Large seedless blue berries good for fresh eating, juice or raisins. Typical labrusca foxiness common to Concord grapes (a general term for grapes that are native to North America). Big orbs, though might not accommodate a Rover. Thick slipskins are resistant to cracking and one of the best for disease resistance, performing well during hot wet summers. Very vigorous vine showed hardiness after –20°. Z5, but definitely worth trialing in Z4. (well-rooted vines)