There's lots of information about different types of grapes and how to grow them. However, whenever I visit different nurseries in the Vancouver, B.C. area, I come across just the same few varieties. Does anyone know where to get specific varieties locally? Also, I just assume that no U.S. mailorder will work due to restrictions. Specifically, I'm looking for a seedless black/purple table grape. I'm looking for Concord Seedless, Mars or any other variety that would be good for this area. Thanks.