Echinocereus maritimus

A mound-forming hedgehog cactus of the fog-cooled Pacific coast of Baja California, building cushions of up to 300 stems and 2 m across. It lives in a mild, almost frost-free, very dry climate. Give it full sun, a sandy gritty mix and little water.

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

Coastal desert scrub on the Pacific side of the peninsula and nearby islands, growing with many other cacti and succulents.

Usually 0–50 m; records median 75 m.

Baja CaliforniaBaja California SurCedros Island

🔒 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.