Life Style / Wine Grapes / Trollhaugen: Hard-frost resistant (to -30 deg. F. ie. -35 C) seedless variety created by Elmer Swenson. Suitable as tablegrape or for wine production. Reported to grow small, seedless berries on medium size compact clusters capable of long hangtime until a hard frost. Ripens very early with blue-black skin and high sugar content having a mild Concord-type flavor. No other details as yet.
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