Answer: Burpee's Lakemont seedless is a good winter hardy variety. According to my zone map, it looks like you are in USDA Zone 5, but perhaps the cold winds off the lake in winter are a challenge for your grape vines. I suggest pruning your vines to a low-headed double trunk. Bend the canes down to the ground and mulch well for the winter. This should help keep them cozy and safe for the winter. I also recommend a windbreak of some sort, as drying winter winds present quite a danger to vines.
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