Opuntia abjecta

A tiny, low-branching prickly pear of coastal limestone barrens, with small pads that detach easily. It is critically endangered in the Florida Keys; Kew instead places the name in the Lesser Antilles and Puerto Rico. In cultivation it needs full sun, warmth throughout the year and a thin, very fast-draining mineral mix.

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

Coastal rock barrens and the edges of rockland hammocks, on bare limestone or thin humus over limestone, between mangroves and hammock forest.

Near sea level, just a few metres above the tide line.

USA: Florida KeysPuerto RicoLeeward IslandsWindward 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 CC BY-SA 4.0 licence, unmodified.