Grass Clippings As Mulch Pros and Cons

Grass clippings have been used as mulch for a long time. The grass is cut and used as a cover to retain moisture in the soil. Grass clippings are mainly used as mulches because of their low cost, availability, and effectiveness. Grass clippings can be applied in either single or double layers to protect the soil from erosion, drought, evaporation, and also pests such as weeds. Grass clipping has many benefits but it also has some drawbacks too. Let’s discuss both its pros and cons below:

Grass Clippings As Mulch Pros and Cons

Grass clippings have a number of advantages and disadvantages which make them a controversial topic when it comes to their use as a mulching material. Some people consider them to be harmful while others acknowledge the benefits they can provide in certain circumstances because grass clippings can be a very helpful and natural product to use in gardening.

Although you should take the time to know about their drawbacks and the problems they often cause, it is important for you to know that using grass clippings as mulch around your plants and garden crops may help them grow well without destroying the environment because it is composed of organic matter.

Grass Clippings As Mulch Pros.

1. Grass Clippings Keep Water in Them.

If your area has relatively hot summers then you have most likely noticed that the ground is relatively dry and almost nothing grows in these patches of dry soil. Grass clippings as mulch can help with this problem. When grass clippings are used as mulch, the surface of the soil is much more likely to remain moist because it will not allow water from rain or irrigation run-offs to evaporate into the atmosphere. 

This effect is further enhanced if you place a layer of organic matter on top of the soil before adding the grass clippings mulch. The layer of organic matter will help to keep the moisture in and create a good environment for roots to grow. In addition, if you have ever added manure or compost to your garden, then you know that these materials also help to retain water in the soil.

Add 2-5 inches of grass clippings to the mixture if you want the grass clippings to keep their moisture. They’ll dry out quickly and won’t be able to retain any water if you only lay a thin layer of grass clippings on the ground.

2. Grass Clippings Can Keep the Soil Cool

In addition to retaining moisture, grass clippings can also help to keep your garden cooler. During the summer months when it is hot and dry outside, adding a layer of mulch on top of your soil will block sunlight from hitting the ground directly. If you notice that some areas in your garden are hotter than others, grass clippings can be used as mulch to reduce the temperature of these patches.

The same effect occurs if you place a layer of organic matter on top of your soil before applying grass clippings as mulch. Organic matter acts like a blanket and blocks sunlight from reaching the surface below it. It also helps to retain moisture and keep the soil cool.

3. Vegetables may be grown in grass clippings.

Yes, you read that correctly! You can actually produce vegetables from lawn clippings. All you have to do is place a layer of fresh grass clippings on the soil, and then plant your seeds directly into the mulch. The grass clippings will help to retain moisture and keep the soil cool while the plants grow.

By the end of summer, your plants will be ready to harvest. This is a great way to turn waste into something useful.

4. Mulch from grass clippings contains a wealth of nutrients.

When grass clippings decompose in the soil, they release nitrogen and other nutrients into it. This makes them a great choice for mulch even if you do not want to use fresh grass clippings as mulch. Dried-up lawn cuttings will be able to provide enough nutrients for your plants while also retaining moisture at the same time.

If you want to use fresh grass clippings as mulch, make sure they are dry first because moist grass has a tendency to rot rather quickly. You can place them in the sun or let them sit on your lawn for several hours before applying them to your garden bed.

5. Grass Clippings Mulch Can Suppress Weeds.

One of the best benefits of using grass clippings as mulch is that they can help to suppress weeds from growing. When you place a layer of fresh or dry grass clippings on top of your garden bed, it will create a barrier between the soil and the light. This will prevent weed seeds from germinating and growing.

In addition, the layer of mulch will also help to keep the soil moist and cool, which is not a favorable environment for weeds to grow. If you already have weeds in your garden bed, adding a layer of grass clippings as mulch will help to choke them.

