What to Do with Grass Clippings: 3 Ways to Put Them to Use

2024-04-06
What to Do with Grass Clippings: 3 Ways to Put Them to Use

If mowing, collecting, and discarding clippings is your routine, it’s time to change your lawn care practices. What to do with grass clippings instead? Clippings from healthy turf grass are loaded with nutrients that are useful in vegetable gardens and perennial borders, a compost pile, and even the lawn itself. Here are three easy ways to use grass clippings to give your lawn and garden a boost.

1. Leave Clippings on the Lawn

Let grass clippings fall where they are cut, returning valuable nutrients to the soil. Grass clippings consist of water and easy-to-decompose compounds. They filter into the turf and break down in a few weeks, adding nitrogen and other nutrients to the soil in the process.

Homeowners who bag and discard clippings and then fertilize their lawns find that the turf requires notably less fertilizer when clippings are left in place. Be mindful of fertilizer quantities, especially if you previously were removing clippings, and are now leaving them on the lawn. Overfertilization can burn grass and cause a multitude of turf problems, so plan to reduce fertilizer rates accordingly.

Lawn-friendly clippings are short; clippings that are 1 inch long or less decompose best in the grass and soil profile. Cut your lawn regularly to produce consistently short clippings. Mow when the grass is dry to prevent the clippings from clumping on top of the grass. Piles of wet grass clippings take longer to decompose, might harm the grass growing below them, and are unsightly.

Note that if your lawn has disease issues, such as leaf spot, rust, or dollar spot, leaving clippings is not a good idea. Instead, bag them for yard waste pick up or collect and bury the diseased clippings in an out-of-the-way place in the landscape. They will decompose, and any disease spores on the leaves wont be able to cause new infections.

Myth: Grass Clippings Cause Thatch

You may have heard that grass clippings can pile up on the soil surface to create a lawn-destructive layer of thatch. This rumor is false—grass clippings decompose too fast to build up on the soil surface. Thatch is caused by excessive nitrogen fertilization, infrequent mowing, vigorous grass varieties, and unhealthy soil.

2. Use Grass Clippings as Mulch

Another thing you can do with grass clippings is use them as mulch that will help reduce weeds, conserve soil moisture, and moderate soil temperature. Grass clippings make excellent mulch around all types of plants. They break down quickly, improving the nutrient content and structure of the soil as they decompose. Because they break down so fast, be prepared to spread another layer of grass-clipping mulch about eight weeks after the first application to provide continued weed suppression.

Vegetable gardens are great places to use grass clippings as mulch. The fine mulch is easy to spread around young, tender seedlings. It breaks down throughout the season, improving the soil structure and creating an excellent seedbed for next year’s vegetable garden.

Spread a 2-inch-thick layer of dry grass clippings over the soil surface. A thicker layer can limit water and oxygen from getting into the soil.

Don’t use clippings from a lawn recently treated with a broadleaf herbicide as mulch. The herbicide may leach from the grass blades and harm nearby plants.  

3. Add Grass Clippings to Compost

When combined with brown material, such as dried leaves, stems, and plant parts, grass clippings turn into nutrient-rich compost. Also known as black gold, compost is valuable all over the landscape. Improve soil structure by mixing a 2-inch-thick layer of compost into garden soil. Suppress weeds by spreading a 2-inch-thick layer of compost around perennials in spring. The compost will also add nutrients that help feed your plants through the season.

Make a simple compost pile by alternating layers of green material—grass clippings—with layers of brown material. Maintain equal amounts of brown and green additives to keep a compost pile healthy and productive. Speed up decomposition by building the pile in a full sun location and turning it every week or so. Because most home compost bins don't reach a high enough temperature to kill pathogens or seeds, don't add grass clippings from a diseased or weedy lawn.

Aim to mow the grass regularly, cutting off just an inch or so of grass to create clippings that will break down quickly in your compost bin.

