Coryphantha sulcata

A clumping, grooved-tubercle cactus of the Texas Hill Country and Edwards Plateau into northeastern Mexico. It grows in grassy savanna and shrubland on gravelly to clay soils, takes hot humid summers and frosty winters, and is one of the hardier Coryphantha for growers.

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

Shrublands and savannas on gravelly, sandy or clayey soils, often among grasses on limestone, where it gets sun with light grass shading at the base.

Literature gives 300–1,100 m; the measured sites sit at 210–370 m in the northern part of the range.

TexasCoahuilaNuevo LeónTamaulipas

🔒 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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More Coryphantha

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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.