Echinopsis spachiana

A clumping columnar cactus (the old Trichocereus spachianus) from the dry lowland and foothill scrub of northwestern Argentina and Bolivia, with golden spines and large white night flowers. It wants hot, sunny summers with rain and a cool, almost rainless winter.

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

Dry thorn scrub and rocky foothills of the Monte and Chaco margins, growing in open ground among shrubs. Only one wild record carries coordinates, in Catamarca at about 500 m.

The single climate site sits near 510 m; the species is generally cited from lowlands and foothills.

ArgentinaBolivia

🔒 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 Echinopsis

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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.