I have this exact kind of grape vine in my backyard. It is sour when mature but tolerable. I prune it back to a stick in the winter and it'll grow to the same size next year very quickly. Grapes seem to mature at around Aug here in Yuma, AZ.

I have a quite a bit in my backyard that I am about to thin out. I've never mailed plants before, so you will have to give me some instruction. I could ship it for you next weekend. I'm a newbie to gardening so if you have seeds or plants to trade, I would love to swap. Elsie

Rubythorne, where in MO are you? In SE MO (bootheel, my youthful home area), there is a wild grape (Vitis rotundifolia), commonly called Muscadine and/or Scuppernong grape, that are very sweet and are used extensively in the SE US for jam, jelly and home wine making. They are a fairly tender species and probably wouldn't survive if winter temperatures fall below 0F for a length of time. Many wild grapes are dioecious, requiring male & female vines, usually within 25 ft. of each other. Some selections and hybrids have been bred that are monoecious (hermaphroditic), having male & female flowers on the same plant. These are one's that are usually available from nurseries. Good luck on your quest!

I have the same problem - maybe our neighbors are related? I cut the blasted vine when it comes over into my yard (or even approaches my yard), and the closer I can get to the ground when I cut it, the happier I am. It's rooted in her yard, and she doesn't seem to care, so there isn't a heck of a lot I can do. I do look for the seedlings whenever I'm out and about in the yard, as I certainly don't want a full-blown vine in my yard. Very frustrating, when your neighbor does nothing. The neighbor behind us has a thicket of pokeweed that is about 15 feet wide and over 6 feet tall: happy birds, unhappy me. Ah well.