Leave the Leaves...or Not? (2024)

Leave the Leaves...or Not? (1)

This past fall there was a lot of talk about “leaving leaves” in the garden not only in gardening media circles, but in mainstream media too. Any advice that advocates skipping yard chores is sure to go viral, but let’s take a closer look so that you understand exactly where and why this is not bad advice, and where it’s a terrible idea.

The National Wildlife Association’s blog post was written a year ago, but went viral this fall. The advice, while not actually wrong, was a little unclear.

Yes, leaving fallen leaves to decompose does return valuable nutrients to the soil, provides habitat for lots of important and valuable insect species over winter, and acts as a natural mulch. Unfortunately, the article was not exceedingly clear about one place you do NOT want to just leave your leaves: your lawn.

The only way to leave the leaves on your lawn is to chop them finely with a mulching mower or a leaf shredder, or shred them in a trash can with a string trimmer, then return them to the lawn. (We describe how to do that in this newsletter article that we also wrote a year ago that didn’t go viral…oh well) You cannot leave a layer of fallen leaves as-is on your lawn…unless you want to have to do a lot of lawn repair next year. Layers of leaves block sunlight and trap excess moisture against the lawn, resulting in bare patches come spring.

It’s also a good idea to keep layers of leaves off of beds of fall- and winter-interest plantings like pansies for the same reason. A thick layer blocks sun and risks disease in wet weather. Rule of thumb: if you can’t see the plants underneath, the leaves are probably going to cause a problem.

Yet there are plenty of places where you can leave the leaves. You can leave leaves in wooded areas, on mulched areas, under shrubs and around perennials as long as you think of them like mulch: not built up too thickly (3-4” at most” and not piled up against stems and trunks. (You should probably think twice about thick layers of leaves if you have vole problems-voles can burrow under the leaves and wreak havoc in your garden over the winter.)

The main argument for removing leaves from everywhere but the lawn is purely aesthetic-most people prefer the clean look of traditional mulches. But leaving leaves and mulching over top of them in spring is an acceptable and ecologically safe option.

More from New Garden Notes

Leave the Leaves...or Not? (2024)

FAQs

Should you rake leaves yes or no? ›

The Benefits of Raking Leaves

While leaving fallen leaves in their natural state may help your property's ecosystem thrive, it may not be ideal if your goal is a well-kept lawn. A thick layer of leaves can starve your grass of sunlight and cause it to die. Lingering leaves can also stain walkways and decks.

What does "leave the leaves" mean? ›

Find out why we're practicing “Leaving the Leaves” at the Gardens this Fall. What Do We Mean? When we say “Leave the Leaves,” it means precisely that- not raking or blowing leaves out of your yard and flower beds or running leaves through a mulching mower to help them break down faster.

What are the benefits of leaving the leaves? ›

The benefits of leaving leaves on your lawn

National Wildlife Federation naturalist David Mizejewski advises leaving the leaves on your lawn. "Fallen leaves offer a double benefit," Mizejewski said in a blog post. "Leaves form a natural mulch that helps suppress weeds and fertilizes the soil as it breaks down.

Should I mulch leaves or leave them? ›

Mulch them back into your lawn or garden. Mulching leaves back into your lawn will provide a natural source of nutrients that will improve the growth of your lawn. Save time and hassle of raking leaves by simply mulching them into your lawn, improving your lawn's growth and health.

What happens if I don't rake leaves? ›

Leaves have nutrients, which can be recycled into your lawn. The concern is if your leaf layer is very thick and will smother the grass. If you have just a few leaves, such as 20 percent of the lawn covered, you can just ignore them. They will blow around, settle in, and break down on their own.

Is it better to leave leaves on the lawn over winter? ›

To best support wildlife and soil health, experts say leaves should be left where they fall. A hearty leaf cover provides a habitat during the cold winter months for critical pollinating species such as bees, butterflies and moths.

Which is correct, leave or leaves? ›

As a noun, which is obviously the subject of your question since you refer to the "singular" form, "leaves" is the irregular plural of singular "leaf." But "leaves" can also be a verb, namely the third person singular present indicative of "to leave," as in "She leaves at noon" and "He always leaves leaves in his yard" ...

Is leave and leaves the same? ›

Leaves is the plural form of leaf, and the third person singular form of leave.

What is the deeper meaning of leaves? ›

Leaves often represent nature in the most literal sense because they're a part of it, but they also symbolize growth and rebirth. Popular sayings include “turning over a new leaf” and “taking a leaf from someone else's book,” both expressions for spiritual growth.

What's the best way to rake leaves? ›

Tips from the Experts
  1. Rake with the wind and rake downhill. ...
  2. Using a tarp will help save your back. ...
  3. Stomp on piles of leaves if you can't finish. ...
  4. As you rake, pull the leaves toward you. ...
  5. Divide your lawn into sections. ...
  6. Mow your lawn until the grass has stopped growing for the season.

What do leaves tell us? ›

If the leaves of your plant are growing very slowly or not growing at all, then this is a sign that the plant needs more water or more fertilizer. If a plant has not yet produced buds but is not being watered or fertilized enough, then the buds will take a much longer time to grow – or they may not grow at all.

Why you should leave leaves alone? ›

It enhances the health of the lawn. The shredded/mulched leaves fall between the grass blades and and decompose, enriching the topsoil.

Do leaves help the grass? ›

Not only will the leaves provide excellent nitrogen and organic matter that your winter grass will love, it'll: protect root systems; preserve soil moisture; and. the lawn mower will help cut weeds, providing critical light for your grass.

Can I mow my leaves instead of raking? ›

Wet leaves won't chop well with a mower, and they tend to clog rakes and leaf vacuums. You can skip raking completely by mowing over leaves and chopping them into small pieces. If you plan to compost leaves, chopping them first speeds up decomposition. Use a grass catcher to gather leaves as you mow over them.

Can leaves replace mulch? ›

However, you can't use whole leaves as mulch, as they will create a mat that smothers plant roots. Instead, shred leaves to make a good quality, inexpensive mulch for your landscape.

Is it better for the environment to not rake leaves? ›

The leaves will serve as mulch and can protect the soil around your trees, shrubs, or garden. Research done at Michigan State actually shows that leaving the leaves on your yard in such a manner not only does your lawn no harm; it can actually impede weed growth.

Is it better to pick up leaves or let them fall naturally? ›

Often, however, it's best to leave your leaves in place. Leaf litter contributes to soil health, and it's a critically important habitat in the life cycles of insects like bees, butterflies, and fireflies, as well as larger animals like salamanders and toads.

Is it OK to rake leaves in the street? ›

Loose leaf piles should be placed behind the curb or edge of pavement without blocking the sidewalk. Do not rake or blow leaves into the street as they present a safety hazard and a flooding concern when leaves are washed into storm drains.

Should I wait until all the leaves fall to rake? ›

Many people like to keep up with leaves by raking as they fall, while other homeowners wait until all the leaves have fallen to the ground before raking. Regardless of your preferred schedule, wait until the leaves are dry to make them easier to rake.

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