Coprinus sterquilinus

Midden ink cap

A tall, shaggy ink cap of dung and manure heaps, especially horse manure, found across Europe, Asia and America but uncommon. It is a close relative of the shaggy ink cap and digests itself into black ink within hours of opening. It is not cultivated, but shaggy ink cap methods are a sensible starting point.

Coprinus sterquilinus — Photo: This image was created by user Copyright ©2011 TimmiT 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 IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Very humid airBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

No rest period

Where it grows wild

A saprotroph of dung and manure heaps, especially horse manure.

Recorded from 18–1390 m, median 400 m (21 records).

EuropeNorth AmericaAsiaAustralia

🔒 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.