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Species library › Armatocereus › Armatocereus rauhii
Succulents Partly documented

Armatocereus rauhii

A tall, branched, bluish-green columnar cactus from the dry inter-Andean valleys of northern Peru, around the Marañón. It is a full-sun plant of hot, dry rocky slopes, so give it heat, strong light and a pronounced dry season.

Armatocereus rauhii
Photo: Manuel Roncal, CC0, via Wikimedia Commons
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

Dry valleys, rocky slopes and thorn scrub on the Andean slopes of northern Peru.

Mostly 500-1,500 m, reaching higher further south. The records span about 580-2,300 m.

Peru

🔒 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.