There will be one at the Belleville Area District Library (Fred C. Fisher) on May 1th. From noon until 2pm
They don't have it on their websire this year, but I called and they said it was on. You can get directions at http://www.belleville.lib.mi.us/
CLOSED: Swap in Belleville, MI, Saturday May 1st
Michigan has the best Plant swaps.
I use to live in Belleville ^_^