To say there are lots of wine grape varieties is an understatement. These include grapes that ripen early in the season, those that are early to mid-ripening, mid to late ripening and, of course, the late-ripening grapes. Growing wine grape varieties is a long-term investment. Select a cutting to propagate a new vine, taking one or two cuttings per plant. This should be done in late fall when leaves have dropped. Cutting should be ΒΌ inch in diameter and at taken from canes at least a year old. Make the cut just below a bud at a 45-degree angle, then another about an inch above the bud. Three buds should be present on the cutting. Find more about wine making and types of grapes here.
SOURCE:http://www.gardenoholic.com/grow-grapes-home-winemaking/