6. Grass Clippings Mulch Can Increase Soil Microorganisms.

One of the benefits of using grass clipping as mulch is that it can increase the number of soil microorganisms. This is beneficial because these organisms play an important role in breaking down organic matter and releasing nutrients for plants to use. They also help to improve the texture of the soil and make it more hospitable for plant growth.

7. Grass clippings do not sink in water.

Another benefit of using grass clipping as mulch is that it does not float on water. Other types of mulches like wood chips, leaves, and straw can get carried away by the current when they are dropped in a body of water which means you have to replace them frequently. Grass clippings do not cause this problem because there is no risk of them getting swept away.

8. Growing Seeds In Grass Clippings Mulch.

The use of grass clippings as mulch may be utilized to grow seeds. When you want to start a garden, soil preparation is one of the most important things that need attention. Grass clipping provides an excellent medium for growing new plants because they are rich in organic matter and nutrients.

9. Grass Clippings Mulch Protects From Soil Erosion.

Mulch made from grass clippings is another way to keep the soil intact. It can also prevent erosion. Soil that is exposed to water and wind loses its ability to hold nutrients, aggregate structure, and organic matter which makes it harder for plants to grow roots in them. Grass clipping protects your soil from this problem by keeping it together and loose enough at the same time.

10. Grass Clippings Protect The Soil From Drying Up.

Grass clippings act as mulch and protect the soil from drying up during hot summer months. When you use grass clipping for this purpose, it acts as a water reservoir in dry weather because it can absorb several times their weight of moisture when wet before becoming saturated. This keeps your plants hydrated all day long which is beneficial to their growth.

11. Grass Clippings Mulch Makes Your Yard Look, Greener And Fresher.

One of the most important benefits of using grass clippings as mulch is that it makes your yard look greener and fresher because they contain a high amount of nitrogen which is a nutrient required for the green color in plants, vegetables, and shrubs. They also act as a fertilizer to your soil because they decompose into nutrients that plants need for their growth.

12. Grass Clippings Mulch Can Be Used In Garden Beds.

Grass clippings might be utilized in flower pots and garden beds to maintain plants healthy. They act like a blanket to the soil and provide it with insulation against the intense sun that can cause compacting of soil particles, especially in clay soils. This benefit helps your plants get their nutrients faster which helps them grow quickly.

13. Grass Clippings Mulch Provides Food For Earthworms And Other Beneficial Insects.

The use of grass clipping as mulch provides food for earthworms and other beneficial insects like beetles, spiders flies, moths, ladybugs. These insects help in the natural recycling process of organic waste that can also protect your plants against pests and diseases while improving soil fertility by decomposing dead plant matter into nutrients that are beneficial to plants.

14. Grass Clippings Mulch Keeps The Soil Warm And Humid.

Grass clipping mulch keeps the soil warm and humid all day long which is beneficial for plant growth. This helps in the healthy growth of plants and controls water loss from soil because it keeps the soil moist for a longer period.

15. Grass Clippings Are Free Resource.

Grass clippings are free which means you do not have to buy mulch for your garden. You can collect grass clippings from different places like lawns, parks public areas, or vacant lots where they are available in large quantities. However, you should not use grass clipping from lawns where chemicals like weed killers and pesticides have been used as they can affect the quality of the soil. You should also make your own compost by recycling or reusing them instead of putting them in the trash because they will produce methane gas which contributes to pollution if disposed of in landfills.

Grass Clippings As Mulch Cons.

1. Grass Clippings Must Be Topped Daily Otherwise, They Will Turn Into A Muddy Slop.

Grass clippings will decompose quickly if they are not kept in the shade after being cut or topped off. If they are exposed to too much sun while they are fresh, grass clippings will start to cook or decompose quickly which turns them into a stinky, slimy, and smelly mess. This is very important for homeowners who are using grass clipping as mulch to their flower beds because this will make your garden look like an eyesore in no time if you do not pick up the clippings. If you fail to top off your grass clippings in the morning, you will be stuck in a rut because they can grow into tall grasses that block your pathways and makes it difficult for you to mow your lawn.

