Light
Place peace lilies in a bright area with indirect sunlight. They can tolerate most light levels, but prefer indirect light.
Water
Water peace lilies regularly, but allow the top inch of soil to dry out before watering again. Water less in the winter when growth slows down. Use filtered or rainwater instead of tap water, as the fluoride in tap water can damage the plant.
Temperature
Peace lilies prefer temperatures between 65-80°F (18-27°C).