ID Spathiphyllum Peace Lily Plant also known as closet plants, are a popular choice for offices and homes Peace lilies enjoy medium to low light. If placed in more light they produce lovely white spathes and flower more. If kept in low light they bloom less and look like a traditional foliage plant. This tropical shade-loving plant helps cleanse the air we breathe. Light: Peace lilies prefer light partial shade, and can tolerate fluorescent lights. In fact, some have been known to thrive in rooms with no windows at all. Yellowing leaves indicate that the light is too strong, and brown leaves or streaks indicate scorching from direct sunlight. Water: In general, water at least once a week and keep the soil moist. Throughout the summer growing season, spritz the leaves with soft or distilled water. Water your plant less often in winter.