Peace lilies are indoor foliage plants that are popular for their tolerance of low light and ease of care. They are one of only a handful of foliage plants that will flower in low light, and they will thrive indoors with only minimal care. Peace lily plants produce large, spoon-shaped white flowers in summer and many will continue to bloom intermittently throughout the year. The glossy, dark green leaves are also attractive when the plant is not flowering. Peace lilies are ideal for homes and offices with moderate to low light.
Plant peace lilies in any high-quality well-drained potting soil. Place the planter in a location that receives bright, filtered light for most of the day. Peace lilies will grow fine in low-light situations, but produce more flowers if grown in indirect sunlight. Never expose plants to direct sunlight, as the leaves will burn.
Keep peace lily plants at a constant temperature of between 68 and 85 degrees during the day and about 10 degrees cooler at night. Peace lilies like warm, moist conditions and will bloom more profusely if these needs are met. Place a thermometer near the plant to monitor temperatures as needed.
Water peace lilies once every 7 to 10 days with room-temperature water, or enough to keep the soil moist but not soggy. Allow the soil to dry out only slightly in between applications, as excessive drying may cause the leaves to yellow and drop. If wilting occurs, water is not being provided often enough.
Feed peace lilies using a balanced, liquid houseplant fertilizer with an NPK ratio of 20-20-20 or similar. Apply sparingly once every 2-3 months according to the manufacturer's instructions for proper dosage. Water thoroughly both before and after application to prevent root injury.
Wipe dust from peace lily's foliage using a soft, damp cloth once every 2-3 weeks, or as needed. The wide leaves of the peace lily plant are dust magnets and will need an occasional wipe-down to keep them looking their best and prevent fungal problems.
Remove flowering stems from newly acquired peace lilies as soon as the blossoms ripen and turn green in color. New flowers will typically form the following summer, at which time the plant will resume its natural bloom cycle. Leave flowers that form after this initial pruning on the plant until they begin to wither.