Calvatia polygonia

A puffball described by A. H. Smith in 1964 from the western interior of the USA. The few records come from the Wyoming and Colorado plains and the Front Range foothills. Its ecology is barely documented and it is not cultivated.

At home, aim for

Day Cool-growingTargets in Plantistry

Night A clear drop at nightTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal rest

Where it grows wild

Record sites are shortgrass prairie and foothill grassland; it is presumed to fruit on soil as a grassland saprotroph, like several other Calvatia.

No elevations recorded; the sites lie on the high plains and foothills, roughly 1300–2300 m.

WyomingColorado

🔒 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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More Calvatia

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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.