Corryocactus melanotrichus

A shrubby, clump-forming cactus with dark-spined stems from the high dry valleys around La Paz and Cochabamba in Bolivia. It wants intense high-altitude light, mild days with cold nights, and a 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

Rocky slopes and eroded valley sides in high Andean dry scrub. Notes rely on the many records around La Paz and on the genus.

Mostly about 3,000–3,800 m; the bulk of records cluster in the La Paz valley near 3,000–3,500 m.

Bolivia (La Paz, Cochabamba, Oruro, Potosí, Chuquisaca)

🔒 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.