Psilocybe castanella

A small chestnut-brown agaric originally described by Peck and moved into Psilocybe sensu lato by Noordeloos. GBIF has only four records (three in the United States, one in Brazil), and its ecology is not documented in the sources consulted. The conditions here are built from the one usable record in northern Michigan plus what is typical for temperate Psilocybe of forest debris.

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

Natural substrate is not documented in the sources consulted; most small Psilocybe sensu lato grow on humus, leaf litter or well-rotted plant debris. The usable record comes from the cool mixed-forest zone of the upper Great Lakes.

The usable record is at about 190 m near Lake Huron; no elevation range is published.

United States

🔒 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.