Top 8 Best Crabgrass Killers of 2020 & Buyer’s Guide

In the market, there are lots of best crabgrass killers that guard your flowerbeds and garden. But, which is the best one out of all these products? Have you ever wondered about it? If no, you should know about the perfect kind of product that best suits the needs of your garden.

Consumers who like to purchase a crabgrass killer need to consider whether they require a formula based on chemicals or something made of organic ingredients. No matter what product you employ, ensure that it would not harm the atmosphere or pose threats to the people’s health around us.


Crabgrass is a light green, coarse, unattractive annual weed, which grows in summer. It belongs to aggressive species that robs the soil off essential nutrients and moisture. The crabgrass seeds start to germinate when the soil temperature reaches 55-57 degrees. In July-August, these plants spread in gardens.

Best Crabgrass Killer

Though crabgrass dies off the very first frost, the plants produce enough seed heads that make sure a new crabgrass crop in the next year. The plants lay dormant till springs come back. In order to eliminate crabgrass, interrupt the germination cycle of these seeds in months like April and May. For this, you need to introduce grass seeds to the lawn’s thin areas. Also, employ pre-emergent herbicide or crabgrass preventer in your lawn.

Why Is It a Problem?

If you have dealt with crabgrass before, then you know what we are talking about here. It takes over your lawn before you will even notice. Also, it is quite difficult to eliminate this crabgrass from your garden or lawn. But, why is it a problem?

Crabgrass is referred to opportunistic annual grass. As the name suggests, crabgrass looks for an opportunity and creeps in your lawn. Once done, it extends to any available surface or terrain. One thing that you should know is that crabgrass is not harmful. It does not crowd your current grass and is not a weed.

On the other hand, crabgrass will die in winters. However, it will disperse all seeds before that. One crabgrass plant produces up to 150,000 seeds per year. This means a massive amount of seeds. Thus, you should remove crabgrass before the situation gets out of control.

Now, let’s know about some of the best crabgrass killers available in the market. These products come from well-known brands. Here, we have listed all the significant features of each and every product along with their advantages and disadvantages. So, let’s have a look at the best crabgrass killers as well as a buying guide that will help you to get the perfect weed solution for yourself.

8 Best Crabgrass Killer Reviews

Here, we have listed some of the best crabgrass killers out there. To know more about them, keep on reading!

*Below, you'll find our more detailed reviews, but you can also click the links above to see current prices or read customer reviews on Amazon.

best crabgrass killers


Compare-N-Save weed killer comes in a concentrated form. One can simply dilute this solution to employ in the concerned area. It is an incredible weed killer that offers a potent weed control mechanism. Gardeners can use this crabgrass killer along sidewalks, patios, paths, driveways, and fences and even around shrubs, flower beds, decorative plantings, and trees.

This weed killer from Compare-N-Save works great for enhancing and trimming landscape surroundings. The ultimate way for applying this solution is to spray it during the daytime when the temperature goes above 60 degrees Fahrenheit. It is better to use this product on sunny days when there are no chances of rain within the upcoming 24 hours.

The herbicide kills all kinds of green plants like lawn grass. So, you should be careful while using this weed killer. Due to its Glyphosate content, foliage absorbs this spray that travels straight to roots. Before you use this product, it is better to read all the label instructions. For using it, you need to take 1.5 ounces or three tablespoons of the solution and then, mix it with a gallon of water. It will be enough to treat over 300 sq. ft. area. For treating perennials, employ 2.5 ounces for a gallon of water.

The amazing part about this product is that it turns rainproof within just 2 hours following its application. It is the best crabgrass killer for people who are looking for an affordable, non-toxic, and powerful solution for killing unwanted plants.


  • Offers great results within 2-3 days
  • Inexpensive weed killer
  • Turns waterproof within 2 hours
  • Makes about 210-gallon spray


  • Average performance
best crabgrass killers


If you are in search of an organic and natural weed killer, then Green Gobbler crabgrass killer is what you need. This weed killer does not leave any harmful chemical in the soil, which is why it is the choice of various landscapers and homeowners who like to keep healthy gardens and lawns. One can use this product in industrial, commercial, agricultural, or residential areas without damaging the environment.

