It’s late fall here and the leaves are mostly off the trees, scattered across lawns and piled up against fences and walls.
Most people are raking them up, putting them in those big brown paper bags, and leaving them at the curb for the Department of Public Works to pick up and cart off. That’s the routine that we’ve all be trained to follow — make the yard neat and cart all the leaves off to somewhere else.
It’s a bad idea. You and carting off one of the best fertilizers you can get for your garden and your lawn. And whoever invented those badly-designed bags is making a fortune off you. You can find better things to spend that money on.
Nature has its own clever way of dealing with leaves, but you can do a few things to make it work even better. All you need is a little help from your lawnmower, and maybe your rototiller if you have one.
Why leave the leaves in your yard? Think about the last time you were in the woods. Every fall it’s blanketed with fallen leaves, pine needles and plant debris. They provide two essential assets to the forest — a protective ground cover and a fertilizer base. That blanket of leaves protects plant roots from the dehydrating effect of cold. They also gradually break down into an excellent source of compost for trees and plants. Pound for pound, leaves are actually more nutritional to your plants than manure. They contain not only the three essential compounds — nitrogen, phosphorus and potassium — but also a host of other minerals that should get back into your soil.
Chop them up
The natural process of leaf decomposition is very slow. It takes months, and in some cases, years. You can speed it up and make it far more efficient with your lawnmower. You may want to start by raking your leaves onto your lawn, then start mowing from the outer edges, constantly directing the leaves inward. Go over them slowly, you’ll want the mower to really chop them up good. Go over them a few times.
You’ll be astonished by what’s left. That huge pile of leaves is now reduced down to a mere shadow of its former self. What remains will be about 1/10th to 1/16th the size of the initial pile that you started with, and most of the tiny shreds are now implanted into your lawn. You can use a rake to evenly spread around the tiny pile that remains. This may look a little unsightly compared to the guy next door with the cleanly-raked lawn, but those leaf fragments will be gone by the time the grass starts thriving in the spring. Earthworms and other natural processes will chew them up and convert them into fertilizer.
And next spring, when the guy next door is paying $50 to $150 for chemical fertilizers and sweating profusely while he’s spreading them on his lawn, you’ll be swinging in your hammock with a great-looking lawn underneath you.
The other thing you may want to do with your leaves is transfer them into your garden, chop them up and then rototill them in. This is an ideal fertilizer that will get your soil in top shape for the spring. You’ll want to apply some lime as well, as the leaves are acidic. One 50lb bag per 1,000 square feet of garden space is ample. A bag of lime should cost you about $5.
My usual thing is to rake the leaves onto the lawn, then mow them with my riding tractor. This also cuts the lawn and introduces grass clippings into the mix, which are very high in nitrogen — they’re like gasoline for your composting fire. Then I put the lawn sweeper to work. These sweepers are definitely worth the money if you have a lawn large enough to merit using a lawn tractor. They cost about $150 to $350 depending on size and quality, and the better ones have a great dumptruck-like feature that allows you to dump the load without having to dismount from the tractor and jigger around with the sweeper. They are a fantastic labor saver, well worth the money. Be sure to get a good one, don’t cheap out, because they take a beating.
I attach the sweeper to the tractor and run over the lawn, picking up the chopped up leaves and grass clippings. Then I dump them on the garden, spread the piles out, and rototill them in. Sounds like a lot of work? It kind of is. But it’s worth it to use those leaves as your fall fertilizer.
John Macone operates a small organic farmstand in Amesbury, Massachusetts. Like his Facebook page at Farmer John’s Homegrown Foods.