Tephrocactus aoracanthus

A chain-segmented opuntioid cactus from the Monte desert of western Argentina, known for its long, flattened, papery-looking spines. It needs full sun, hot summers, a cold and bone-dry winter, and a very mineral mix. Segments root readily, but the plant rots quickly if kept wet and cool.

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

Grows in open, stony desert scrub and on gravel plains and rocky foothills of the Monte, in full exposure.

Few records carry an elevation. The sites lie at about 800 to 1,500 m along the eastern foot of the Andes.

Argentina 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 CC0 licence, unmodified.