Natal

🔒 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.