Q. Shortly after I purchased poinsettias, they began dropping their leaves. What can I do to prevent this from happening?

A. Poinsettias will classically drop their leaves if they are exposed to sudden changes in temperature, drafts or overly cool or dry rooms. They also will lose leaves and wilt in response to an extreme need for water. When choosing a plant, pick a healthy, full one with no discoloration on the foliage. Because poinsettias are sensitive to temperature change, wrap them carefully before transporting them outside or in your car. Indoors, poinsettias should have bright light for six hours a day, room temperatures of between 65 and 70 degrees and an even supply of moisture in the soil.