The white grape variety (also Freiburg 991-60) is a new variety between Seyve-Villard 12-375(Villard Blanc) x Siegerrebe. The hybrid was crossed in 1960 by Dr. Johannes Zimmermann (1907-1998) at the State Viticulture Institute Freiburg (Baden-Württemberg). The medium to late ripening vine is mainly used as table grape and ornamental vine. No stocks were reported in Germany in 2010. Surprisingly, however, it is to be used as a wine grape in the US state of Iowa.
Pictures: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)