Water poinsettias when the surface soil feels dry. Do not let the plant sit in water. If the poinsettia is in direct light, it will need watering almost every day.
Poinsettias have bright red leaves that are commonly mistaken as flowers; the actual flowers on poinsettia plants are small and either green or yellow and grow in the center of leaf clusters. Poinsettias are native to South Mexico and Central America. They may grow to be 16 feet in height, and they are not poisonous to humans. There are over 100 varieties of poinsettias, and they are the most common Christmas plant. They are also known as the Christmas flower.