Ferocactus echidne

A compact, solitary barrel cactus with fierce yellow spines and yellow flowers from the limestone scrub of east-central Mexico. It wants strong sun, a mineral limestone-based mix, summer water and a dry, cool winter.

At home, aim for

Day IntermediateTargets 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

Limestone soils in dry scrub and the drier edges of tropical deciduous forest in the Sierra Madre Oriental foothills and the Chihuahuan Desert margins.

Literature gives about 300–1860 m; wild records span 182–2570 m, median 1371 m.

HidalgoQuerétaroSan Luis PotosíGuanajuatoTamaulipasNuevo León

🔒 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.