Poinsettia, the Christmas plant, is popular in many American homes. With the introduction of long-lasting cultivars, the popularity of the Poinsettia increased significantly. It was introduced to the United States in 1825 by Joel Robert Poinsett, first U.S. ambassador to Mexico who obtained plants from the wilds of southern Mexico. The common name for the exotic plant, Poinsettia, came from his last name. December 12th is celebrated as National Poinsettia Day, to honor the passing of Joel R. Poinsett. Botanically, the plant is known as Euphorbia Pulcherrima.
Water – Examine the soil daily, and when the surface is dry to the touch, water the soil until it runs freely out the drainage hole in the container. If a saucer is used, discard the water that collects in it. Do not leave the plant standing in water. Overly wet soil lacks sufficient air, which results in root injury.
A wilted plant may drop its leaves prematurely, so check the soil frequently. Plants exposed to high light and low humidity require more frequent watering. If wilting does occur, immediately water with the recommended amount, and 5 minutes later water again.
Light – If you have a poinsettia in your home this Christmas season, place it near a sunny window where it will have the most available sunlight. A window that faces south, east or west is better than on facing north. Do not let any part of the plant touch the cold windowpane because this may injure it.
Temperature – To keep the plant in bloom, maintain it at a temperature of 65 to 70 degrees F during the daylight hours and, if possible, move it to a cooler place at night. Because root rot disease is more prevalent at temperature below 60 degrees F, do not put the Poinsettia in a room colder than this. Avoid exposing the plant to hot or cold drafts which may cause premature leaf drop. Sitting the plant near a tv, computer or electronic device may also cause the plant to be too warm.