Parodia ottonis

A small, clustering globular cactus from the grasslands and rocky outcrops of southern Brazil, Uruguay and neighbouring Argentina and Paraguay. It comes from a humid climate with rain all year and cool winters, so it takes more water and less heat than desert cacti but still needs a cool, drier winter to flower well.

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

Grows among grasses and in rock crevices on outcrops of sandstone, granite and basalt in the pampa and campos grasslands.

Mostly low hills around 60–300 m, occasionally up to about 1,150 m.

Brazil SouthUruguayArgentina NortheastParaguay

🔒 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 Parodia

Parodia concinna Parodia buiningii Parodia crassigibba Parodia magnifica Parodia tenuicylindrica Parodia curvispina Parodia schumanniana Parodia chrysacanthion Parodia columnaris Parodia mammulosa Parodia scopa Parodia herteri All 77 →

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 Public domain licence, unmodified.