Growing vegetables in small spaces such as apartments requires creativity. Tomatoes require a full day of sunlight to mature, which is hard to provide if your patio, balcony or small yard faces north. A hanging planter solves this problem, as long as you have an area that receives at least eight hours of sun, on either a southern or southeastern side of your home. Building your own tomato planter requires items found at most garden centers or discount stores, and a free afternoon to assemble it.
Buy a plastic hanging basket that is 12 inches in diameter and a minimum of 12 inches deep. Choose a basket with a removable drip tray or no drip tray.
Mark the center of the bottom of the pot with a pen or marker. Drill a 2-inch hole using a power drill with a hole saw bit. The mark is your guide for the hole.
Cut a piece of landscaping fabric or weed barrier to fit inside the bottom of the pot. Using a utility knife, cut an "X" in the fabric where it lines up with the hole in the pot.
Install a heavy-duty metal hook in the eave of your roof, choosing a sturdy area that will support the weight of the planter. Alternately, use a 6-foot metal shepherd's hook driven at least 6 inches into the ground.
Hang the tomato planter from the hook. Starting at the bottom of the planter, slip the tomato roots through the hole in both the pot and fabric so the plant is hanging beneath the pot and the roots are inside.
Fill the pot with potting soil. Gently tamp it around the root ball to hold the plant securely.
Keep the soil moist at all times, and fertilize monthly with a balanced liquid fertilizer.