Throughout the summer, you should water, prune, and fertilize your poinsettia as usual. You can use a liquid, organic fertilizer diluted to half strength during the growing season only.

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 ...