If you live in a cooler climate, as we do in zone 6b/7, odds are good you'll have to bring some container plants inside for winter.
We love growing tropical fruit trees, and, as you can expect, they do not do very well outside when temperatures drop close to freezing (let alone as low as 0 °F that we sometimes see in extreme cases). As such, we bring our plants inside for the winter to help give them an environment that they can tolerate until the following spring when temperatures rise once again.
But there are some things you will likely experience when doing this, and after several seasons with our own citrus trees, we have some thoughts that you should know before heading into winter!