Can You Really Dethatch and Aerate at the Same Time?

Dethatching and Aerating are two different lawn maintenance processes that are used to deal with thatch build-up, which can hinder the growth of grass. Dethatching directly tackles the build-up of thatch, while aeration focuses on increasing airflow between the soil and the atmosphere. Many people wonder whether it is possible to dethatch and aerate at the same time. The answer is simple! 

It is possible to both dethatch and aerate your lawn at the same time, but one should be done before the other. While both of these processes target the build-up of thatch, dethatching targets it more directly and should be performed first. This will allow the subsequent aeration process to yield better results for your lawn in the long run. 

When you properly understand the processes of dethatching and aeration, you’ll better understand your lawn and when it’s in need of these processes. In this article, we’ll break down these two processes of maintaining your lawn in terms of their techniques and benefits and how these processes can work together to ensure your lawn is prospering! 

Your Guide to Dethatching 

In order to understand what the process of dethatching entails, you need to understand what thatch is in the first place. Thatch refers to a layer comprised of organic materials which typically amasses on lawns. A thin layer of thatch can act as a natural source of mulch and can be useful in maintaining the health of your lawn. 

Certain organic materials that will wind up on your lawn, such as grass clippings after mowing the grass or autumnal leaves, will decompose quickly. Certain materials, however, decompose at a slower rate. This can lead to a build-up of thatch, making it thicker. Some lawns may be more prone to the build-up of thatch than others. 

Dethatching is the process of removing part of the thatch in the grass. This will allow for better circulation of air within the soil, which will help maintain a healthy lawn. This process should be done during the first part of summer when your lawn is thriving. This will speed up the amount of time it takes for your lawn to recover from the dethatching process. 

Before you dethatch your grass yourself or hire a professional, you can perform a quick check to see if your lawn needs to be dethatched. To do this, you will want to take a shovel and dig up a small piece of your lawn. This will allow you to measure the depth of your lawn’s layer of thatch. If your lawn’s thatch exceeds 2 inches, it needs to be dethatched. 

Tools for Dethatching Lawn 

There are a few different methods and tools that can be used to dethatch lawns. If you’re planning on dethatching your lawn yourself instead of hiring a professional, you’ll need to use one of the following ways to successfully dethatch your lawn. 

Manual Rakes 

There are rakes designed to manually dethatch grass. These short-tined rakes are designed to dig into your lawn’s thatch and pull it up as you rake the lawn. This will be the most cost-effective option for dethatching your lawn at home. 

Power Rakes 

As the name suggests, these electrical rakes give you more power in dealing with grass that may be resistant to dethatching with a manual rake. Utilizing tines that rotate, these power rakes might cost more, but they make up for it in the precision and efficiency of its dethatching capabilities.  

Verticutters (Vertical Mowers) 

Lawnmowers move horizontally. Verticutters, on the other hand, cut vertically into your lawn. This process helps pull thatch layers to the surface. With settings to control how much thatch you remove, this option gives you the most control over the dethatching of your lawn – but it comes at a price. This option is great for lawns that are in desperate need of a makeover. 

The Advantages of Dethatching 

While you don’t need to dethatch your lawn as regularly as you mow it, it is an important process. There are numerous benefits to dethatching your lawn, including: 

  • A thatch layer that has grown too thick can hinder the growth of your lawn. Dethatching promotes the healthy growth of your lawn’s roots. 
  • Dethatching helps maintain your soil’s structure and ensures that there is sufficient access to water and that there’s enough air in the soil.  
  • The process of dethatching is a great way of incorporating fertilizer into your grass. Two birds with one stone!
  • Overall, dethatching is a key component in maintaining a healthy, beautiful lawn. 

Your Guide to Aerating 

It’s easy to get dethatching and aerating confused, as both have a common enemy: thatch. However, while the two processes share a common goal, they are not the same. As discussed above, thatch that has become too thick can hinder plant growth and make it harder for your lawn to breathe. While aerating will help deal with thatch, it can also tackle issues brought on my compacted soil. 

Many people have a very simplistic view of what lawn aeration entails, believing it is as simple as poking holes in your lawn. Your lawn is not a shoebox you’re poking holes in to transport a little critter! Depending on the level of aeration a lawn requires, the lawn may require the process of core aeration. 

Core aeration is performed by a machine, especially for larger areas of land or lawns that are more stubborn in terms of general aeration techniques. For those who require core aeration, tools are generally available to rent for this process from a variety of gardening-related outlets.

Like the process of dethatching, the best time to aerate your lawn is during your lawn’s peak growing season. This will ensure the fast recovery of your lawn, which will be looking better than ever. Due to this overlap in when these lawn-maintenance processes need to be performed, many people wonder if they can be performed at the same time. We’ll get into that in a moment! 

Tools for Aerating Lawn 

When it comes to aerating your lawn, these are the most common tools used! If you’re looking to aerate your grass yourself, you’ll need to invest in one of the following tools used for this process. 

Spike Aerator 

As the name suggests, this tool incorporates a spike, or a few, to help you aerate your lawn. This tool could utilize a singular tine or a forked design. These tools are used to poke holes in your lawn to better help it breathe. 

Plug Aerator 

As the name suggests, this tool removes a ‘plug’ or core from your grass in order to aerate the lawn. This helps break up areas of compacted soil better than a spike aerator, which could inadvertently result in compacted soil in certain areas.  

