Tomatoes Grow Best with Support
The best way to keep tomatoes trim and healthy is to train them onto supports and prune tall-growing kinds during the growing season. (Pruning directs the plants' energy into fruit production rather than producing excess foliage). A stake, trellis, or cage keeps fruits and foliage off the soil and allows air to circulate around the plants, reducing the likelihood of foliage blights. Supported plants are also easier to protect from pests than plants trailing on the ground. Aphids, whiteflies, hornworms, and even field mice are more visible and more easily controlled when you don't have to battle them in a tangle of ground-hugging vines.