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Species library › Eulychnia › Eulychnia vallenarensis
Succulents Partly documented

Eulychnia vallenarensis

A columnar or shrubby cactus of the southern Atacama around Vallenar and the Huasco valley in Chile, where rain is almost absent and moisture comes mainly from winter showers and coastal fog. It is slow, needs full sun and a very sparing water regime.

Eulychnia vallenarensis
Photo: Álvaro Parra Valdivia, CC BY 4.0, via Wikimedia Commons
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 on dry, stony hills and slopes in open desert scrub of the Huasco region, from the coastal hills inland along the valley.

Climate sites lie at about 120 to 650 m; inland populations probably reach around 1,000 m.

Chile North

🔒 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 4.0 licence, unmodified.