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Species library › Cochemiea › Cochemiea palmeri
Succulents Well documented

Cochemiea palmeri

A clustering, hook-spined cactus formerly placed in Mammillaria. It is endemic to the fog-bathed San Benito and Guadalupe islands off Pacific Baja California. Its climate is cool, mild and frost-free, with little rain, so give it bright light, cool summers and a lean, fast-draining mix.

Cochemiea palmeri
Photo: Tom Wainwright, CC BY 4.0, via Wikimedia Commons
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 on rock (lithophyte)

Where it grows wild

Grows on rocky ground and slopes in coastal scrub on Pacific islands, alongside Dudleya and Deinandra. Frequent marine fog provides moisture.

Sea level to about 300 m.

Mexico Northwest (Baja California islands)

🔒 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 CC BY 4.0 licence, unmodified.