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9 Best Weed Killers for Lawns – Comparison & Reviews

Last Updated: 27.11.22


The Essential Guide to Finding the Best Weed Killer for Lawns + Reviews


If what you are looking for is the best weed killer for lawns, then you surely know that choosing the right one for your needs is a lengthy process. If you don’t want to spend too much time looking for relevant details on your own, it’s a very good thing you are reading this article. Our team decided to help you by bringing you directly the answer. After going through a lot of data about each product, we concluded that the one you should keep in mind is Southern Ag’s Amine 24-D Weed Killer. This lawn treatment works on a wide range of green spaces and keeps many types of broadleaf weeds under control. Moreover, the fact that you don’t need to use too much product when creating the mix, makes it a cost-effective solution as well. In case this product is, for some reason, unavailable in your area, the next option to take into consideration is Doctor Kirchner’s Natural Weed Killer.



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9 Best Weed Killers for Lawns (Updated Reviews) in 2022



Sometimes finding the right product for your needs can be difficult, so if you are looking for the best weed killer for lawns reviews to help you choose, the selection below is here to help. The products you’ll see showcased are the highest-rated ones, so don’t hesitate to take your pick.



1. Southern Ag Amine 24-D Weed Killer 


There are many options when it comes to the type of weed killer for lawns, but this one offered by Southern Ag is worth taking a closer look at, given that it features an effective formula that will take good care of your lawn. The manufacturer recommends using this product for a wide range of green spaces, such as golf courses, pastures, parks, or ornamental turf.

Moreover, this is a selective broadleaf weed control solution, so you don’t need to think that it might affect the lawn itself. In terms of costs, it’s an economical option, given that for one acre you will need to use between 1 and 4 pints. If you decide to buy it and see how it works, you won’t have to deal with woody plants and broadleaf weeds anymore.

We all know how nice a well-maintained green space looks like, so you shouldn’t hesitate to get this product and make it a reality.



The solution can be easily applied, as it only needs to be equally sprayed around the green spaces, ideally with a fan-like nozzle.

It can be used on a wide range of green spaces that include a lawn, so your life is going to be a lot easier if you need to maintain more than one property.

The grass is protected in this process, as this is a selective substance, so you don’t need to worry about this aspect.

Unlike other more expensive brands, this product is effective and gets the desired results quickly, unless you are dealing with a major infestation in which case you may need to reapply it.



You should double-check if the grass you want to use it on is suitable, as there are some indications provided by the manufacturer on this.

When the solution is applied, it needs to be sprayed with caution and without overlap, to obtain the indicated coverage.

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2. Doctor Kirchner Natural Weed Killer 


If you have a house full of kids and pets, then you are probably looking for a natural weed killer for lawns that can get the job done without harming your beloved ones, and this is exactly what this Doctor Kirchner product does. The manufacturer wanted to offer a chemical-free alternative to the products in this line, and used natural ingredients to do this.

The Natural Weed Killer it offers uses food-grade vinegar, ocean saltwater, and soap to get the job done. Of course, this also means that you won’t have to worry about harming the environment either. This formula is free of chemicals that might come with certain risks, so you have every reason to give it a try.

Moreover, the solution is ready to be sprayed right from the package, so there is no necessary step in which you have to measure water and substances to get the final product.



If your pets are always willing to play outside, you won’t have to restrain them for several days after you’ve applied the product, as the only thing you need to wait for is the solution to dry.

Given that the formula is ready to be applied straight out of the container, there’s no need to worry about mixing it with water in the right ratio.

Most weeds you need to deal with will be gone in just a few hours, which means you’ll get to see the results right away.

This is a pet safe weed killer for lawns, as it doesn’t contain any harsh chemicals that might otherwise irritate or hurt your pets or loved ones.



If you are dealing with severe cases of weeds, then you might have to reapply the substance to get the results you want.

This is not necessarily a cheap weed killer for lawns, especially compared to other products in this market.

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3. The Andersons Pro Turf Barricade Weed Control 


Finding the most effective weed killer for lawns is not always easy, but there are certain products, such as this Pro Turf Barricade, that check all the boxes and will definitely make your life easier. This particular product is specially formulated to prevent broadleaf weeds and other similar annual plants from making their way into your lawn.

The active ingredients are specially selected to effectively deal with undesirable weeds but without harming other plants or the grass in the process. What makes the product highly efficient is the fact that it inhibits the germination process and the development of the roots. As you can imagine, weeds don’t really stand a chance to further grow.

Moreover, it’s also a versatile weed control solution, given that it can be used in all sorts of green areas, such as farms, parks, or non-crop lands. You can also safely give it a try if you need to keep green spaces clean of weeds around gas stations, tank farms, or parking areas.