What people like most about this product is that it just kills weeds without contaminating the soil and water system. Gardeners can even use Green Gobbler crabgrass killer along mulch beds, pavers, and farmlands. It is quite secure for organic application, where you can eliminate unwanted weeds or grasses without using toxic ingredients.

Green Gobbler Natural Weed Killer is devoid of VOCs, additives, glyphosate, or other harmful chemicals. It is much more powerful and stronger than various table vinegar available out there. For applying this solution, you do not have to dilute this product. So, just spray it directly on the affected areas. It works great for crabgrass, clover, oxalis, dandelion, and musk thistle. Meanwhile, this product even comes with a 30-day money-back guarantee. Now, what else you need thanthat!


  • Simple to apply
  • Great for using along mulch beds, driveways, flower beds, etc.
  • Comes with a 30-day money-back guarantee
  • Powerful and effective weed killer
  • Organic weed killer with no chemicals


  • Does not last longer   
best crabgrass killers


Another great crabgrass killer is Southern Ag Amine 24-D weed killer, which works great to kill broadleaf herbicide and weed killer. This product is the best crabgrass killer out there as it effectively kills weeds over an area of 16,000 sq. ft. Apart from weeds, it works great on broadleaf weeds like clover, chickweed, dandelions, and poison ivy.

The perfect time to apply this product is when the temperature is below 90-degree Fahrenheit during a sunny day. Also, the wind speed is somewhere around 15 miles an hour. After treatment, makes sure that it does not get exposed to water or rain within the upcoming 24 hours. It shows effective results within 24-48 hours.

What makes this product unique is its efficiency to kill broadleaf weeds. It works in several areas, such as lawns, parks, and non-crop places. The product makes use of a patented and unique formula called 24-D. This formula works perfectly to control several broadleaf weeds in your lawns. Other grasses that this weed killer is capable to eliminate are Buffalo grass, Bentgrass, Bermuda, Bluegrass, Rye, Centipede, Fescues, Bahia, and St. Augustine.


  • Eliminate grass strains such as St. Augustine
  • Extremely effective and powerful
  • Works great on post-emergent unwanted weeds
  • Economical, low use rate


  • Would not kill typical weeds
best crabgrass killers


Tenacity Turf Weed Killer is perfect for pre-emergent weeds. It covers up to 46 varieties of grass and weed species. The active ingredient in this product is mesotrione 40.0%, which is based on Callistemon Citrinus that the bottlebrush plant produces naturally. This weed eater from Tenacity Turf is effective for the residual control and selective contact of weeds in decorative turfgrasses.

Gardeners can use this product on commercial and residential properties, lawns, golf courses, athletic fields, parks, and sod farms. For applying this solution, you need to mix the herbicide in 1/3 ounces in a gallon of water. This weed eater is effective for controlling weeds during or before seeding of several turfgrasses during the renovation of turfs.

In case, you like to use this weed killer as a pre-emergent treatment in well-formed turfs, never plant crops apart from turfgrasses for at least 18 months after applying this Tenacity Turf herbicide. Also, make sure not to apply this weed killer through any kind of irrigation system as well as do not employ grass clippings as mulch from Tenacity-treated weeds.

However, you should be very careful while using this powerful herbicide. While applying this weed killer, you should also consider the wellbeing of other plants and also of the atmosphere in general. Soils with petty water tables or badly draining soils are vulnerable to create runoffs that contain this weed killer. So, it is better to create a well-maintained and leveled vegetative buffer strip between Tenacity-treated areas and water bodies to prevent water contamination.


  • Powerful pre-emergent weed killer
  • Effective in controlling weeds
  • Great for treating up to an acre land
  • Perfect results with non-ionic surfactants


  • Foliage turns white for a while
best crabgrass killer


This weed eater from RoundUp is designed especially for killing unwanted weeds suddenly and quickly. For best applications, you can use this weed killer around tree rings, flowerbeds, mulch beds, along driveways, walkways, and patios. It even works great on cracks along driveways and other walkways. RoundUp weed killer shows effective results just within 3 hours, which makes it the quickest acting formula for brutally killing weeds.

