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Species library › Gymnocalycium › Gymnocalycium rhodantherum
Succulents Partly documented

Gymnocalycium rhodantherum

A small globular Gymnocalycium from La Rioja and San Juan in northwest Argentina, named for its reddish anthers. Grow it like other Andean-foothill Gymnocalycium: bright but not scorching light, warm wet summers and a cold, dry winter.

Gymnocalycium rhodantherum
Photo: Hryhorii22, CC BY-SA 4.0, via Wikimedia Commons
At home, aim for
Day Cool-growingTargets in Plantistry
Night Close to the dayTargets 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

Gymnocalycium of this region grow on stony slopes and among shrubs and grasses in the dry Monte and Chaco-Andean scrub, often partly shaded by nurse plants.

Records lie roughly between 900 and 2,100 m in the sierras of La Rioja and San Juan.

Argentina Northwest

🔒 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

Grow Gymnocalycium rhodantherum? Add it to a free garden and its full profile opens. Pro opens all 38,374 profiles in the library, plants and fungi.

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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.