Tremella karstenii

Tremella karstenii is a minute mycoparasite of Colpoma juniperi, an ascomycete on dead juniper twigs. It is mostly recorded from Fennoscandia, with scattered records across Europe. It cannot be cultivated.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity —Band in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal rest

Where it grows wild

A parasite of another fungus: it grows in the ascomycete Colpoma juniperi on dead, still-attached juniper twigs.

Recorded elevations 0–1795 m, median 200 m (8 records).

NorwaySwedenFinlandCentral and southern Europe (scattered)

🔒 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.