'Winter Rose' Poinsettias are a mainstay of homes and businesses during December. Poinsettias can remain beautiful beyond the holiday season if the plants are cared for carefully. Choose a plant with small, tightly clustered yellow buds in the center. Look for crisp, bright, undamaged foliage. At home, water the plant when dry. Do not allow excess water to remain in the saucer or in the decorative foil . Place in a room with bright, natural light. Ideally, direct sunlight should fall on the foliage for three or more hours during the day. Keep out of drafts and away from appliances and heat vents. After a few weeks, fertilize with ordinary houseplant fertilizer.