Echinocereus waldeisii

A rare, narrowly endemic hedgehog cactus from semi-desert scrub in the Sierra Madre Oriental foothills, where Nuevo León, Tamaulipas and San Luis Potosí meet. Its thin stems sprawl through and lean on desert shrubs such as creosote bush. It wants strong light, a mineral soil, summer water and a dry, cool winter.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Grows in semi-desert brushland among creosote bush (Larrea), which shades and props up its thin, elongated stems.

Recorded at 1,055–1,356 m (median 1,331 m); published accounts give 1,200–1,500 m.

Mexico (San Luis Potosí)Mexico (Tamaulipas)Mexico (Nuevo León)

🔒 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.