Mammillaria spinosissima

A densely spined, columnar Mammillaria from the dry hills of Morelos, Guerrero and the State of Mexico, growing up to about 30 cm tall and clustering with age. It wants strong light, a summer-rain growing season and a dry, mild winter.

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

Dry tropical deciduous forest and xerophilous scrub on rocky slopes.

Records span 1263–2302 m, median 1760 m; the literature gives about 1600–1900 m.

MorelosGuerreroState of MexicoMexico City

🔒 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.