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Species library › Gymnocalycium › Gymnocalycium ritterianum
Succulents Partly documented

Gymnocalycium ritterianum

A flattened globular chin cactus from the Famatina area of La Rioja, north-west Argentina, with white to pale pink flowers. It likes bright light with a little shelter, warm summer rains and a cold, dry winter.

Gymnocalycium ritterianum
Photo: Hryhorii22, CC BY-SA 4.0, via Wikimedia Commons
At home, aim for
Day Cool-growingTargets 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

Stony slopes with grasses and low shrubs in the arid Andean foothills; the plants often sit partly sheltered by vegetation.

Foothill and mountain sites around Famatina and Chilecito, roughly 1500–2500 m.

ArgentinaLa Rioja

🔒 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.