1.) After blooming, remove the flower stalk to avoid energy being spent on generating seeds.
2.) Keep lilies indoors until the last frost date has passed. Soil should be kept moist, but not waterlogged. Fertilize as needed.
3.) Move the plant outside once the threat of frost is over. Keep the plant in the same pot and continue regular watering and fertilizing until the top growth dies back.
4.) Plant the bulb in a sunny, location with good drainage. Incorporate organic matter to improve drainage by tilling peat moss into the top six inches of the soil.
5.) Bulbs should be planted 6-inches deep and 12 to 18-inches apart. Water well and add mulch to maintain moisture. New growth may appear later during the summer or may not appear until next spring.
6.) In the fall, cover the dormant plants with 4-inches of straw, or 3-inches of pine needles, wood chips or other mulch for protection.
7.) In the spring, uncover the plants to allow new growth to appear. Fertilize as needed based on soil test. (Cynthia Domenghini)