A cold front will be moving to Ohio over the weekend and low temperatures are predicted to drop below freezing in the mid to low 20s (some predict even lower). Buds of all varieties at the research vineyard in Wooster are still closed or at the bud swell stage. We measured cold hardiness (LT50) of buds collected on March 31. The graph (below) shows that LT50 ranges between -0.2 F (Frontenac) to 17.2F (Chardonnay). Let’s hope it does not get that cold.
OGEN: Dr. Imed Dami
April 1, 2015
