Species library › Agaricus › Agaricus brunnescens
Fungi Well documented

Agaricus brunnescens

button mushroom

Peck's 1900 name for a brown form of the cultivated mushroom; it is widely treated as a synonym of Agaricus bisporus, although GBIF still lists it as accepted. Wild records come from compost, gardens, grass and roadside verges in North America and Europe.

Agaricus brunnescens
Photo: Burt, E. A.; Farlow, W. G.; Harvard University., CC BY 2.0, via Wikimedia Commons
At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Very humid airBand in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
Expects a seasonal rest

Where it grows wild

Compost heaps, manured gardens, grassy verges and lawns; a soil and compost saprotroph.

Lowland; few records carry an altitude.

North AmericaEurope

🔒 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 2.0 licence, unmodified.