Cereus horrispinus

A partly sprawling, bluish-green Cereus from the seasonally dry tropics of Colombia and Venezuela. It can reach about 5 m and has large, scented flowers that open at night. Grow it in full sun and warmth, with a dry spell, as for other lowland tropical Cereus.

At home, aim for

Day Warm-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

Grows in seasonally dry tropical scrub and thorn woodland. There are no usable wild records, so this description draws on general sources and the genus.

No elevations available. Dry tropical Cereus in this region mostly grow in lowlands and foothills below about 1,000 m.

ColombiaVenezuela

🔒 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 4.0 licence, unmodified.