Elendsacker
From Urbis Wiki
The Elendsacker is the main prison of Grüngarten, and it contains a large farm on which the inmates labor. It is infamous for its compost heaps, where the bodies of animals (exterminated urban pests like rats, farm animals caught on secret meat farms, and so forth) as well as the corpses of condemned criminals are left to rot, generating a truly vile stench persisting in both the prison itself and the surrounding areas in Grimmelfelden. Once the remains have decomposed, they are used as fertilizers on the fields, on which the inmates grow soybeans and lentil to feed the urban poor of the city. However, some of the fertilizer is sold off to certain plantation owners who swear by its unique properties (as they call it).