Propagating or rooting a tomato clone plant from a cutting or sucker. You can clone your tomato plant by taking a cutting. It's very easy. If you have an indeterminate tomato plant, just trim off a sucker or end growth. Place this in a glass of water or moist potting soil. In about two weeks, you'll have a tomato plant ready to be hardened off and placed in your outdoor or indoor garden. This is easier than growing your tomato from seed. And the cost is just right - free. Plant a tomato plant indoors in the fall when your outdoor plants are dying off and have an indoor tomato plant to produce tomatoes all winter long. In the spring, take another cutting, and you will be ready to transplant your tomato clone outdoors again.