A Gardeners Forum Forums General Discussion The Banter Hall Gardener's Chat Pruning grape vines

Hello: I'm new to growing grape vines here in Western Washington. The last few years I haven't had any grapes. My questions, are when to prune? How far back to prune? Why aren't I getting any grapes, the sun is good in it's current location? Do grape vines have to mature before they produce? Thanks.

I hope this helps a little.. http://www.thegardenhelper.com/quickies2.htm and
http://www.ehow.com/how_172725_prune-grape-vine.html