Is there a way to keep my plants alive in fall/winter?

I have several Tomato`s, onions, limes and flowers all potted.

I was wondering if there`s a way to keep them from dieing in the fall and winter season, or if they even will considering they arent planted in the ground.



I also wanted to know if there are vegetables or fruits i can plant in fall and winter and be able to eat in the spring and summer?

Is there a way to keep my plants alive in fall/winter?
If they're tropical than you should bring them inside before the first night chill, where there could be frost. Also you need to spray them for insects that could infest the plants while they are inside. Make sure they get enough natural sunlight and feed every 2-3 months. Remember to feel the soil and when they need water spray the leaves also
Reply:Most of the answers are right but they failed to answer the second part of you question. Vegetables for spring or early summer use include these easy to grow varieties....Cabbage, leeks, sprouts, kale, swedes, parsnips, cauliflower, most are quite hardy and will survive the winter with some small protection when there is hard frost, depending on your climate, they all survive in our Scottish winters which can be quite severe.
Reply:GREENHOUSE! There are many inexpensive kits that are easily put together so that you can overwinter plants. You might also use a cold frame. Charley's greenhouse has a great catalog.