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Species library › Cereus › Cereus mortensenii
Succulents Partly documented

Cereus mortensenii

A columnar cactus from the dry valleys and hills of Lara and Trujillo in northwestern Venezuela, known from very few records. It wants full sun, warm days, mild nights and very little water, close to the semi-arid conditions of its home.

Cereus mortensenii
Photo: Kalebzhan, CC BY-SA 4.0, via Wikimedia Commons
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

Recorded in dry scrub and thorn woodland of the Lara–Trujillo semi-arid zone around 1,100–1,300 m. The conditions here are inferred from the two recorded sites and from other Cereus of dry Caribbean scrub.

Recorded at 1,100–1,324 m.

Venezuela

🔒 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 CC BY-SA 4.0 licence, unmodified.