Crassula cultrata

sharp-leaved crassula

A small branching succulent shrub (20-80 cm) from the southern Cape to KwaZulu-Natal. It has flat, yellow-green leaves edged with sharp red-brown margins. It grows on rocky ridges and outcrops in scrub, often in river valleys, and needs strong light to keep its red edges.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Rocky ridges and outcrops in scrub vegetation, frequently in river valleys. It ranges from near Swellendam and Ladismith through the Little Karoo and Overberg into the arid parts of the Eastern Cape. It flowers in December and January with cream flowers.

No elevation range is given in the sources consulted. It grows on lowland to mid-elevation rocky ridges.

South Africa: Western CapeSouth Africa: Eastern CapeSouth Africa: KwaZulu-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. Photo from Wikimedia Commons, used under its CC BY-SA 3.0 licence, unmodified.