Homemade grape trellises are not difficult to build and require only an afternoon of time dedication and a modest investment. Build the proper trellis and you can grow grapes in colder climates as well as warmer ones. Trellises ensure maximum exposure to sunlight and air circulation. The rewards are a delicious fruit eaten right off the vine, canned into fresh jelly or made into homemade wine for the more dedicated connoisseur. There are varieties of grapes that grow in most climates and suit all tastes. Begin growing a succulent harvest of grapes by assembling the correct size of sturdy trellis for your climate.
Locate the space for the grape vines and build the trellis before the grapes are planted. The trellis must be in place before the grapes begin to grow. Place the trellis from north to south to maximize exposure to the sun on all sides of the grapes.
Dig two holes with a posthole digger, 8 feet apart, at least 2 feet into the ground and at least 10 inches in diameter.
Place a post, 4-by-4 inches in diameter, into each hole, making certain the flat sides of the posts face each other. You can use either a 5-foot post or a 10-foot post depending upon your climate conditions. In colder climates, used short trellises (3 feet). Longer trellises (8 feet) are more suitable for warmer climates to allow more exposure to sunlight. Remember that 2 feet of the posts will be sunk into the ground.
Mix quick-set cement according to package directions and fill around each post. Allow 24 hours for it to set up.
Place a strand of galvanized wire 3 inches from the ground to one of the posts and string it to the other post.
Secure the wire to the first post by using a hammer to attach it with two large post staples. Stretch the wire taut to the other post and attach it in the same manner.
Secure the second wire, 2 inches from the top of the post, by using a hammer to attach it with two large post staples. Stretch the wire taut to the other post and attach it in the same manner.