Extend or start your growing season early by growing a tomato plant indoors. When you choose to grow a plant indoors, you can enjoy the sweet taste of tomatoes all year long. Those tasteless, mealy tomatoes from the store have nothing on the tomatoes you will grow right in your home. Make the most of any sunny spots in your house and grow a tomato plant indoors.
Pour 1 inch of gravel into the bottom of a 5-gallon or larger pot. Add potting soil until the pot it is 3/4 full.
Dig a hole in the middle of the soil large enough to accommodate the roots of the tomato plant. Place the plant in the hole and place soil around the base of the plant.
Place the tomato cage's stakes into the soil, surrounding the plant. Push the stakes into the soil until it is secure.
Water the plant with fertilizer. Use a 10-20-10 or 12-24-12 formula. Mix fertilizer with water, following the directions included with the fertilizer. Use a 2-gallon watering can to mix the formula and use for watering. Use a stick to mix the solution until dissolved.
Water the tomato plant daily using the fertilizer solution. Water only until the soil appears moist.
Place the pot in a window or by a glass door where it will receive full sunlight. Occasionally rotate the plant to allow all sides receive maximum sunlight.
Pick fruits from the plant when uniformly colored and firm.