Discocactus horstii

A tiny, flat, solitary cactus from quartz sand and gravel in the Serra do Barão of northern Minas Gerais, growing under shrubs at 800 to 1200 m. It needs warmth, bright filtered light, a mineral sandy mix and a dry winter, and like other Discocactus it rots easily when cold and wet.

At home, aim for

Day IntermediateTargets in Plantistry

Night A clear drop at nightTargets 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

Gravel and quartz-sand soils, typically under shrubs, in a seasonally dry tropical biome.

800 to 1200 m; the single climate site is at about 1100 m.

Minas Gerais

🔒 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 Discocactus

Discocactus heptacanthus Discocactus placentiformis Discocactus buenekeri Discocactus diersianus Discocactus hartmannii Discocactus petr-halfarii Discocactus bahiensis Discocactus boliviensis Discocactus catingicola Discocactus zehntneri Discocactus fariae-peresii Discocactus pseudoinsignis All 16 →

Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.