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My peace lily flowers are turning brown

Updated February 21, 2017

Also known as white flag, the peace lily (Spathiphyllum spp.) is an exceptionally popular plant often grown indoors. One of the most common peace lily problems is wilt and browning leaves.

Causes

Browning may be caused by a wide variety of cultural factors. Peace lilies prefer indirect, filtered sunlight to full sunlight, which may dry out leaves. Excessive fertilising and waterlogged soils may also cause the plant to brown.

Treatment

Remove dry, brown leaves from the plant and wipe down remaining leaves to remove dust. Mist foliage with warm water, and water deeply if the soil is dry to the touch. Move the plant if necessary to a less sunny location.

Prevention

Help prevent peace lily problems by maintaining a stable environment once the plant is established. A temperature between 15.5 to 29.4 degrees C (60 to 85 degrees F) is ideal for this plant. Fertilise every two to three months with a balanced house plant fertiliser, watering the soil first to prevent the roots from burning.

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About the Author

Michelle Wishhart is a writer based in Portland, Ore. She has been writing professionally since 2005, starting with her position as a staff arts writer for City on a Hill Press, an alternative weekly newspaper in Santa Cruz, Calif. An avid gardener, Wishhart worked as a Wholesale Nursery Grower at Encinal Nursery for two years. Wishhart holds a Bachelor of Arts in fine arts and English literature from the University of California, Santa Cruz.