Blackhoof Vineyards grows one white grape variety, Louise Swenson, from the pioneer grape breeder Elmer Swenson. Blackhoof Vineyards grows two red grape varieties. Marquette is a U of M variety and Crimson Pearl was developed by a private breeder, Tom Plocher. Blackhoof Vineyards also grows the delicious table grape, Somerset Seedless, developed by Elmer Swenson.