Aylostera nigricans

A small clustering cactus of the high Andes of southern Bolivia and northwest Argentina, growing at around 3,500-3,800 m. It needs intense light, cool nights and a strictly dry, cold winter to stay compact and flower freely in spring.

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

High-altitude puna and prepuna: rocky slopes, stony grassland and gaps between bunch grasses and shrubs on mineral soils, exposed to strong sun, cold nights and a long dry season.

Recorded at 3,500-3,800 m (median 3,700 m, only 3 records); the climate sites sit at 3,300-4,150 m.

BoliviaArgentina Northwest

🔒 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 2.0 licence, unmodified.