You must prune in the summer to have the vines fruit. If left un-pruned it may take up to six years to flower. To prune, pinch back the canes as they grow from the two main lateral branches (Cordons). In the spring the canes grow quickly to 8" long. Prune these back to about 4". You may need to do this every few days or so. You can stop pruning around mid-summer.
My fascination with fruit trees and what I learn along the way.
