Gymnocalycium paraguayense

A small solitary chin cactus from the lowlands of Paraguay, flat when young and globular with age, with white flowers that have a pink throat. It grows in partial shade in a hot, summer-wet subtropical climate and is listed as Vulnerable, so seed-grown plants are the ones to buy.

At home, aim for

Day IntermediateTargets 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

Grows at low altitude in Paraguarí, Cordillera and the Chaco, sheltered by grasses and shrubs in partial shade rather than on open baked rock.

About 150–300 m; the single measured site sits at 93 m in the Chaco.

Paraguay

🔒 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.