Its almost -20F here now. I was actually hoping we would get a cold winter to see how hardy some of my vines are. I bought about 10 different varieties from Double A including some vinifera vines like Ives, Chancellor, Zweigelt, Dornfelder, Cabernet Franc and Lemberger. Also testing Landot Noir, Regent, Leon Millet and a few others that should be cold hardy like Petite Pearl and Marquette. We have about 8" of snow cover and I'm not giving the vines any protection at all. If they don't survive they won't be planted again. I expect at least 1/2 won't make it. We'll find out in spring I guess.
Pat
Keep us posted. I would be interested to see which ones do and don't make it