I'm eating local, with myriad local farmers' markets:
Roslindale
Where: Adams Park, at Washington St + Cummins Hgwy
When: Saturdays, 9 to 2, June 28 to Oct 25
Newton
Where: Cold Spring Park - 1200 Beacon Stree, Newton Highlands
When: Tuesdays, 1:30 to 6, July 10 - Oct 30
Newton's other market
Where: American Legion Post 440 - 295 California Street
When: Fridays, 1:30 to 6, July 6- Oct 26
Jamaica Plain
Where: Bank of America Parking Lot - Centre Street
When: Tuesdays, noon to 5; Saturdays, noon to 3, July - November
WIC Coupons accepted
http://www.massfarmersmarkets.org/
Google "localvore" and your nearest city to see if there's listings. Also "farmers markets" and your local city.