Fall Mulching: What are the Benefits?
Mulching has lots of benefits, but what about mulching in the fall? Fall mulching helps protect your plants from winter weather, reduce erosion, and improve water retention. It can also protect your perennials' roots until spring.
Benefits of fall mulching:
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Holds moisture in the soil through dry, windy winters
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Steadies soil temperature, so freeze-thaw cycles are less likely to push plants out of the ground
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Protects bare soil from wind and water erosion
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Feeds the soil as it breaks down, adding organic matter for earthworms and soil microbes
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Gives you a head start on weeds next spring
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Benefits of Mulching in the Fall
Using mulch in the fall is a great way to protect your plants from the harsh winter elements. According to Aaron Steil with Iowa State University Extension and Outreach, “In the fall, mulch can help protect newly planted perennials and other plants from harsh cold temperatures”. This is a great way to help newly planted perennials thrive during the winter months.
Another benefit of using mulch in the fall is retaining moisture in the soil and preventing erosion. Wind and runoff from winter weather can cause erosion even when it's not noticeable. “Instead of rain or melting snow directly striking exposed soil, the mulch absorbs and disperses some of that impact”. (Central Tree, 2026) . Adding mulch in the fall is a great way to buffer winter weather and prevent extra work in the spring.
Tips for Successful Fall Mulching
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Add a defined edge to keep mulch from spreading [2]
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Experts say mulch should be four inches deep [2]
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For laying mulch around trees, keep mulch six inches from the trunk [2]
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Wait for plants to go dormant [3]
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Sources
[1]Central Tree. (2026). Benefits of Mulching in the Fall. Central Tree. https://centraltree.net/2026/09/23/benefits-of-mulching-in-the-fall/
[2]Eric Hammond, David Whiting, Carl Wilson, Catherine Moravec, Jean Reeder Reviewed by John Murgel & Deryn Davidson. (2026, February 10). Mulching: CSU extension. Colorado State University Office of Engagement and Extension. https://extension.colostate.edu/resource/mulching
[3]Madden , H. (2026, August 29). Should you mulch your garden in Fall? what experts say. Martha Stewart . https://www.marthastewart.com/should-you-mulch-your-garden-in-fall-12067290
[4]Steil, A. (2026, July 6). Using mulch in the garden. Yard and Garden. https://yardandgarden.extension.iastate.edu/how-to/using-mulch-garden
