Stropharia caerulea

blue roundhead

Stropharia caerulea, the blue roundhead, is a slimy greenish-blue mushroom of meadows, roadsides, hedgerows, gardens and woodchip mulch in Europe and North America. It is the commoner lookalike of Stropharia aeruginosa, with a thin, fleeting ring and brown gills. It is not a food mushroom, but it fruits readily in woodchip and compost beds.

At home, aim for

Day Cool-growingTargets 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

Saprotroph in meadows, roadsides, hedgerows, gardens and woodchip mulch.

Recorded at 25–1854 m, median 520 m (82 records).

Western EuropeCentral EuropeNorth 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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More Stropharia

Stropharia hornemannii Stropharia aeruginosa Stropharia ambigua Stropharia rugosoannulata Stropharia albonitens Stropharia pseudocyanea Stropharia inuncta Stropharia acanthocystis Stropharia acanthostipitata Stropharia agaricoides Stropharia agrocyboides Stropharia albivelata All 71 →

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-SA 4.0 licence, unmodified.