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Species library › Stropharia › Stropharia cyanea
Fungi Well documented

Stropharia cyanea

Blue roundhead

Stropharia cyanea is the name many authors use for the blue roundhead, now usually called Stropharia caerulea: a slimy blue-green Stropharia of meadows, roadsides, hedgerows, gardens and woodchip mulch. It is common in Europe, fruiting from July to November and mostly in October, and forms mycelial cords that forage through soil.

Stropharia cyanea
Photo: This image was created by user Nathan Wilson (nathan) at Mushroom Observer, a source for mycological images.You can contact this user here., CC BY-SA 3.0, via Wikimedia Commons
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
No rest period

Where it grows wild

A saprotroph of grassy and disturbed ground, hedgerows, garden beds and woodchip mulch; in Europe also in beech woods on alkaline soil. Its cords are often associated with nettle stems and rhizomes.

Recorded from 0 to 1450 m, median 295 m.

Northern EuropeWestern 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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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 3.0 licence, unmodified.