To get the results you want, the product should be applied during the spring or fall seasons, so seeds don’t get a chance to germinate.

The application process is not difficult and the product comes in smaller or larger bags, which means that you can choose the one you need.

This is an effective way to keep the weeds under control, as the active ingredients are specially selected to get the job done right away.

Given that the germination process and root development are inhibited, you won’t have to worry about weeds invading your beautiful lawn for a while.



You do need to make sure that you follow the manufacturer’s recommendations on applying the product to get the right results.

It’s also a good idea to activate the substance with more than 0.5” of water 14 days after the first application.

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4. Southern Ag Amine 24-D Broadleaf Weed Killer 2Packet 


This Southern Ag product is a very good solution if you need to deal with broadleaf weeds that keep invading your lawn. We all know that keeping green spaces in top shape is not always an easy task, but with the help of this product, your life will definitely be easier and your lawn will look great.

Moreover, this is a safe weed killer for lawns, and when we say “safe” we mean that it will only get rid of pesky weeds but it will not affect the grass itself. For this reason, it can be used for a wide range of areas, such as lawns, pastures, golf courses, parks, and any other similar ones.

Another important aspect that you should know is that this is also a cost-effective product. You won’t have to use too much to obtain the right results.



This is a versatile product, so you won’t have any trouble using it on a wide range of green spaces, especially lawns, but also fences, pastures, ditch banks, or turf.

The active ingredient is highly effective in dealing with woody plants and broadleaf weeds, which means that these are not going to be a problem anymore.

This is a 32oz. package and you have to use somewhere between 1 and 4 pints for each acre of land, which also makes this an economical alternative.

It’s easy to apply, and you should use a low-pressure spray, ideally one that comes with a fan-like nozzle, to efficiently cover all the areas.



Depending on the level of weed infestation you need to deal with, the product might need to be reapplied to obtain the results you want.

If you have other plants that you think may be affected by the formula, you should contact the manufacturer for extra details.

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5. Ortho Weed B Gon Weed Killer 


This Ortho product is the way to go if you need a versatile solution to keep the weeds in your lawn under control throughout the year. The formula is specially made to effectively get rid of clover, dandelions, as well as other types of broadleaf weeds. However, you should keep in mind that it needs to be used as directed in order to obtain superior results.

Besides the fact that it can kill pesky weeds all the way to the root, this product is also available in various sizes, so you can choose the one that best suits your needs. This particular one is already mixed, so it can be used right away.

What makes this product stand out among other weed control solutions is the fact that it’s specially created for Northern and Southern lawns. Moreover, you will be able to see the results in only a few hours.



This is a versatile weed control solution, given that over 250 types of weeds can be dealt with if you decide to buy it.

The Comfort Wand applicator makes the product very easy to use, and you can rest assured that the lawn won’t be damaged in the process.

You get optimal results if you apply it while the weeds are still actively growing, while it’s versatility means that you can get rid of various types of plants throughout the year.

This package is ideal for spot treatments, but you can also find the same product in larger sizes if you need to cover wider areas.



If you are not sure whether it might affect certain plants you have in your garden, make sure you carefully read the label.

This product should be used as indicated for optimal results, and you can also test it first on a small spot in order to see how it works.

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6. PBI GORDON SpeedZone Lawn Weed Killer Broadleaf Herbicide 


If you are in the market for an effective way to keep weeds under control, then you might want to take a look at this SpeedZone product as well, as it checks all the boxes to make any user very happy with the results. First of all, this is a selective solution that falls into the post-emergent herbicide category.

This means that you will be able to get rid of weeds invading your lawn without too much trouble. In case you are wondering why you should choose this particular product, you should know that it works very well in cool weather. Therefore, even if you live in a cold area that might make other products less effective, you won’t have any issues using this one.

The versatile formula can effectively get rid of common but often troublesome weeds such as spurge, dandelion, pennywort, or white clover. Of course, it can be used in warm weather as well.



This is a fast weed control solution, and you will be able to see the first results in just a few hours.

It remains active and plants can die over a period of 7 to 14 days after its application, so you will see how it works for several days.

Thanks to the effective formula, you won’t have to worry about common weeds anymore that might ruin your lawn if they are not kept under control.

Besides the fact that it’s a fast-acting product, it also works in both warm and cold weather.



This is not an organic weed killer for lawns, so some people might be reluctant to use it. However, it’s definitely an effective one.

If you are trying to get rid of resistant weeds or if the level of infestation is high, you may have to reapply the product multiple times.

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7. Monterey Gowan USA 51496 SedgeHammer 


The SedgeHammer product is very effective thanks to its active ingredients that move through the plant, targeting and then dealing with the underground growing points. It’s specially developed for nutsedge, so if that’s what you need to keep under control, this is the right product for your lawn.

