Echinopsis oxygona

A robust, offsetting globular to short-columnar cactus of the lowland grasslands of Uruguay, northeastern Argentina and southern Brazil, famous for huge scented pink or white night flowers. It is easy, fairly frost-tolerant and grows through a warm, humid summer.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Rocky outcrops and open grassland in the lowlands of the Río de la Plata region.

Recorded at 25–269 m (median 38 m); the literature gives up to about 1,000 m.

UruguayArgentinaEntre RíosBrazilRio Grande do SulParaguay

🔒 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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More Echinopsis

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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.