There is wild fruit nearly everywhere, free for the picking. This spring, as soon as leaf buds swell in your area, go looking for blooms. Take a ride, get somebody to drive for you, so you can search roadsides and fields, along railroad tracks, in power line right of ways, and maybe even an abandoned homesite, looking for brushy shrubs, brambles, vines and trees with white flowers.
Garlic mustard has spicy, delicious leaves, flowers, seeds, and roots. It is an invasive species that may be harvested without sustainability concerns. In fact, you'll be doing your environment a favor if you eat this plant!