Grifola acanthoides

Grifola acanthoides is an old name based on Bulliard's Boletus acanthoides, a large rosette polypore of western Europe; many authors treat it as a synonym of the giant polypore, Meripilus giganteus. The few records come from France, Britain, Spain and Germany, and conditions here combine those sites with what is known for that group.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Very humid airBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

Expects a seasonal rest

Where it grows wild

Large overlapping rosettes at the base of living or dead broadleaf trees, especially beech and oak, arising from roots and causing root rot.

Recorded sites are lowland, about 100–130 m.

FranceUnited KingdomSpainGermany

🔒 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.