I am located in zone 4a/b north of Ottawa. In my backyard I have: Grape - Sommerset Grape - Reliance Grape - Pink Pearl Grape - Polar Green Grape - Earliblue Grape - Catawba Grape - Concord seedless Grapes - Petite Jewel Grapes - Concord Everything is under 3 years old so I have yet to get any grapes but they have survived thus far in my climate. I have room for 3-4 more varieties in my rows. Any recommendations? I see you have talked about Skookum and Einset but I don't know if they could survive here and besides that I can't seem to find any availability in Canada. I have considered: Montreal Blue, Mars, Vanessa as those are ones I have seen available and appear to be able to survive my climate.