I dug and replanted a few when I lived at Lindale, TX. They thrived exceptionally well on a fence. Pruning became a necessity after about three years. I had selected vines of good producers and buried portions of them so they would root, then later dug them up and put them on the fence. There were big differences between the production from one vine to another. There were small variations between the characteristics of the fruit. Over several years I eliminated all except the best one.