Choose a well-draining location in full or partial sun preferably against a southern exposure wall to protect them from strong winds which would quickly tear them to shreds. When new growth begins to show, feed with an all purpose water soluble fertilizer every other week, or you may use slow release pellets. The soil should be slightly acid. Root disease is a major problem with Poinsettias, so garden soil is NOT recommended if you are repotting your plant to a larger pot. Use only a sterilized, lightweight potting mix.
Poinsettias are short day plants.
This may be accomplished by placing a potted plant in a closet or unlighted room, or by covering the plant with black cloth, black plastic frame or a cardboard box. The plant should then be returned to the light each day and given a minimum of 4 hours of direct sun. Feed your plant every 2 weeks with a high nitroger fertilizer once color has begun to show.