Do you have a potted citrus tree that's been in the container for three years or more? It's time to repot it! You'll find your tree will be completely reinvigorated when you repot it and move it up to a slightly larger container--if you do it right. For years the conventional wisdom has been to prune the roots when you repot a container-grown tree, but I just came across this video from the folks at Sunset.com who, following the advice of the citrus experts at Four Winds Growers, now advise that you skip the root-pruning. They tell you exactly how to repot a citrus tree, what kind of soil mix to use, and how to feed it. Check it out.