How to Grow: Peace Lily

Sun Requirements
Bright, indirect light from a nearby window

Bloom Period and Plant Shape
Blooms spring and fall and flowers last for a few months

Mature Height x Spread
Outdoors peace lilies can grow up to 6 feet tall. As houseplants in containers they mostly are 1- to 2-feet tall.

Peace lilies (Spathiphyllum) are tropical evergreen plants most often grown as houseplants. They are known for their white blooms that look like peace flags. The blooms are actually modified leaves. In subtropical areas they also can be used as landscape plants. In the wild they thrive on the forest floor getting just dappled light, but high humidity.  This gives you keys to the conditions they like indoors. In colder areas they can be potted and moved outdoors into a shady location for summer. Although called a lily, they are not in the lily family.

How to Plant
Plant peace lilies in containers filled with well-drained potting soil. Keep the soil evenly moist, but not wet. Keep peace lilies out of direct light.

Growing Tips
Peace lilies are easy to grow. Just don’t over water the plant or let it fry out. If your peace lily doesn’t bloom well, try moving it into a better lit room.Fertilizer in spring with a balanced houseplant fertilizer. The leaves should stay dark green and lush looking. Too much fertilizer will reduce flowering. If the plants wilt frequently, repot into a container one size larger. In winter, wash off the leaves periodically to remove dust. Giving them a shower is a nice way to increase humidity and wash the leaves. To keep the humidity high in cold winter areas, place the plants on a pebble tray filled with water. Peace lilies can be toxic to pets if ingested.

Design Tips: Place peace lilies on the floor in the living or dining room. Smaller varieties can be placed on tables or benches. Group plants together, if the room permits it, to get a lush, tropical look. This also helps keep the humidity high for the plants in winter.

‘Supreme’ and ‘Sensation’ are large growing peace lilies that can reach 3 feet tall and wide in a large pot. For smaller varieties to grow on plant stands or tabletops, try ‘Sweet Chico’ and ‘Power Petite’.


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