Moreover, it’s very easy to use, given that all you need to do is mix the content within the pack with a gallon of water and then simply spray it on the targeted weeds. As you might be looking for a pet friendly weed killer for lawns, it’s good to know that once the area dries, pets and family members can go back and play in the garden.

Since this is a selective product, you don’t need to worry that it might affect the grass as well. However, you should read the instructions and check with the manufacturer if you have a special type of grass on your property.



Given that this product moves through the plant targeting its growing points, it stops the entire development process of nutsedge weeds.

As it’s a specialized product, you don’t need to worry that it might affect your lawn, since it’s formulated to protect St. Augustine grass, Kentucky grass, Bermuda grass, as well as cold and warm season ones.

Rest assured that you won’t have to deal with purple and yellow nutsedge anymore, and the same goes for other broadleaf weeds that have proven to be resistant in the past.

With years of proven results, this is an effective weed control formula for your lawn, so you might want to try it out.



Depending on the area you need to cover, it might not be the cheapest solution.

You may need to be patient to see the results, as it can take up to a couple of weeks for the weeds to die.

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8. Ortho Nutsedge Killer for Lawns Ready-To-Spray 


This Ortho product is the right choice if you are looking for versatile weed control to keep your lawn in top shape. The solution is specially formulated to deal with tough broadleaf weeds, such as yellow and purple nutsedge, purslane, wild garlic and onion, dandelions, pigweed, redroot, as well as other biennial, annual, and perennial plants.

What makes it a very good option is the fact that it can be applied on a wide range of Northern and Southern types of grass without affecting them. Moreover, it’s a no-mix formula, so you can use it right away around your garden. With its help, you won’t have trouble keeping pesky weeds out of your lawn throughout the year.

You will also surely appreciate the fact that it acts quickly, as users see the first results in a matter of days. However, you do need to be patient for up to a couple of weeks before you can see its entire effect.



This is a versatile product that helps users keep over 50 types of tough weeds under control, so you shouldn’t hesitate to see how it works for your lawn.

It can be safely applied to a wide range of grass types, both Northern and Southern, without affecting them, so this is not something you should worry about.

Given that it’s a ready-to-spray formula, you can start using it right away, without going through the entire process of making the right mix yourself.

Your lawn will remain healthy, as long as you apply the product based on the manufacturer’s indications.



Make sure that you store the package with care, to prevent any leaks that might ruin things around your home or garage.

If you are not sure whether your lawn is suitable for this product, carefully read the details provided and ask the manufacturer for further details.

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9. Southern Ag Lawn Weed Killer with Trimec 


This Southern Ag product is an effective way to keep a wide range of weeds under control, and it can be used on 9 types of turf, so you can safely give it a try. The special formula is actually a patented one that uses 3 weed killers to ensure the fastest results. If you buy this product, you won’t have to worry about weeds invading your lawn throughout the year.

Of course, just as it’s the case with these products, you need to use it as indicated to obtain the results you want. Moreover, it can be safely used on Bermuda, fescues, Bahia, St. Augustine, or Bluegrass. However, you shouldn’t use it on improved varieties from the South, as it might damage the lawn itself.

The versatile mix of active ingredients is highly effective in keeping most broadleaf weeds under control, and the product itself is easy to apply.



All you need is a spray, ideally with a fan nozzle, to get the job done, so using this solution is not going to be difficult, especially since you can use standard garden hoses.

If you want to see the results right away, you should use this solution when the weeds are still young and tender.

The product works very well and you will see the first results after a couple of days, and it might take up to a couple of weeks for the weeds to completely disappear.

Given that this is a patented formula that combines three types of weed killers, it can be used for a wide range of weeds.



Keep in mind that this product should not be used for improved grasses from the South, given that you might not obtain the results you want, but damage the lawn instead.

You shouldn’t water the area for 24 hours after applying the treatment.

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Our Comprehensive Buying Guide


We know that a beautiful lawn can really make a difference, as it makes the house look beautiful and well maintained, and you can also enjoy some peace of mind and tranquillity by spending time in the garden. However, we also know that keeping everything weeds-free is not an easy task, as these pesky plants seem to be growing pretty much everywhere.

Therefore, you are probably looking for the most effective way to keep them under control. There are several ways to do this, including removing them by hand. However, the most time-efficient alternative is finding the right solution. Depending on the area you need to cover, you might want to look for the best weed killer spray for lawns that is already pre-mixed.

There are the concentrated alternatives as well, some of them specially designed for certain areas, so you are not wrong if you are looking for something in particular, such as the best weed killer for southern lawns. We know that there are plenty of products in this category so, in the next lines, we’re going to take a look at how to choose the right one for your lawn.

Is it necessary to remove weeds?

