Mammillaria standleyi

A clustering Mammillaria from the Sierra Madre Occidental foothills of northwestern Mexico, with a cool, dry winter and summer monsoon rains. It needs strong sun, a dry winter rest with cold nights, and generous watering only in summer.

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 slopes in thornscrub and oak woodland, often among rocks or grasses, in mostly open sun.

Recorded at 220–2,046 m, median 1,338 m.

SonoraChihuahuaSinaloaDurango

🔒 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 Mammillaria

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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 CC BY 3.0 licence, unmodified.