A suggestion from Design 99:
The Yes Farm - group lives over on Farnsworth on the 'Paul Weertz block' in East Detroit. They moved here from San Francisco a year or 2 ago.
To learn more about this group read here about one of the initiator Andrew Kemp.
Another farming project is called the Hubbard Farms in South West Detroit. They were recently involved in a street music project, entitled the Unsilent Night, which also orginated in San Francisco. Check out this You Tube movie about one of these nights in San Francisco!