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Species library › Cereus › Cereus hexagonus
Succulents Well documented

Cereus hexagonus

A tall, tree-like columnar cactus with ribbed blue-green stems and large white night flowers, from the coasts, savannas and rock outcrops of the Guianas, Venezuela and northern Brazil. It is a true lowland tropical cactus: warm all year, tolerant of humidity and heavy rain, with only a short drier spell.

Cereus hexagonus
Photo: Bruno Luka de Souza Bambirra Silveira, CC BY 4.0, via Wikimedia Commons
At home, aim for
Day Warm-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light Full sunDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

Coastal sand ridges, rocky granite outcrops, savanna and dry forest edges in the humid tropics, usually in full sun.

Mostly lowland (median about 100 m), up to about 1100 m on inselbergs.

French GuianaSurinameGuyanaVenezuelaVenezuelan AntillesBrazil NorthBrazil Northeast

🔒 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.