Echinocereus rayonesensis

A clumping hedgehog cactus from the Rayones Valley in Nuevo León, Mexico, with stems hidden under dense glassy white to yellowish spines and magenta flowers with a white throat. It wants strong sun, a warm wet-season summer and a cool, dry winter rest that triggers flowering.

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

Dry rocky slopes of the Rayones Valley in the Sierra Madre Oriental, in open scrub where clumps sit in full sun among rocks. The habitat detail is inferred from the region and the genus; the species itself is thinly documented.

The two measured sites sit at about 1500–1580 m; the records carry no elevations of their own.

Nuevo LeónMexico

🔒 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-SA 4.0 licence, unmodified.