Related Article

How to Plant and Grow Rose of Jericho

How to Plant and Grow Rose of Jericho

Rose of Jericho is a unique houseplant that can survive with minimal water, making it a great option for travelers and forgetful gardeners.
21 Adorably Petite Plants for Fairy Gardens

21 Adorably Petite Plants for Fairy Gardens

Color is always nice, but scale is everything when choosing miniature garden plants. Peruse our favorite picks for fairy gardens and terrariums.
13 Colorful Nectar Plants for Pollinators

13 Colorful Nectar Plants for Pollinators

Create a gorgeous, pollinator-friendly garden by including these nectar-rich plants.
Is Coleus a Perennial or Annual? Here's How to Grow It Both Ways

Is Coleus a Perennial or Annual? Here's How to Grow It Both Ways

Is coleus a perennial that comes back every year? That depends on where you live and how you care for it. Use these tips to enjoy coleus as a colorful perennial or annual plant.
How to Plant and Grow Ranunculus

How to Plant and Grow Ranunculus

Ranunculus are favorite flowers for weddings, arrangements, and gardens. Here's how to plant and grow ranunculus.
How to Plant and Grow Glossy Abelia

How to Plant and Grow Glossy Abelia

This guide on how to grow glossy abelia includes essential planting and care tips such watering, fertilizing, and pruning needs. You'll also find popular types of abelia to grow and pretty companion plants for this flowering shrub.
Hydrangeas Not Blooming? 7 Reasons Why and How to Fix the Problem

Hydrangeas Not Blooming? 7 Reasons Why and How to Fix the Problem

Hydrangeas not blooming can be a frustrating problem for gardeners. These straightforward tips will promote tons of long-lasting flowers.
10 Best Sweet Potato Companion Plants for Larger Harvests

10 Best Sweet Potato Companion Plants for Larger Harvests

Mix and match these sweet potato companion plants in your vegetable beds for pest-free crops and easier gardening.
How to Harvest Mint, Dry Mint, and Store Mint

How to Harvest Mint, Dry Mint, and Store Mint

Learn how to harvest mint to keep plants more manageable and gather fresh mint leaves for cooking, drying, and storing!
How and When to Harvest Radishes at Their Peak

How and When to Harvest Radishes at Their Peak

These easy-to-follow tips will help you figure out how and when to harvest radishes for the best flavor and size. Plus, get troubleshooting advice if your radish roots aren't developing properly.
How and When to Start Tomato Seeds Indoors

How and When to Start Tomato Seeds Indoors

Find out exactly how and when to start tomato seeds indoors so they'll be ready to transplant into your garden in spring.
Tillers vs. Cultivators: How to Choose the Right One for Your Gardening Tasks

Tillers vs. Cultivators: How to Choose the Right One for Your Gardening Tasks

Learn the differences between tillers and cultivators and the tasks they're best suited for.
Here’s What Not to Put in Compost to Avoid a Contaminated Bin

Here’s What Not to Put in Compost to Avoid a Contaminated Bin

Composting is a simple way to turn your kitchen and yard waste into food for your garden. But some of these items should never be in compost.
Easy Lawn Repair for Patchy Grass Using Seed or Sod

Easy Lawn Repair for Patchy Grass Using Seed or Sod

With a bit of grass seed or sod, lawn repair is easy, and you’ll soon have a lush green carpet again.
What Are the Tiny White Bugs on Your Plants? 4 Common Pests They Could Be

What Are the Tiny White Bugs on Your Plants? 4 Common Pests They Could Be

Tiny white bugs on plants in your home or outdoors can be a big problem. Learn how to identify and get rid of them with this guide.
How to Spot 5 Common Plant Diseases and Keep Your Garden Healthy

How to Spot 5 Common Plant Diseases and Keep Your Garden Healthy

Protect your plants from the most common diseases. Learn to recognize the symptoms and how to prevent these diseases in the first place.
How to Landscape with Rocks and Stones in Your Yard

How to Landscape with Rocks and Stones in Your Yard

Decorative rocks and stones add another element of nature to your yard, whether you grow hydrangeas, tulips, or cacti.
Landscape Planning Tips From Start to Finish for a Perfect Yard

Landscape Planning Tips From Start to Finish for a Perfect Yard

Even if you're a beginner, these simple landscape planning tips will take the mystery out of designing your yard's ideal layout.
10 Native Alternatives to Invasive Plants Growing in Your Garden

10 Native Alternatives to Invasive Plants Growing in Your Garden

Use native plants in your garden instead of popular invasive landscape plants: See a list of common invasive plants, plus native alternatives to plant instead.
Your Seasonal Lawn-Care Schedule for the Midwest

Your Seasonal Lawn-Care Schedule for the Midwest

Use our lawn-care schedule to help you maintain a beautiful yard all year long. You'll learn exactly when to mow, aerate, fertilize, and overseed.