Concord Grapes are one of the best for northern climates, most other grapes struggle to grow in zone 4. We sell Concord grapes in the original design with seeds, for better taste and greater disease resistant. If you love grape juice, then you love Concord grapes. The fruit makes full-bodied juice or house wine. These vines produce abundant crops that have also been used to make prize-winning jams and jellies. Exceptional hardiness, vigor and disease resistance. Heat-tolerant. Ripens in late September. Self-pollinating. Grape plants need a support structure to grow on. There are two main types of support structures: horizontal and vertical. There are several options for supporting your vines. You can purchase a pre-made trellis or build your own support structure. Cattle panels are cheap and make a great trellis.