The Backyard Produce Exchange is a San Luis Obispo group that organizes get-togethers at which they trade their backyard bounty with one another. Do you have too many zukes? Trade 'em for cukes! Too many belgian endives? Someone's got some chives!
Facebook group: https://www.facebook.com/groups/400530196806548/
Lately, produce exchanges have been taking place on the 1st and 3rd Saturdays of the month from 10:00-10:30am at the SLO Natural Foods Co-op.