Coryphantha echinus

A small solitary or clumping cactus from the Chihuahuan Desert of west Texas and northern Mexico, densely clothed in pale spines and bearing yellow flowers that last only a few hours. It needs full sun, hot summers with some monsoon rain, and a cold, completely dry winter.

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

Open desert scrub and grassland on rocky, often limestone hills and flats of the Chihuahuan Desert, growing fully exposed or among low grasses.

Recorded elevations are 1154 to 2018 m with a median of 1610 m, and the climate sites lie at about 780 to 1610 m.

TexasChihuahuaCoahuilaDurangoNuevo LeónSan Luis PotosíQuerétaroHidalgo

🔒 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.