Roberto Machado Noa/
Tidying up your yard by collecting, blowing, and bagging fallen leaves—isn’t that a must-do task in autumn? Yet, with the growing trend towards eco-conscious landscaping, many individuals are rethinking this annual task. A recent poll by the National Wildlife Federation found that 18% of those surveyed plan to leave the leaves untouched in their gardens this year, up from 15% in 2024.
Leaving the leaves in place enriches the soil, safeguards pollinators and various wildlife, and can even aid in combating climate change. However, many homeowners fear that the leaves might harm their grass, attract pests, and just make the yard look untidy.
Thankfully, there’s a way to enjoy the benefits of fallen leaves while still maintaining a neat and attractive yard. We queried experts on how to harness the positives of leaves while keeping your garden looking well-kept and appealing.
Krista De Cooke, Strategic Partnership and Science Lead at Homegrown National Park, L.Be Laskowski-Sholar, Founder and CEO of Wildstead Company, Mary Phillips, Head of Native Plant Habitat Strategy and Certifications at the National Wildlife Federation
The urge to clear leaves began in the mid-20th century, concurrent with the expansion of the American suburb. “A pristine, uniform lawn was promoted as a sign of prosperity,” remarks Krista De Cooke of Homegrown National Park. “This aesthetic and the industries that flourished around it contributed to the normalization of the belief that leaves were unsightly or indicative of neglect.”
Consequently, people began to bag up leaves and discard them with the trash. Currently, around 10 million tons of yard waste are sent to landfills annually in the U.S., according to the EPA, where they release methane, a potent greenhouse gas associated with climate change.
Nonetheless, leaves are vital for the well-being of your outdoor area, experts assert. “Leaves function as a free mulch, suppress weeds, retain soil moisture, shield plant roots, and provide essential nutrients to the soil as they decompose,” observes Mary Phillips of the National Wildlife Federation.
Pollinators and wildlife also depend on them. “From the luna moth that builds its cocoon in a fallen leaf to the firefly larvae that reside there for the first two years of their existence, allowing leaves to remain is crucial for ecosystem health,” explains L.Be Laskowski-Sholar, a sustainability-focused landscape designer. Similarly, Phillips adds, “protecting overwintering insects in the leaf debris offers a vital food source for songbirds foraging through the leaves.”
Our experts agree that the most environmentally friendly and least labor-intensive approach is to let the leaves fall where they are. “It’s the most natural method to support wildlife and maintain the ecosystem,” Phillips advises.
Nonetheless, they concede that not everyone is able to, or wishes to, take this route. Here are some strategies to maximize the advantages of leaves while maintaining an orderly appearance.
You can scatter a light layer of leaves over your grass to help enrich the soil. “They will decompose over the winter and into spring,” De Cooke notes. “But heavy heaps can smother and kill grass, particularly in moist areas.”
You might be tempted to mow or mulch the leaves on your lawn to accelerate their breakdown, but our experts advise against it. “It can harm or kill some insects that overwinter in the leaf litter,” Phillips states. “Only mow as a last resort, such as when HOA restrictions necessitate it.”
Collect or blow (using an electric blower) a layer of leaves, up to five inches thick, into your garden beds, where they will be a boon to your flowers. “Plants will have no issue growing through them the following spring,” De Cooke asserts.
Furthermore, pile leaves in circular heaps around trees and shrubs. “Expanding tree rings, ideally to the size of the leaf drip line, is one of the first strategies I employ in my designs,” Laskowski-Sholar notes. “To maintain a neat appearance, use a short barrier—such as a fence or edging—to contain the fallen leaves. This not only makes it clear to neighbors that it’s intentional but also serves as a haven for next year’s beneficial bugs.”
Have you heard of dead hedges? They are fences made from sticks, branches, and other yard debris, and they are a popular sustainable design element. A neat barrier like this is an excellent spot for excess leaves.
Alternatively, you can simply pile leaves in areas where grass isn’t needed. “Establish clear boundaries and deliberate shapes,” De Cooke suggests. “Mark out borders with stones or logs so that your leaf-covered areas look purposefully designed, not ignored.” The leaves will decompose and transform into perfect garden beds for the spring plantings.
For fire safety, ensure that dead hedges and leaf piles are at least five feet away from your home, fence, deck, and other structures. “Keeping piles slightly damp is another prudent measure,” De Cooke adds.
Your space will appear more inviting if pathways are clear of leaf piles. It will also prevent you and visitors from accidentally disturbing pests.
“In areas prone to ticks and mice, remove leaves from high-traffic paths,” Phillips advises. “And establish a buffer zone of at least six inches between leaves and any wooden structures to deter termites.”
Start managing leaves as soon as possible in the season to avoid amassing an overwhelming amount—and to avoid disturbing the pollinators the leaves are protecting.
“Many insects begin settling into the leaf litter shortly after it falls, particularly once temperatures consistently drop below 50 degrees,” De Cooke points out. “Disturbing the leaves after that can have adverse effects on their survival.”
And come spring, if leaf piles still linger, refrain from moving them immediately—say, into a compost pile. “It’s best to leave the leaf litter undisturbed throughout the winter until temperatures consistently warm, giving insects the chance to emerge,” Phillips suggests. These are the insects that will pollinate your new and improved garden beds!
