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Paul, use really deep pots for tomatoes - 3 gallon or bigger nursery pot for each plant would be good. They like to send their roots really deep! Tomatoes are originally tropical plants, and can last 2 or 3 years, but they get really woody and ungainly, and less productive.
I used to rescue tomato plants from my garden in Utah and keep them going on a sunny windowsill in the basement there all winter. If I could keep the right temperature, they would set fruit nicely. (gotta watch not to bring in bugs if you rescue from the garden, though) Keep the soapy water spray handy, I spray at least once a week to keep aphids and whiteflies at bay.
- Lots of water, and as much sun as possible.
- Night temperature is pretty critical for fruit set, between about 50 and 65 night time temps work best. 70 to 80's daytime is fine. They love heat.
- You can use a tiny paint brush to pollenate the flowers if your "wind" doesn't work. The fan will help you keep fungal diseases like powdery mildew at bay.
Here are 'Momotaro' tomatoes I grew from seed planted in September. Flowering and about to set fruit if it will only stay warm! Second pic are my Earth Boxes growing grape tomatoes, eggplant, peppers and two kinds of broccoli.