Echinocereus adustus

A small, usually solitary hedgehog cactus with dark, sunburnt-looking spines from high grasslands of Chihuahua and Durango, Mexico, at about 1,800–2,500 m. It wants full sun, a cold dry winter and summer monsoon 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

Grows in sandy loam within high-elevation grassland, often among grasses and open pine-oak margins.

Recorded at 1,894–2,525 m (median 2,155 m); the literature gives 1,800–2,400 m.

MexicoChihuahuaDurango

🔒 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 2.0 licence, unmodified.