Tomato cages contain the prolific plants during the growing season. Tomatoes do best when the green foliage and fruits are held up off of the ground. All tomato cages must have some form of auxiliary support. As the plants grow inside the cage, the weight increases, and the cages can be easily toppled by high winds or even the weight of the plant itself. Tomato cages can be hung by side supports made from basic wooden stakes or from an overhead wire held in place by steel posts.
Weave the end of the 6-foot long wooden stakes through the sides of the open wire tomato cage, directly opposite each other, at the 3 o'clock and 9 o'clock position. Pound the wooden stakes into the soil with the 3-pound hammer approximately 6 inches deep.
Cut two pieces of wire 6 inches long. Wrap the top of the tomato cage around one of the wooden stakes with one of the pieces of wire. Tighten the wire by twisting the two ends together with the pliers. Attach the other wooden stake to the top of the tomato cage in the same fashion.
Add extra support by placing the two steel posts on opposite ends of the tomato growing bed. Align the posts with the center of the tomato cages. Pound the steel posts into the ground between 8 inches and 10 inches deep.
Run the steel wire from one post to the other. Weave the single wire through the tops of the open wire tomato cage. Secure both ends of the wire to the top of the steel posts. Tighten the wire with the pliers.
Cut a 3-inch piece of wire. Wrap the short piece of wire around horizontal upper support wire, running between the two steel posts, and the tomato cage. This will add extra support to the tomato cage, and virtually hang the cage between the two steel post supports.