Tomatoes are a little trickier to grow in pots than peppers or eggplants, but they're well worth the effort. You can grow determinate (bush) tomatoes in 5-gallon or 7-gallon pots, but indeterminate (vining) tomatoes are more productive, more flavorful, and there's a much wider choice of varieties.

For indeterminate tomatoes, you'll need a 10 to 15-gallon pot if you're growing them organically. The larger soil volume gives you more room for organic nutrients and holds more water, which is critical when the plants reach 7 or 8 feet high.

Cherry tomatoes are the easiest and most foolproof tomatoes to grow in containers, followed by salad tomatoes and finally beefsteak tomatoes. In general, the larger the tomato, the more likely you'll have problems like Blossom End Rot, so for beginners, I recommend cherry tomatoes like 'Sweet 100', 'Sungold', or 'Black Cherry'.

This is the story of a 'Carmello' tomato I planted on my deck in 2012. See http://www.grow-it-organically.com/growing-tomatoes-in-containers.html for details.