Hypholoma polytrichi

Moss brownie

A small brown Hypholoma that grows among haircap moss (Polytrichum) on acidic heaths, bog margins and in conifer forests across northern Europe. It is especially common in Sweden and is not cultivated.

Hypholoma polytrichi — Photo: James Lindsey, 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

Expects a seasonal rest

Where it grows wild

Among Polytrichum and other mosses on damp acidic ground in heath, bog edges and open conifer woods.

Recorded at 6–2234 m, median 40 m (34 records).

Europe

🔒 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.