Thomcord Seedless Grape Vine--Shipped in Soil on Foam Cushion, Five Gallon Container Thomcord is a seedless grape developed from two of America's favorites--Concord, of peanut butter and jelly sandwich fame, and Thompson Seedless, a summertime classic. Both are proud parents of a grape variety that you just got to try. Enjoy blue-black skin with whitish bloom and bold flesh color of the Concord, plus a pleasing Concord like flavor that's lightened by the sweet, mild taste of its Thompson parent. The fruit on the Thomcord is slightly firmer than Concord. Fruit ripens late July through mid August. Cold hardy to USDA zone 7 and probably zone 6. Shipped as a potted five gallon plant in its original soil and container.