Agaricus gennadii

A thermophilous Agaricus of sandy ground, notable for a membranous, volva-like sheath at the stem base; it was long placed in the separate genera Chitonia or Clarkeinda. It fruits partly buried in sand or loose soil in dunes, dry grassland, gardens and parks, mainly around the Mediterranean and in warm parts of western Europe.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Very humid airBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal rest

Where it grows wild

Open, sandy or loose disturbed soil in dunes, dry grassland, parks and gardens, often emerging from under the surface. A soil saprotroph, not mycorrhizal.

Mostly lowland: recorded elevations span 1–1783 m, median 135 m (37 records).

EuropeWestern AsiaNorth America

🔒 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.