Thelocactus hastifer

A small, columnar-to-globose Mexican cactus densely covered in white radial spines with a few longer central spines, and pink-magenta flowers. It comes from high, dry scrub around 1800-2400 m and wants full sun, a dry, cool winter and very free-draining mineral soil.

At home, aim for

Day Cool-growingTargets in Plantistry

Night A clear drop at nightTargets 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 open, semi-arid shrubland on rocky or gravelly slopes, often among low shrubs and grasses that give slight shade to the base. Detail is inferred from the measured sites and the genus.

Recorded at 1782-2372 m (median 1909 m); the altitude explains the cold winter nights.

Mexico

🔒 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.