I live in Nashville and have wild grapvines growing all over my chain link fence in my back yard. They are a bit of a nuisance, but I do pick and eat some of the leaves...I stuff them, Mediterranean style. Right now they have clusters of flowers on them that look like clusters of grapes. Every year it looks like they have little immature grapes, but we never get mature grapes. Can anyone tell me what's up with that? I still appreciate the vines for the leaves, but it would be cool to have grapes, too.