Haageocereus decumbens

A sprawling, densely spined cactus of the hyperarid coastal desert of southern Peru and far northern Chile, with white night flowers. It grows almost without rain, relying on winter coastal fog, so it wants bright light, mild temperatures and a very lean watering regime.

At home, aim for

Day IntermediateTargets 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

Sandy and rocky coastal desert slopes and lomas near the sea, where winter fog (garúa) supplies most of the moisture.

Low coastal hills; literature gives about 200–700 m, and records span 120–785 m.

PeruChile 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

Grow Haageocereus decumbens? Add it to a free garden and its full profile opens. Pro opens all 38,374 profiles in the library, plants and fungi.

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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.