Gymnocalycium affine

A little-documented Gymnocalycium that the checklist places in north-east Argentina. No wild GBIF records exist, so these conditions are modelled on a single regional site in Entre Ríos and on the grassland Gymnocalycium of that area. Expect a warm, humid summer-growing cactus that wants a cool, drier winter.

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

Not documented for this species. The related Gymnocalycium of north-east Argentina grow half-sunk among grasses and low shrubs in open grassland and rocky outcrops, partly shaded by the surrounding vegetation.

Unknown. The modelled site is lowland, at about 25 m.

Argentina Northeast

🔒 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.