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Species library › Melocactus › Melocactus caroli-linnaei
Succulents Little published: much of this is inferred from related species

Melocactus caroli-linnaei

A Jamaican Turk's cap cactus. Like other Melocactus, it is a globular stem that eventually grows a woolly, bristly cephalium on top, where the flowers appear. Little is published about it specifically; grow it hot, bright and in a mineral, lime-friendly mix, and never let it get cold.

Melocactus caroli-linnaei
Photo: Emily Hjalmarson, CC BY 4.0, via Wikimedia Commons
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 on rock (lithophyte)

Where it grows wild

Probably exposed limestone rock and dry coastal scrub, like other Caribbean Melocactus. No georeferenced wild records were available to confirm this.

No elevation data; Caribbean Melocactus are usually lowland, near the coast.

Jamaica

🔒 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.