Norton Grapevine (Cynthiana) - Certified (MSU)Norton (also known as Cynthiana) is a V. labruscana x V. aestivalis hybrid with a long history in eastern US wine production, particularly in Missouri and Virginia. Norton produces small to medium clusters of firm, round, black berries that ripen very late and require a warm growing season. When fully ripe, Norton can produce a rich, full bodied red wine with outstanding aging potential. **** Norton is primarily sold on a waitlist basis due to the