Poinsettias are some of the prettiest flowers of the season. If you're like me, you want to keep these beauties going for longer than a couple of months. How do you preserve them so you can enjoy more than one season? Here's what I do: First, place the plant in a dry place. I find that my garage works well. Keep the soil damp, but cut back on the amount of water you give it. In March, prune the poinsettia to about six inches above the ground and repot in a larger container. Two inches wider in diameter usually works well. When this is done, set the plant indoors, where it can receive full sun. When the poinsettia starts to grow, fertilize it. Your poinsettia will be blooming again in no time.