Psilocybe polycephala

Psilocybe polycephala (Paulet) Peck, also treated as Psathyrella polycephala and as a variety of Psilocybe spadicea, is a clustered, wood-rotting mushroom of eastern North America. Records run from New York, Michigan, Ontario and Manitoba to the California coast, mostly fruiting in September and October on wood in mixed forest.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Very humid airBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

Expects a seasonal rest

Where it grows wild

Clustered on wood (stumps, buried wood and logs) in mixed hardwood forest and parks.

Recorded from near sea level to about 430 m.

Northeastern United StatesGreat Lakes regionSouthern OntarioManitobaNorthern California

🔒 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.