Echinopsis ferox

A heavily spined, globular to short-columnar cactus of the high Andes of southern Bolivia, northwest Argentina and northern Chile, at 2,000–4,000 m. It wants intense light, a summer-wet and winter-dry rhythm, and cold, frosty winter nights, which help it flower.

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

Stony slopes in Puna and pre-Puna scrub and grassland, fully exposed.

Grows at 2,000–3,500 m, to 4,000 m in Chile; the few elevation records are at 3,705–3,717 m.

BoliviaJujuySaltaTarapacá

🔒 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.