Weingartia arenacea

A small, flat-topped globular cactus from the Cochabamba highlands of Bolivia, long grown as Sulcorebutia arenacea, with short comb-like spines that look sandy from a distance. It grows in intense mountain sun with cold dry winters and a summer rainy season. Give it strong light, cool nights and a dry winter rest.

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

Grows in stony or sandy soil among grasses and low shrubs on open highland slopes, typical of the Sulcorebutia group.

Only two wild records; the climate is calculated for about 2200 m, but this group usually grows higher, at roughly 2500–3200 m.

Bolivia (Cochabamba)

🔒 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.