I have sucessfully (thanks to the forum) produced grapes on my vine for the first year, outdoors in a sheltered spot. Last year I overwintered it in the summerhouse. I can do this again as its only about 6ft tall, and not really intertwined on the trellis. The question is, WHAT do you prune off; as there are conflicting reports on this one, and HOW do you overwinter it correctly. I have 2 vines now, one is small and easy to relocate, the other fruit bearing one is vitis sauvignon, (blanc) and it has produced so much fruit that I want to get this right! Can anyone help please?