I bought a house with an existing grape vine last fall. I didn't know we could even grow grapes in North Dakota before then. It was nicely growing and crawling along our chainlink fence. This spring before it began to bud I attempted to move some stray branches into the fence so it wouldn't grow out, but didn't feel like it needed to be trimmed back. I was wrong. The vine has turned into a bush. I wonder if it's best if I just cut it back, or if tying it to my fence to help it grow along is better. I am not worried about the harvest this summer, we don't know how to make anything with the grapes and don't feel like we will have the time to learn this summer. But I do want to keep the vine healthy because I want to learn to do stuff with it in the future.
So I don't know exactly what is is, I'm told they are a type of wine grapes. Last year I only saw a few small bunches of round purple fruit on it. It hasn't taken over much space, perhaps because the previous owner kept it well trimmed. But it certainly looks healthy and has a ton of tiny berry bunches already this year.