Aerating your lawn is something you should consider doing if you’re dealing with very compacted soil. This soil prevents oxygen, water, and nutrients from being able to reach the roots of the grass you’re trying to plant. One of the easiest ways of aerating your lawn is with the use of a liquid lawn aerator.
What’s a liquid lawn aerator? This is a product that you mix with water and spray over your garden with a sprayer. Its liquid consistency enables it to better penetrate the soil and it’s easier to aerate your soil than if you have to pull out plugs of soil.
If you’ve decided that you want to use a liquid aerator on your lawn, you might not be sure which one is the best. Here’s our guide to the most effective liquid lawn aerators and how they work.
Best Overall: LawnStar
By loosening the soil with this LawnStar liquid lawn product, you can improve the drainage of your soil and increase water uptake by the grassroots.
This is a hyper-concentrated formulation that’s designed to loosen and condition your compacted soil so it can be healthier to encourage grass growth. It’s value for money because one bottle can treat up to 30,000 square feet, so it will go a long way.
After you apply it to your lawn, you have to water it for about 20 to 30 minutes, then you’re done. Soil aeration can therefore fit easily into your lawn maintenance schedule.
For increased convenience, you can apply this liquid aerator with a garden sprayer or one-hose sprayer, so it can save you money because you won’t have to purchase tools to be able to use it.
This best liquid lawn aerator can work well to prevent the hassle of doing core aeration in your garden, which can result in unsightly aeration pellets in your lawn. Its therefore a quick and easy product that doesn’t require any after-care tips.
- Weight: 2.31 lbs
- Area Treated: 30,000 sq ft
- Time to work: A few weeks
Runner Up: Simple Lawn Solutions
What’s great about it is that it encourages the downward movement of water so that you improve the vertical drainage of your soil. This enables your grassroots to better take up water.
This best liquid lawn aerator will soften your soil with its concentrated liquid solution. It also goes a long way – just 32 ounces will cover up to 32,000 square feet, so it’s worth purchasing if you want to transform your lawn.
It comes with many other benefits to improve your lawn, such as improving liquid and water penetration in your soil and preventing the formation of standing water. It can also be used with any grass fertilizer nutrient program, so it easily forms part of a healthy lawn maintenance plan.
You can use it on all types of grass, such as bermuda, bahia, Kentucky bluegrass, St. Augustine, fescue grass, and other types of popular grasses. After applying this liquid aerator to your lawn, you should water it for up to 20 minutes.
- Weight: 2 lbs
- Area Treated: 32,000 sq ft
- Time to work: 3-4 weeks
Alternative: Covington Naturals
It helps to encourage better water penetration and movement in the soil, and it helps the grass to absorb more nutrients, oxygen, and water. What sets it apart from other liquid aerators is that it’s OMRI listed, so it’s eco-friendly and safe for use on plants and weeds.
It’s also safe for use around kids and pets, which will make you feel more comfortable using it on your property.
This Covington liquid aerator contains a blend of essential nutrients, minerals, amino acids, humic acids, and beneficial microbes to ensure your soil can be healthy.
It also contains carbohydrates that fuel microbes and give your plants or grass extra energy. These contribute to encouraging healthier soil and grass to grow, so this product achieves more than just loosening up your soil.
This is a great liquid aerator that achieves more than one task. It softens your soil and makes it less compacted naturally, but it also boosts your grass with the nutrition it needs, so it works double duty to improve your lawn in the short- and long-term future.
- Weight: 2 lbs
- Area Treated: 12,000 sq ft up to 1 ac
- Time to work: Few weeks
Alternative: GS Plant Foods
It’s a quality product that can be used on all grass types and compacted soil to give your lawn a new lease on life. It prevents standing water and ensures that grass roots can get all the nutrients they need. So, what makes it different from other products on the market?
For starters, it’s versatile. Not only can you use it on a variety of grass types, but you can also use it for different lawns. If you’re planting new grass in your lawn, installing sod or grass plugs, or you’re reseeding your current lawn, this product will help you to make your grass look beautifully green and grow healthily.
This Soft Soil liquid soil aerator & lawn treatment is really easy to apply. It’s organically formulated so that it’s safe for your grass, kids, and pets, and to use it you just have to mix together four ounces of the product with a gallon of water.
You can also apply it with the use of any type of sprayer, which further makes it convenient to own. You’ll be able to use it immediately without first having to purchase other tools or equipment.
- Weight: 8.5 lbs
- Area Treated: 500 sq ft
- Time to work: Few weeks
Alternative: Nature’s Lawn & Garden
Unlike some other liquid aerators on the market, it can be used to treat hard clay soils. It’s also valuable to use on a variety of grasses, gardens, trees, and both indoor as well as outdoor plants. It also encourages earthworm activity in the soil!
It’s interestingly made with seaweed, that’s healthy and safe for use around pets and kids; it’s also safe for your grass as well as pollinators in your garden, so you won’t disrupt the environment in any way.
This Nature’s Lawn aerator prevents standing water, promotes soil drainage, increases nutrient availability to the grass’s roots, and is easy to use.
