Stenocereus heptagonus

A tall, branching columnar cactus of the dry coastal scrub of the Greater Antilles, especially southern Hispaniola, Puerto Rico and Jamaica. It wants heat all year, full sun and a lean, free-draining mix, and has no tolerance for frost.

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

Lowland dry thorn scrub and dry forest on limestone and coastal plains, growing among shrubs and other columnar cacti in open sun.

Recorded at 8–153 m, median 60 m; essentially a coastal lowland plant.

Dominican RepublicHaitiPuerto RicoJamaicaCubaLeeward Islands

🔒 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 Public domain licence, unmodified.