Crassula thunbergiana

Crassula thunbergiana is a tiny annual crassula, about 10 cm tall, from the winter-rainfall Cape of South Africa and southern Namibia. It germinates with the autumn rains, flowers with white flowers in spring, and dies as the summer drought arrives. Grow it from seed each autumn in a cool, very bright spot and let it complete its cycle.

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

A small annual of sandy and gravelly open ground, flats and disturbed places in the winter-rainfall region. In Western Australia, where it is introduced, it grows in disturbed areas.

Records run from near sea level to about 1,100 m (few carry an elevation).

Cape ProvincesNamibia

🔒 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.