Cutting

• Take cuttings from healthy, vigorous vines during the dormant period -- either in late fall or in early spring. The University of Minnesota recommends cutting in early spring to make planting simpler. Never cut a grapevine during the growing season and always make sure that cuttings have at least three nodes, with the bottom cut just below a bud or node.
  
  

Rooting

• Root grapevine cuttings immediately after taking them from the parent plant. Place the cutting in a container full of good quality soil in a warm, humid indoor environment. Ideally, plant the cutting so that the second bud from the top is at soil level. Cuttings may also be rooted in water, sand or other media.
  
  

Planting

• Once the cutting has acquired a root system, it may be planted outside. Plant new grapevines only after the temperature is reliably above freezing. Protect them from the direct sun for the first few weeks, until they adapt to the outdoor environment. Keep the cuttings damp at all times until they have established themselves as new grapevines.