Jeff Sample has a small greenhouse that he uses to grow cuttings and increase the number of vines that he can plant from Foundation Plant Services. Sixty sticks of dormant wood yields about 100 plants. Since the late fall freeze last November in Washington State, Jeff Sample of Terroir Nouveaux Nurseries has been seeing high interest in cold-hardy grape varieties and clones. Also, as grape planting in Washington State expands to new areas, including western Washington, interest in cool-­climate varieties has grown. “Malbec has been hotter than a pistol,” he said, noting that he’s trying several clones in his Sunnyside, […]