Mammillaria laui

A small, clumping, densely white-spined Mammillaria with carmine-pink flowers, endemic to the mountains of Tamaulipas between Ciudad Victoria and Jaumave and critically endangered in the wild. It expects warm, sunny summers with rain 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 Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Grows on rocky mountain slopes between Ciudad Victoria and Jaumave, likely among rocks, grass and shrubs in submontane scrub and open oak woodland where it gets bright but partly broken light. Detailed microhabitat information is thin.

Reported from 800 to 1,700 m; former varieties followed this elevation gradient.

Tamaulipas

🔒 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.