Auricularia heimuer

Black wood ear

The black wood ear or heimuer is the East Asian jelly fungus behind China's huge wood ear industry, formerly misnamed Auricularia auricula-judae. It rots dead broadleaf wood, mainly oak, in temperate northern China, the Russian Far East, Korea and Japan. It is grown on broadleaf logs and, more often, on sawdust media.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Very humid airBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

No rest period

Where it grows wild

A white-rot species on dead standing or fallen wood of broadleaf trees, most often oak (Quercus).

A temperate forest species; few GBIF records carry an elevation.

Northern ChinaRussian Far EastKoreaJapan

🔒 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 Auricularia

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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.