Due to this, this method is considered superior to the use of a spike aerator and will yield better results for your lawn. If you’ve observed that your lawn has an issue regarding the regulation of air in the soil for optimal growth, a plug aerator is a worthy investment. 

The Advantages of Aerating 

There are numerous benefits to aerating your lawn, including: 

  • Aerating your lawn improves the flow of air between the atmosphere and your soil. 
  • By aerating your lawn, you optimize your soil’s water uptake and reduce the run-off of water. 
  • By aerating your lawn, you will be giving it the ability to better withstand suboptimal growth conditions, such as severe heat. 
  • The process of aerating is a great way to enhance the breakdown of thatch without the need for necessarily needing to dethatch the lawn. 
  • You’ll get more benefits from your fertilizer uptake when you regularly aerate your lawn. This allows your grass’ roots to have access to the fertilizer, promoting stronger and healthier grass. 
  • Overall, aerating is a great lawn-maintenance practice that can yield many benefits for your lawn. 

Can You Dethatch and Aerate at the Same Time? 

As mentioned above, the best time to dethatch or aerate your lawn is during the peak growing season of your grass. This can vary between different types of summer or winter grass. However, no matter when the peak growing season for your grass is, these processes of dethatching and aerating can be performed concurrently. 

Thatch is a common enemy in terms of your lawn. Dethatching and aeration are two techniques of dealing with issues that can be brought about as a result of thatch. Thatch that has become too thick – that is to say, too much organic matter and debris has accumulated beneath the surface of your lawn – can hinder the airflow and water uptake of your lawn. 

When it comes down to aerating your lawn, you could also utilize a liquid aeration product designed to help manage the build-up of thatch. In addition to this, the techniques discussed earlier in this article can be used – namely the spike or plug aerators. You may even be able to rent lawn aeration equipment locally. 

For dethatching, there are a variety of tools that can be used at home without the need of hiring equipment or a professional. From manual to power rakes and verticutters, of course, there are many different tools that can be used to dethatch your lawn. You’ll need to pick the option that is best for you! Like with aeration equipment, you may be able to locally hire this equipment for use in your garden. 

While the general processes for dethatching and aerating your lawn were outlined earlier in this article, you may be wondering whether one should be done before the other. This is a very good consideration to keep in mind. While it is possible to do both of these processes at relatively the same time, garden experts suggest it is better to do one before the other. 

Lawn experts state that it is more beneficial for your lawn for you to first dethatch it and then subsequently aerate it. There are valid reasons to back up this logic of dethatching before aerating your lawn. 

By first dethatching your lawn, you literally dethatch your way to more successful aeration. While both these processes tackle the build-up of thatch, the dethatching process tackles thatch more directly. By first directly dealing with thatch that has built up, you will save more time and energy on the aeration of your lawn. 

The aeration techniques will be more successful after you have dethatched your lawn. If you were to aerate a lawn with a thick thatch, you’d only partially be targeting the problem of the thatch that has built-up over time. By dethatching first, you can better maintain your soil through means of aeration over time. 

All in all, dethatching and aerating your lawn are two crucial techniques of maintaining your lawn. Both of these processes can be performed at the same time or separately. When done together in the right order, the process can work together and complement one another. Many of the benefits of these processes overlap, though each has certain advantages that the other does not. Therefore, by doing both of these processes, you’re doing your due diligence! 

At the end of the day, you want to be sure you’re doing all you can to keep your lawn healthy. Once you understand how dethatching and aeration complement one another, you’ll better be able to utilize these methods in maintaining your lawn in the future. You’ll know the signs to look out for when thatch has gotten too thick and how to appropriately deal with it. 

Knowing When It’s The Right Time to Dethatch and Aerate Your Lawn 

As discussed earlier, you can dethatch and aerate your lawn at the same time, and that you should do this when it’s your lawn’s peak growing season. Allow us to break down how you can determine when the best time is to dethatch and aerate your grass! To put it plainly, it depends on the type of grass you have, which has a particular growth pattern. 

No matter which type of grass you have and when you dethatch your grass, there’s one thing you should remember! Thatch build-up can prevent your grass from receiving all the water it needs to thrive – you may even see physical signs of this. To ensure the successful dethatching of your lawn, you should be sure to water your lawn sufficiently two days prior to dethatching. 

Cool Season Grass

The rule of thumb for this type of grass is easy to remember: you simply do it at the start of the in-between seasons. Dethatching and aerating should be done in the early stages of spring and autumn. Doing this will ensure your grass recovers quickly from these processes. 

Warm Season Grass

For this type of grass, you’ll want to dethatch and aerate your lawn during the early stages of summer or the late stages of spring. This is when warm-season grass is at its peak growth. By dethatching and aerating at this point, you ensure that your lawn will receive sufficient weather in the weeks following to recover adequately. After this, your plant will be stronger and healthier!  


When it comes down to dethatching and aerating your lawn, we have broken down the mechanics of these two lawn-maintenance processes. When done correctly and in the right order, as discussed in this article, these processes can complement one another and work together to promote the growth and flourishing of your lawn. 

Dethatching should be performed first to directly deal with the issue of thatch that has built up. Following this, you should aerate your garden. Both of these processes should be performed when your grass is in its peak growing season, which will vary depending on your specific grass. 

For cool-season grasses, lawns should be tended to in terms of dethatching and aerating in the early stages of spring and autumn to ensure optimal recovery from these lawn maintenance processes. For warm-season grasses, the lawn should be tended to during the initial part of summer or in the later stages of spring. 


Recent Posts