Plants should be removed from thier sleeves as soon as possible to prevent drooping of the bracts and leaves (epinasty) due to ethylene buildup though this problem is not common with newer varieties on the market.
Maintain bright light is important to keep the leaves healthy and the bracts properly colored. However, direct sunlight is not recommended as it fades the bracts.
Purchace plants with the bracts fully colored and with the small yellow flowers in the centers (cyathia) just beginning to show pollen. Leaves should be green and extend the full length of the stem.
Keep the plants slightly moist at all times, but do not let the plants sit in water, as root rot will delvelop very quickly. Dry, wilted plants may drop their leaves or some of the colorful bracts.
Poinsettias are chill sensitive and should not be exposed to temperatures below 50 degrees F. A general wilted apperance, leaf drop or a blackening of the bract edges are possible indications of chill dammage.
Poinsettias are not poisonous as is sometimes proclaimed. Contact the Society of American Florist at www.aboutflowers.com for more details and research concerning poinsettia toxicity.