Opuntia rooneyi

A prickly pear known only from a small area of the Big Bend region of west Texas, around 370–590 m. It is a Chihuahuan Desert plant: full sun, very hot summers, cool dry winters and a lean mineral soil.

At home, aim for

Day Cool-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

Chihuahuan Desert scrub on gravelly or rocky ground at low elevation in Big Bend; specific microhabitat is not well documented.

Recorded at 366–593 m, median about 580 m.

United States (Texas)

🔒 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.