Parodia mammulosa

A globose, ribbed cactus up to about 15 cm across with pale yellow spring flowers, from the grasslands and rocky hills of Uruguay, southern Brazil and Argentina. It is easy if given full sun, a cool dry winter rest and a free-draining mineral mix.

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 grassland in temperate southern South America, growing in crevices and thin soil among grasses that give it light shade at the base.

Mostly lowland to hill country, from about 50 m to 1,100 m.

UruguayBrazil SouthArgentina NortheastArgentina NorthwestArgentina South

🔒 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 2.5 licence, unmodified.