Buffalo (Herbert xWatkins) From Cornell University's Geneva, New York experiment station. Blue-black, slipskin, with berries much like Concord in appearance, but on smaller clusters. Flavor is fruity and spicey, with less of the labrusca flavor than most American varieties. Has been used in winemaking because it has tannins similar to vinifera from that species in it's ancestry. Does best with good soil fertility. Secondary crop is good if frost hits the primary shoots. Vine is upright. Prune to three bud spurs on cordons. Hardy to between -15 to -20 F.