Echinocereus laui

A small, clustering hedgehog cactus from the Sierra Madre Occidental on the Sonora–Chihuahua border. It grows among oak woodland, rock outcrops and grassland at about 1,480–1,800 m. It needs a cold, dry winter rest and plenty of water during the summer monsoon.

At home, aim for

Day IntermediateTargets in Plantistry

Night A clear drop at nightTargets 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

It grows in oak forest, on rock outcrops and in grassland in the Sierra Madre Occidental, where it has been recorded growing with Cochemiea barbata. It forms clumps of up to about 20 short cylindrical stems.

Literature gives 1,480–1,800 m. The single measured site is at 1,430 m.

SonoraChihuahua

🔒 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.