A native of Mexico, the Poinsettia has become a well-known Christmas symbol since its introduction. The Poinsettia has veined triangular leaves. However, it is most known for its colorful bracts of leaves which resemble flowers. Different varieties are available in colors of reds, pinks, and yellows. Do not make the mistake of discarding your poinsettia after the holidays, as it can be grown year-round as a houseplant. However, getting a poinsettia to “re-flower” can take some work. To accomplish this, treat your poinsettia to 14 hours of complete and uninterrupted darkness, and 10 hours of light for about 10 weeks starting in the beginning of October. This treatment can be stopped once the colorful bracts begin to develop.