You don't need acreage to grow fruits and vegetables. A tomato plant can't tell whether it is in a pot or a plot. As long as it receives the proper care and adequate sunlight, its fruit will be as succulent as any grown on a farm.
Choose the appropriate variety of tomato. Determinate dwarf varieties of tomato grow best in small spaces. While shopping for varieties, look for names like Patio, Pixie, Tiny Tim, Toy Boy, Spring Giant, Tumbling Tom or Small Fry.
Select an appropriate planting location. Tomato plants grown inside, even next to a window, are unlikely to receive sufficient sunlight. Potted tomato plants should be grown outside on a balcony, porch or any other place where they receive direct sunlight.
Fill a light-colored five-gallon, ventilated pot with a peat-based soil mix that contains vermiculite. (Soil with added fertilizer will do in a pinch, but the vermiculite soil mix will ensure that the soil is properly sterile, aerated and at the appropriate pH.) Then add a slow-release plant fertilizer according to the manufacturer's instructions.
Plant your tomato seeds according to the package's direction, paying special attention to depth. Since tomato plant root systems are extensive, you will only be able to house one plant per pot. However, you may plant several tomato seeds and then choose which seedlings to pull. This is an especially good idea if you have purchased seeds of unknown quality, as all of them may not germinate.
Water the soil until it is damp and make sure it remains so. Remove the pot from direct sunlight until the seed germinates in roughly one week. Once the seedlings have sprouted, move the plants into direct sunlight.
Water your potted tomato plant regularly. Potted plants require more water than those planted in the ground. Check the soil and make sure that it is always moist. don't wait for the plant to show signs of dehydration. When watering your plant, water the soil directly. Wetting the tomato plant's leaves will make the plant vulnerable to mold and disease.