Epithelantha potosina

A tiny white-spined button cactus known only from San Luis Potosí, Mexico, recorded around 1750–2000 m. Like its relatives it grows in open, sunny spots, often half-buried among limestone chips, with a dry, cool winter and a modest summer rainy season. It is slow, rots easily and wants very mineral soil.

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

Open Chihuahuan Desert scrub on limestone hills; the genus often sits partly covered by limestone fragments, which shade the base. Detail is generalised from the genus.

Climate sites sit at about 1770 and 2020 m; GBIF records carry few elevations.

Mexico (San Luis Potosí)

🔒 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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More Epithelantha

Epithelantha bokei Epithelantha greggii Epithelantha pachyrhiza Epithelantha cryptica Epithelantha ilariae Epithelantha micromeris Epithelantha polycephala Epithelantha pulchra Epithelantha spinosior

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 CC0 licence, unmodified.