I am in the "crack" of zones 3/4, and have mostly shade in my yard. I am working on landscaping, and would like to incorporate as many edible plants as possible. So far, I can thing of some herbs (mints, etc), wintergreen (grows wild in my yard, just need to encourage & protect it), blueberries (also growing wild, but I'd like to get some larger varieties), mushrooms (on my "to-do" list, but not started yet). Any other suggestions for hardy, shade-tolerant, edible plants would be appreciated.