A no B W,J. E Excellent red wine. Hardy to -40oF St. Pollinate with LaCrosse or Swenson Red. Wine resembles Reisling. This grape, bred in Japan, is notable for very large black berries.
Flesh is firm, mild and sweet.
F is about as cold as it's reliably hardy. It ripens one and two weeks before Concord, needing a fair amount of heat. Also, the seeds are quite large, though not unusually so, compared to the size of the berries. Tetraploid grapes tend to have brittle shoots and roots, and should be staked carefully to prevent breaking. A real show grape.