Ferocactus schwarzii

A solitary barrel cactus from Sinaloa, Mexico, up to 80 cm tall with a crown of yellow flowers and fairly few spines. It grows at low elevation (30–200 m) on cliffs and slopes in the tropical deciduous forest zone, so it is less cold-hardy than desert Ferocactus.

At home, aim for

Day IntermediateTargets 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 on rock (lithophyte)

Where it grows wild

Rocky canyon walls and slopes in the hot lowland foothills of Sinaloa, within tropical deciduous forest and thorn scrub, often in full sun on rock.

Literature gives 30–200 m.

Sinaloa

🔒 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 3.0 licence, unmodified.