Thelocactus tepelmemensis

A small, slow, solitary or sparsely clustering Thelocactus known from a very restricted area around Tepelmeme in northern Oaxaca, Mexico. It grows on dry limestone hills with a sharp winter-dry, summer-wet rhythm, so it wants strong light, a mineral mix and a dry, cool 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 in the ground

Where it grows wild

Rocky limestone slopes in dry scrub and open grassland of the Mixteca highlands, wedged among stones and low shrubs that give a little side shade. Details beyond the type locality are thin; this follows the genus and the region.

Reported from upland Oaxaca at roughly 1,800–2,300 m; no wild records with elevations were available.

Mexico (Oaxaca)

🔒 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.