Native to South and Central America, the peace lily is prized for its foliage and ability to thrive in low light conditions. Although peace lily does flower, it does not do so reliably under normal household conditions. With proper lighting and attention to the room temperature, peace lilies produce a white or pink spathe that looks like a large flower petal. This hood provides a backdrop for the column of tiny flowers, similar to the bloom of a Jack-in-the pulpit. Foliage varies from shades of green to variegated varieties.
Select a plant pot that is 2 inches larger than the original pot from the nursery. Fill the pot half to three-quarters full with lightweight potting mixture. Mix your own potting mixture with 1 part peat moss, 1 part all-purpose potting soil and 1 part perlite to create loose, well-drained soil.
Remove the peace lily from its original container. Place one hand over the top of the pot so that the stalks of the peace lily rest between your index and middle finger. Invert the pot and slide the plant free. If the peace lily resists, tap gently on the bottom of the pot to loosen the soil.
Check the roots for any signs of disease or insects. Healthy young roots appear white or light tan and firm. Discolored or mushy roots indicate disease. Trim away any discolored roots. Loosen the healthy roots with your fingers.
Place the peace lily in the new pot. Spread the roots our over the soil and position the plant to its original planting depth. Fill in around the roots with soil. Firm down with your hands to secure the plant and remove air pockets.
Water thoroughly until water runs free of the bottom of the pot. Use water at room temperature, as peace lilies are sensitive to cold water.
Place the peace lily in an area that receives bright, indirect light. Place it several feet from a sunny window or use sheer curtains to diffuse light. Although peace lilies survive in low light, they require indirect light to bloom.
Water when the soil dries. Typically, once a week watering during the winter months is sufficient, but watering needs depend on the rate of growth, size of the plant and air conditions. Check the soil often to establish a good watering routine to keep soil slightly moist. Plants typically require more frequent watering during periods of active growth from early spring until fall.
Maintain temperatures between 68 and 85 degrees F during the daytime, and approximately 10 degrees cooler at night. Place peace lilies away from cold drafts or drying heat from furnace vents.
Fertilize every two to three months with 20-20-20 fertilizer.