Every winter, people flock to buy poinsettias as part of their holiday decor. This plant, which is native to Central America, is actually the top-selling houseplant in the United States and has a ...

4-and-a-half inches, 6-and-a-half inches, or larger? Usually you want a poinsettia that's round, well-branched, and gives you that holiday cheer. To maintain poinsettias after the holidays, keep them ...