I'm in northern Illinois. Have around 35 varieties planted, of which most of those are cold climate varieties. I do have a few vines of Cab Franc, Cab Sauvignon, Riesling, Petit Verdot, Regent, Zweigelt, Petite Sirah, Gewurztraminer, Tannat and Merlot planted that i have to cover in the winter to avoid heavy bud damage. Large rose cones work well if you can prune the vines down in December and grow them like a shrub. I grow mine in an area of the yard that is heavy clay & limestone, but the vines still over grow, so the fruit is best used for grape jelly.