Sclerocactus wrightiae

A small, solitary fishhook cactus of the San Rafael Swell region of central Utah, protected in the wild and rarely grown well on its own roots. It needs full sun, a very mineral soil, a warm summer and a cold, 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

Grows on fine, often shale-derived soils and gravelly flats in sparse cold-desert shrub, fully exposed.

Roughly 1,400 to 1,900 m; the single usable record sits near 1,790 m.

Utah

🔒 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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More Sclerocactus

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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 3.0 licence, unmodified.