RoundUp weed killer is a systemic formula that expands its devastation to roots and delivers great results. For simpler usage, this crabgrass killer arrives with an easy-to-use wand. This wand extends a bit and saves gardeners from bending over to eliminate weeds. Using a single treatment, they can treat over an area of 400 sq. ft. So, this weed killer delivers impressive results.

The most impressive thing about this RoundUp weed killer is its easier application. Also, the product shows effective results within three hours after its application. It is well-known among gardeners because it kills the toughest weeds effortlessly. The weed eater arrives with a spray that helps in an easier application. Within 10 minutes, this solution becomes rainproof. This is a no-mix solution that various garden and lawn owners find very convenient. If you like to see effective results, then go with this best crabgrass killer.


  • Systemic and no-mix weed formula
  • Simple and comfortable to use
  • Great for all types of grasses and bushes
  • Turns rainproof within 10 minutes


  • Non-selective weed formula
best crabgrass killer


With the latest and innovative technology, BASF has produced a highly-efficient herbicide that carries out the work impressively. The weed killer makes sure an unparalleled control over crabgrass. This comes in the form of a water-based solution. Drive XLR8 herbicide successfully deals with torpedograss, kikuyugrass, and a wide range of broadleaves like clover, speedwell, and lots of others.

Meanwhile, this weed killer becomes rainproof quickly within an hour. A single application of this crabgrass killer offers impressive residential control over a month. One can apply this herbicide in commercial, residential, and industrial areas. Also, it can be utilized in recreation fields, golf courses, and sod farms. However, it does not come with a cheap price tag.

A bottle of Drive XLR8 herbicide will treat lands up to an acre with the full application. It works faster than other weed killers available out there. This herbicide is a complete solution for controlling crabgrass weeds, where it works in a quicker way for a quick killing. It controls full-grown weeds having four tillers and more. This product takes just an hour to completely dry.

The best part about Drive XLR8 is that the residual of this weed killer stays as long as 45 days if you apply it at a maximum rate. To enhance its effectiveness, you can even add oil replacement solutions with it. It works perfectly well for other weeds like clover, foxtail, dandelion, speedwell, dandelion, etc


  • Becomes rainproof in an hour
  • Specially designed for eliminating crabgrass
  • Works effectively in industrial, residential, and commercial areas


  • Quite expensive
  • Not expected results
best crabgrass killer


Most of the products that we have listed here are directed at weeding out various kinds of weeds on lawns, this weed preventer from Scotts Halts is more focused on preventing crabgrass from maturing and even killing crabgrass. This product arrives in such a package that is great for every-sized gardens. Hence, homeowners do not waster their money on products that they do not need.

Scotts Halts weed preventer is entirely weatherproof. Plus, the label mentions that this crabgrass killer could potentially help in maintain weed-free lawns for the whole growing season. For preventing weeds like crabgrass, you need to use it during springs. On the other hand, weeds like poaannnua, chickweed, and henbit can be prevented during the fall application. However, do not employ this product for bentgrass or dichondra lawns. Plus, it partially performs this hectic task for bigger lawns.

On the other hand, this weed preventer is quite effective for pavements or smaller lawns, where you concentrate on a particular area. Weathers like freezing, snow, or rain do not have any effects on the performance of this product. However, this product is a bit expensive. To improve its performance a bit more, users can add other killing agents to the Scotts Halts weed preventer.


  • Simple and convenient to apply
  • Inexpensive weed preventer
  • Great at averting the crabgrass growth
  • Contains no harmful chemicals for plants


  • Needs additional killing agents for crabgrass
best crabgrass killer


Quinclorac 75 DF Selective crabgrass killer from Primesource is one of the amazing ways to eliminate crabgrass from yards. It can be used for both residential and commercial kinds of grasses. This product is even perfect for golf courses and farms. The foolproof-crabgrass formula even makes this weed eater a smooth weed control.

The active ingredient in this crabgrass killer is quinclorac, which makes up to 18.92% of the product. This product provides the weed killer dependable post-emergent control over both grassy and broadleaf weeds. It works great on a wide range of turf species from commercial and residential properties to sod farms and sports fields.

