Mammillaria pottsii

A slender, clustering Mammillaria of the Chihuahuan Desert in north-eastern Mexico and the Big Bend region of Texas. Grow it in full sun in a mineral mix, with a hot, lightly watered summer and a cool, dry winter.

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

It grows on rocky, typically limestone, desert hills and slopes in Chihuahuan Desert scrub.

Records span 438 to 2,221 m, with a median of about 1,400 m.

MexicoCoahuilaChihuahuaDurangoNuevo LeónZacatecasSan Luis PotosíTexas

🔒 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 CC0 licence, unmodified.