question about grapevine pruning
Posted: Thu Apr 09, 2009 5:29 am
OK so I've been reading over various books and searching the internet, and am not able to get a distinct answer. I have a first year grapevine ("Niagara" variety) and not sure how to prune. The majority answer seems to be to let it go the first year and just prune off any fruit that may develop. During the Winter select the healthiest vine to become the trunk in the 2nd year and trim the rest. Other sources say trim back to a main vine first and keep it pinched back once it reaches desired height, then prune heavy in late Winter. Which is correct or recommended?