Prairie du Sac, Wis.—
One Maréchal Foch bud survived a Minnesota frost event, while its neighbor on the same grapevine died at Alexis Bailly Vineyard in Hastings, Minn.
By mid-May, most winemakers across the country aren’t worrying quite so much about spring frosts. During the weekend of May 14-15, however, grapegrowers in southern areas of Minnesota and Wisconsin had temperatures drop well below freezing. The cold temperatures started early on May 14 in western Minnesota, and by early on May 15 they had moved into Wisconsin as well.