2. Wet Clippings Are Unattractive And Smelly.

Wet grass clippings can turn into an unattractive and smelly mess if they are not dried quickly after they get rained on or you do not pick them up in time. Using wet grass clipping mulch will attract pests like mosquitoes which can make your problem worse. Wet grass clipping mulch can also attract rats which are known to spread diseases.

3. Grass Clippings Can Attract Insects Like Ants And Slugs.

Grass clippings act like a magnet for insects like ants, snails, and slugs because they act as food sources for them. These pests can nest in your grass clippings which can make the problem worse.

Grass clipping mulch also attracts animals and bugs that could be harmful to plants. You should keep them away from your garden so they don’t eat your plants or destroy your flowers, vegetables, and shrubs while you use grass clippings as mulch. You can collect them in a bag or keep them out of sight to avoid these problems.

4. Pesticides may be present in grass clippings mulch.

Grass clippings mulch could contain weed killers or pesticides that are still in solid or liquid form when applied to the soil. This can be harmful to plants and potentially toxic if consumed by people, pets, livestock, and other animals. You should let grass clippings dry and decompose for at least six months or one year before putting them as mulch in your garden.

5. Mulched Grass Clippings Can Stain Your Deck And Patio.

Grass clipping mulch can stain the surfaces of patios and decks because they sometimes contain chemicals like weed killers, fertilizers, or pesticides. You should avoid putting grass clippings mulch near your patio or deck because these chemicals will corrode their surface over time which causes the color to fade away. They may even damage wood decks so you should use caution when using grass clippings as mulch near them.

6. Grass Clipping Mulch Can Cause Odors In Your Compost Bin.

Grass clippings used as mulch can contribute to the unpleasant smell of the compost bin if they are not turned regularly which makes them decompose quickly. If you don’t turn your compost bin often, this will make it produce a very offensive and unpleasant odor when you’re ready to use it. This can be very problematic for homeowners who are using compost to fertilize their plants and crops because you will need a constant supply of usable compost which this problem will inevitably cause problems in the long run.

7. Grass Clippings Can Be Unsightly And Causing An Overgrowth Of Weeds.

Grass clippings that are left to lay on the surface of your lawn for a long period of time can cause an overgrowth of weeds which is a problem if you don’t want to kill them by using weed killer sprays or chemicals.

8. Lawn Mower Clippings Can Be Toxic To Your Garden And Landscape Plants.

Lawn clippings are full of nitrates, minerals, and salts which are known to be toxic for gardens and landscape plants when used as mulch. The presence of these chemicals in grass clippings mulch can kill the roots of your garden and landscape plants which can cause them to wilt, die, or become unattractive after they get rained on. It is also known that using lawn clippings mulch in ornamental gardens may kill the major parts of the plant which will lead it to die over time.

9. Grass Clippings Are Not Suitable To Use As Mulch On Bermudagrass.

Mulch is not suitable for bermudagrass. It needs to be mowed all year. If it dies back, then you need to cut it back in the spring. If you mulch with grass clippings, it will die back. If the area is getting water under the grass clippings, they can cause root rot problems. You also need to know that bermudagrass needs to be cut every 7 days if it has not rained recently. This means that you should avoid grass-clipping mulch because it could kill your grass.

10. Grass Clippings Can Be Difficult To Maintain And Collect.

Because grass clippings are inclined to drift into your fence, driveway, and sidewalks if you don’t utilize a bagger or mulching mower, they may be tough to keep and gather. You can use a rake to collect grass clippings for composting or to keep them off of your sidewalk and driveway. You should keep them contained in your lawn to prevent them from blowing away.


Grass Clippings As Mulch have some positive and negative aspects. So, if you’re looking for a cost-effective and environmentally friendly way to protect your soil from erosion and pests, clippings might be the solution. But before adding them to your garden beds or mulching around trees or bushes in your yard, consider their pros and cons so that you can make an informed decision about whether they are right for you.