Tomato plants are successfully grown in a variety of containers if the growing conditions are favorable. Because everyone seems to love fresh tomatoes, there are always new types of containers for growing tomatoes available on the market. One such product is the silver bag growing method that comes with a leak-proof bag, seed and soil needed to grow one tomato plant. The marketing material claims it is an all-in-one container gardening system. However, the procedure for growing tomatoes in a silver bag is the same for growing tomatoes in any sturdy waterproof bag.
Find a location for growing your tomato plant in a leak proof or silver bag that is in as much sun as possible. Tomato plants grow best if exposed to at least six hours of direct sunlight each day. Tomato plants grown in shade cannot produce a good crop of tomatoes and the plants become leggy and pale.
Fill the silver bag with potting soil. Use new potting soil that comes from a sealed bag or the potting soil that is included in the growing kit. Garden soil or potting soil that came from an unsealed container may contain disease-causing pathogens or insect eggs. If not using a grow kit with the bag included, use a bag that is of sufficient size for the tomato plant. A bag at least 12 inches in height by 8 inches wide should be sufficient for smaller varieties of tomato plants.
Plant th 2 or 3 inches of soil. If you are planting in a silver or leak proof bag that does not have drainage you must be careful not to saturate the soil so it becomes a bag of mud. The tomato plant will die if the roots are exposed to waterlogged soil for any length of time. If you are using a silver bag growing kit, the seed that is included is a tomato variety that does not produce a long vine. If you are not using a kit, choose a tomato variety to grow known as a "patio" tomato that does not grow large and outgrow the bag you are using.
Continue to keep the top layer of soil moist until the seedling appears in seven to 10 days. After the seedling appears, continue to water the plant and keep the soil moist but not wet. Lift the bag slightly after watering so you can tell how much the bag weighs when it has moisture in the soil.
Check the silver grow bag or other leak proof bag often to be sure the soil has not dried out. If it is a small bag that contains only one plant, you can simply lift the bag. If the bag is light, it needs water. If it feels heavy, then it has sufficient moisture.