A grape arbor is not a complex structure, and building one is a project that is not beyond the resources of even a casual backyard grower. If you want to create a grape arbor, here are several tips for you. Install the arbor in a sunny location. The arbor should be strong and as maintenance free as possible, repairing or repainting arbors covered in mature grape vines is extremely difficult. Plant one bare-root grape vine on either side of the arbor early in the spring, centering each vine between the arbor’s upright support posts. If you have a large arbor or one with no lattice, plant a grape vine at each of the upright supports instead. As a general rule, a single grape vine needs 32 square feet of space at maturity. Cut the vine back immediately after planting so that it consist of only one main stem. Trim this stem back so that it has only two or three buds on it. Allow the vine to grow throughout the summer, attaching the center trunk and side shoots to the arbor as needed to keep them off the ground.
Spread the side shoots out so that they cover the lattice on the sides of the arbor, if applicable. Use old nylons or other soft pieces of cloth to tie the vines to the arbor. Fan the side shoots of the vine across the top of the trellis when it is tall enough. You can tie the vines or wrap and weave them around the top of the trellis. Prune the vine as needed in late fall or early winter when it is dormant.