This is the ideal product to purchase if you want to loosen compacted or hardpan soil, and improve your soil drainage. If you don’t treat these problems in your lawn, you won’t be able to grow healthy grass.
What you’ll love about this product is that, unlike some other liquid aerators on the market, it comes with a nozzle and sprayer attached so that you just connect your hose to it before use. It couldn’t be easier to aerate your lawn without any hassle.
- Weight: 2.42 lbs
- Area Treated: 16,000 sq ft
- Time to work: Few weeks
Liquid Lawn Aerator FAQ
Now that you’ve read about our best liquid aeration products, you might be ready to purchase a liquid lawn aerator. Before you do, it helps to know what to expect from it and if it’s even worth purchasing one. Read on to discover what you need to know about it.
How safe are liquid lawn aerators?
Liquid lawn aerators are mixed with water so that you can apply them to your soil. They work to break down clay particles in the soil to open it up enough to encourage the growth of healthy grass, but the good thing about them is that they’re mostly gentle on your soil.
Even though they can be highly concentrated, you can use them without worrying about stressing your grass, plants, or shrubs.
Choosing a liquid aerator that’s made with biodegradable, natural ingredients, further makes the product safe to use around kids and pets. This also means that it will protect your grass so that you don’t have to risk damaging it.
How long does liquid aeration take to work?
After you’ve applied a liquid aerator to your lawn, you will have to wait a few weeks for it to work. It can take between 45 and 60 days for the ingredients in liquid aerator products to start to make difference in the quality of your soil and grass.
However, as we’ve seen in our best liquid lawn aerator reviews, some products can start to show results within as little as a few days, so it really does depend on the type of product that you purchase.
Note that you might have to reapply the liquid aerator a few times before you see the results you want. This also ensures that the results can be maintained.
Pro tip: you should choose a liquid aerator that provides your lawn with healthy ingredients, such as amino acids, that it needs to grow and which can help to condition the soil.
Is liquid aerator just soap?
You might have heard people say that liquid aerators are really just soap. There is some truth to this because a liquid aerator will contain a fortified liquid solution that has ammonium lauryl sulfate – this is an ingredient that you’ll commonly find in regular soap.
While it works as a cleaning and foaming agent, it also breaks down dense particles that are found in the soil so that they can be loosened.
However, this is not the only ingredient in quality liquid aerators on the market. They contain a variety of ingredients to nourish and loosen the soil so that it can encourage the growth of plants and grass.
For example, some natural liquid lawn aerators contain seaweed and humic acid. This acid is a group of molecules that bind to plant roots so that they can receive nutrients, oxygen, and water.
Is liquid aeration better than core aeration?
There are different reasons why liquid aeration can be said to be better than core aeration, but there are also reasons why core aeration can be more effective.
Liquid aeration is said to be more effective than core aeration because it’s less intensive. It doesn’t require the removal of soil plugs from the ground, so you won’t be left with unsightly messes on the ground afterward.
It’s also easier to apply because you don’t have to use equipment or tools to remove soil plugs. Liquid aeration makes it easier to aerate a large area of your lawn because you just have to spray it.
Finally, liquid aerators on the market that are natural and contain organic ingredients can help to loosen the soil as well as nourish it with nutrients so that it can boost the growth of your grass.
Despite the above, there are some ways in which core aeration can be better than liquid aeration. These include the following:
- Core aeration helps to remove excess thatch from the surface of your lawn, which can prevent grass blades from getting enough sunlight, oxygen, and nutrients.
- It’s a traditional technique that’s been proven to be effective, especially in larger fields. In this application, core aeration is also cost-effective.
- It provides a great environment for applying fertilizer and seeding your grass.
- Core aeration is ideal for lawns where liquid aeration can’t penetrate the soil deeply enough.
- It gives you an immediate result, which you won’t achieve with liquid aeration. That said, the effects of liquid aeration do last longer.
Can I overseed after liquid aeration?
Overseeding your lawn is when you plant grass into the existing lawn without removing soil or turf. It works well to fill out bare spots in your lawn and make your lawn have a greener, more beautiful color.
If you want to use liquid aeration, you should apply it before you overseed your lawn. A good rule is to aerate your lawn 48 hours before you overseed. This is important because it gives the grass seeds the best chance of entering the soil and making enough contact with it to aid the germination process.
It opens the soil for nutrients and oxygen to enter the soil, and this extra space that’s produced ensures that you can add more seed to your lawn.
After aerating your lawn, you can overseed it by spreading grass seeds evenly over your entire lawn. You can put extra grass seeds in any areas of your lawn that are thinning out.
Make sure that you water your grass regularly after you’ve overseeded it so that you keep the seeds moist to encourage germination and growth.
Aerating your soil is a smart practice if you want to overseed your lawn or encourage your grass to grow healthier and look greener. In this article, we’ve featured five of the best liquid lawn aerators for the money, looking at their pros and cons.
We’ve also looked at some common questions you might have about liquid aerators, such as if they work better than core aeration methods and if you can use a liquid aerator before you overseed your lawn.