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Species library › Agaricus › Agaricus johnstonii
Fungi Partly documented

Agaricus johnstonii

A Caribbean Agaricus described by Murrill in 1918, known from eight GBIF records, mostly Puerto Rico. The measured sites are hot and humid year-round. Growing advice builds on those measurements and tropical Agaricus culture.

At home, aim for
Day Warm-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Very humid airBand in Plantistry
Light Dappled lightDLI and PPFD in Plantistry
No rest period

Where it grows wild

Soil saprotroph of lowland Puerto Rico; Murrill's Caribbean Agaricus came from lawns, pastures and forest edges.

Few records carry an elevation; the measured sites are lowland.

Puerto RicoMartinique

🔒 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.