Concord grapes grow well in USDA Hardiness Zones 5 through 9. Fruit generally starts developing after the grapevines are three years old. A single grapevine is able to produce up to 20 pounds of grapes per growing season. Proper care and pruning allow Concord grapevines to produce fruit for 40 years or more. Concord grapes work well in recipes for juices, jellies and wines.
Choose a growing site with full exposure to the sun. Till the soil to a depth of 10 to 12 inches. Remove any rocks or other debris and break up large soil clumps. Add a standard fertilizer to the entire garden site, following the package directions. Rake the soil to a smooth surface.
Insert two garden stakes, 3 feet deep and 8 feet apart, for each grapevine being planted. String wire between the stakes to create a trellis support system for the grapevines. Prune the vines back to one main cane. Trim off any dried roots from the root ball.
Locate the graft on the stem of the Concord grapevine by finding the swollen part of the vine at the base of the stem. Spread the root ball and dig a hole large enough to accommodate the root system. Plant the vines between the stakes at a depth that will place the graft above the soil surface. Water the vines thoroughly and mulch the growing area to retain moisture and deter weeds.
Protect your Concord grape vines in the winter by adding a layer of mulch around their main trunks. In the spring, prune off any new shoots growing from the main trunks. As cordons develop, train them to grow along the wire of the trellis.
Prune the grapevines back each year, to only two or four cordons. Prune the cordons back, leaving 10 to 15 buds per cane. Fertilize the entire growing area each year with well-composted manure or a commercial fertilizer, allowing the grapevines to leach out the nutrients as needed.