This is a question that some of you might have, and the answer is “Yes!” if you want to have a well-kept lawn. Weeds are those unwanted plants that always seem to make their way into a garden or lawn, and are very difficult to remove. While it’s true that they are part of the natural habitat, they can pose some problems, so it’s better if they are dealt with right away.

The first thing you want to keep in mind is that weeds need nutrients, light, and water as well in order to thrive. The thing that makes them special is that they are going to do everything they can to get these essential elements, which means that they can end up hurting the lawn. They are aggressive and usually expand faster than other plants.

If they are not kept under control, they can compromise an entire lawn rather quickly, as the grass doesn’t receive the necessary nutrients. Moreover, given that weeds grow very fast, they can actually suffocate the grass and other plants. If this isn’t risky enough, some of them can also be poisonous to other plants.

Another aspect worth considering is that they can also have secretions that can be harmful to crops, flowers, and lawns. So if you’ve invested in high-quality grass, you probably don’t want it to die away in one season.


What you should look for in a lawn killer

Before actually buying a weed killer there are several factors that you need to take into consideration. The product needs to be suitable for your lawn’s needs, as otherwise, it can end up damaging it even more, or not being effective at all. You also need to know what type of weeds you are dealing with to get exactly the product that can get the job done in no time.

The first aspect you should look at is coverage, given that various products can be used in different concentrations. Take a look at the information provided by the manufacturer, as you may have to adapt the water-to-substance ratio depending on the type of weeds you are dealing with as well.

With this being said, think about the surface that you need to cover, and see how much water is necessary to create the right mix. This way, you will ensure that you have enough for the entire lawn. If you simply need to spray a bit around plants, you can always choose a pre-mixed spray that will make the entire process easier.


Selectivity & effects

Of course, you should always choose a selective product, since you are going to spray it over the lawn. This means that only the weeds are going to be affected, while the grass remains unharmed. However, you need to know what type of grass you have on your property, and then check the instructions to make sure that the formula is safe for it.

Furthermore, if you need to deal with perennial weeds, other plants might be impacted as well, so you want to take a look at this aspect as well. In terms of effects, if the herbicide you choose is right for your lawn’s needs, you shouldn’t see any negative impact. However, do keep in mind that any chemical that you use over and over again can eventually decrease the soil’s quality.

For this reason, you can also look for the best organic weed killer for lawns, as these products might be safer in the long run. In the end, it all depends on what you need to keep under control and how often.

Last, but not least, you should also think about the areas that you need to cover, and by this, we mean the type of green space. If it’s around the edges and the weeds have shallow roots you can use one product, while weeds that are at the heart of the patio or lawn are certainly stronger, so you may have to use a more potent weed killer.



Frequently Asked Questions


Q: How do I use a weed killer for lawns?

The answer, in this case, depends on the type of product you want to buy and on the area you need to cover. If we’re talking about small spaces around your home, then you can simply buy a suitable premixed spray and apply the treatment locally.

However, if you need to keep large areas free from weeds, then you should buy a weed killer that can be mixed with water and then applied using a garden hose with a fan nozzle.

Furthermore, you also need to make sure that the substance you are going to apply won’t damage the lawn, as there are some of the options on the market are selective, and also that it’s suitable for the type of weeds you are trying to get rid of. For this reason, if you are not sure what product you should get, you can always contact the manufacturer for further information.

Q: Are all weed killers safe?

No, not all weed killers are safe for any lawn. Some of them contain chemicals that can affect certain types of grass, so it’s very important to carefully read the label before applying the product. Moreover, if you are still not sure whether the product will damage the lawn as well or not, you should look for all the necessary information before applying it.

With this being said, it’s also important to mention that you should use any weed killer with caution if you have kids and pets in your home. Another option, in this case, is finding a very good organic weed killer.

This way, you know for sure that you can deal with the weeds without exposing your family to harsh chemicals. However, these options might be a bit pricier or less effective on very tough weeds, so it also depends on what you need to deal with.


Q: What’s the difference between weed killers?

There are several types of weed killers that you can go for. The first one you might want to take a look at is the post-emergence product. These substances are generally used when the weeds have already grown too much and they need to be sprayed on. The way they work is by infiltrating the weeds and killing them from within.

Another type of weed killer consists of contact substances. Just as the name suggests, these work by coming in direct contact with the weeds. The only downside is that they don’t deal with the roots as well, so it’s best to use such substances combined with more permanent treatments.

The in-depth weed control solutions are pretty much the exact opposite of contact ones. The way they work is by entering the soil and killing the weeds from the roots. It’s true that they take a longer time to work, but the results they ensure are more permanent.




1) Controlling weeds is about more than aesthetics

2) Tips for a beautiful lawn

3) The secret to your desired lawn

4) List of mechanisms found in modern herbicides



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