Gymnocalycium calochlorum

A small, clustering Gymnocalycium from the sierras of Córdoba, Argentina, growing at about 1000 m among grasses and granite rocks. It wants strong light, warm wet summers and a cool, completely dry winter.

At home, aim for

Day IntermediateTargets in Plantistry

Night A clear drop at nightTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Records cluster in the Sierras de Córdoba. Gymnocalyciums there grow in rocky grassland and open scrub, often half-hidden by grass, which gives some shade from the strongest sun.

The climate sites lie at about 1000–1090 m.

Argentina (Córdoba)

🔒 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 CC0 licence, unmodified.