Eulychnia acida

A tree-like, branching columnar cactus from the semi-arid hills of north-central Chile, known locally as copao, with sour edible fruit. It is used to a mild, almost rainless climate with very bright light, so it needs a lean mineral mix, sparse water and full sun. Winter is the cool and slightly wetter season.

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

Open matorral scrub on dry hills, rocky slopes and valley sides of the Coquimbo and Atacama regions, from near the coast to the inland valleys.

Few records carry an elevation. It is generally known from lowland to mid-elevation hills, up to roughly 1,000-2,000 m.

Chile NorthChile Central

🔒 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 Eulychnia

Eulychnia breviflora Eulychnia castanea Eulychnia iquiquensis Eulychnia ritteri Eulychnia taltalensis Eulychnia chorosensis Eulychnia vallenarensis Eulychnia elata

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.