The peace lily (Spathiphyllum) and its many cultivars offer ease of growth as a houseplant. The plant acclimatizes to low-light situations, which makes it well-suited to living indoors. Available in numerous sizes, the plant fits into most areas of the home–from a small nook to a large corner. The peace lily produces a unique flower: a white leaf bracket that rises to the side of a flower spike.
A tropical plant, the peace lily grows best when the temperature is between 68 to 85 degrees Fahrenheit. During the night the peace lily will tolerate a drop to 58 degrees F. The plant is unable to tolerate temperatures that dip below 40 degrees F and will easily succumb. The peace lily will suffer leaf drop if exposed to cold drafts, such as a door opening during the winter by the plant.
Place the peace lily in filtered bright light for optimum growth. The plant tolerates low-light situations with ease, but it will not grow as abundantly. The plant does not do well in hot, direct sunlight and will show signs of distress by wilting.
The peace lily tends to consume a great deal of water. Water it regularly whenever the soil dries out. The plant does not tolerate standing water around its root system, so make sure the plant's container has a hole in the bottom to allow it dry out. If the peace lily goes for an extended time with dry soil, its leaves will begin to dry out. Due to its abundant foliage, the peace lily enjoys a light weekly misting with water. Misting and wiping the leaves helps to remove any dust buildup on the plant.
The peace lily needs regular nutrients when grown as a houseplant. It benefits from fertilizing with a general-purpose fertilizer every two months. Never overfertilize the plant, as it is very sensitive and will begin to show signs of burning on its green foliage.
As ample roots form on the peace lily each year, repotting in the spring benefits the plant greatly. The peace lily only requires a pot one size larger then the current pot it occupies. As the plant ages division becomes necessary. Divide the plant every year and transplant each section into separate pots.