Mammillaria albicoma

A small clustering Mammillaria densely covered in fine white hair-like spines, endemic to the dry uplands of northeastern Mexico and listed as Endangered. It wants strong light, a warm wet summer and a cool, dry winter rest like most Chihuahuan-margin Mammillaria.

At home, aim for

Day Cool-growingTargets in Plantistry

Night A clear drop at nightTargets 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 among rocks and sparse scrub on dry limestone hills of the Sierra Madre Oriental foothills and adjacent high plateau; specific microhabitat detail is thin and is generalised here from related Mammillaria.

Recorded at 1056–2219 m, median about 1390 m.

TamaulipasSan Luis PotosíMexico Northeast

🔒 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

Mammillaria luethyi Mammillaria prolifera Mammillaria albilanata Mammillaria erythrosperma Mammillaria spinosissima Mammillaria voburnensis Mammillaria glassii Mammillaria vetula Mammillaria herrerae Mammillaria mercadensis Mammillaria albiflora Mammillaria bombycina All 145 →

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.