Echinopsis friedrichii

A columnar to clumping cactus from northwest Argentina, the replacement name for what was described as Trichocereus shaferi (now often Soehrensia shaferi). Little is published about it; growers treat it like other Andean Trichocereus: full sun, warm summers with rain, and a cool, dry winter.

At home, aim for

Day IntermediateTargets in Plantistry

Night A clear drop at nightTargets 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

Specific habitat information was not found; related Trichocereus of northwest Argentina grow on open rocky slopes and valley sides in dry montane scrub. This is a genus-level inference.

No recorded elevation; related species in Jujuy and Salta grow at roughly 1,500–2,500 m.

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.