Quinclorac 75 DF herbicide has been designed to offer long-lasting controlling power over grasses and weeds. Its effect stays on from a month to as long as 90 days. This crabgrass killer eliminates a massive variety of grassy and broadleaf weeds as well as excellent control over full-grown crabgrass weeds without damaging turfs.

The best part about this weed controller is that it offers seeding and application flexibility. Hence, it is perfect for overseeding and seeding operations. It supports diluted usage. However, if your garden is facing harsher crabgrass weeds, you can go with the pure solution instead of mixing it with water. The weed killer also kills lots of diverse kinds of regular weeds, which makes it an incredible drive crabgrass killer. Overall, this weed eater is amazing for all garden types.


  • Works on all kinds of weeds
  • Great for both residential and non-residential farms and grasses
  • It is super resourceful in diluted form
  • Quinclorac content is around 18.92%


  • Major problems with soil types

Buying Guide For The Best Crabgrass Killer

Have you ever employed a crabgrass eater before? If so, what about the typical landscaping? Before you make use of a weed killer, it is best to complete your homework. Let’s begin with knowing about some general things related to crabgrass killers.

best crabgrass killer

Just figure out what features are the most crucial to you:

Kinds of Crabgrass Killers

There are two kinds of crabgrass killers out there, which are pre-emerging herbicides and post-emerging herbicides. Pre-emerging herbicides stop the root development when the seeds germinate or after that. However, they do not work against annual persistent plants that have left the seeds behind from the last year. They need to be applied about two weeks before the seeds begin to germinate.

Post-emerging herbicides are more of an aggressive kind. These products help you in eliminating unwanted and wanted plants. Thus, you need to apply this product on the exact place, where the crabgrass plants are growing.

Effect Area

Apart from the duration, you need to see how much area a crabgrass killer covers if you apply the entire product. Most of the crabgrass killers mention the maximum range that the lawn owner should apply it over. So, your herbicide needs to cover the entire area effectively.

Effect Duration

The most important factor is the duration that the herbicide requires to show desired effects. Some crabgrass herbicide lasts for some months with just several applications. Meanwhile, there are products that require frequent applications. So, you should know how much and how often you should apply the crabgrass killer.

Application Safety

Crabgrass killers work perfectly well when it comes to fighting weeds. However, there are several brands that act harshly against plants that you do not want to remove. As you know, different kinds of herbicides act differently on different types of lawns. So, check the grass type in the lawn and only then decide on the herbicide that you would like to go with.

Seasonal Timing

You need to check if your crabgrass killer works all seasons or not. There are certain products that work best in a specific season. That’s the reason you need to check in which season your product better. Some works well during colder months, while others work during hotter months.

Weather Resistance

Usually, premium-quality herbicides are designed in such a composition that they resist the weather interference on the removal effects. So, you should check if your crabgrass killer works in weather like snow or rain.


Another important thing is convenience. There are various killers available out there, where some products come as ready-to-use items and some require other ingredients to work. It is best to go with products that feature a complete package.

Also, you need to ensure that your product dilutes completely in water as some products do not dilute in water easily. So, it is better to examine the concentration.

How To Identify Crabgrass?

The first thing you need to do to get rid of crabgrasses in your yard is to identify them properly. At first glimpse, you will come across some grasses that look like weeds. Almost every person commits this mistake, where you will end up missing some spots while spraying. Crabgrass features a spade-like tilt near the weed’s leafy portions. This part grows at a horizontal angle, which is perpendicular to the earth.

If you left crabgrasses untreated for some time, you can easily notice the stems. These stems will even convene at the roots’ tips, where the undergrowth starts. In case, your yard is commonly filled with regular grasses, these grasses are easier to spot as weeds barely point in a similar position as the grass. Watch this video to better identify crabgrass.

How To Treat Your Yard Without Damage?

Weed killers used to have a reputation that they are quite strong but destructive. There are several formulas in the market, which are combined with ingredients that will eliminate everything that they come in touch with. On the other hand, some other methods rely on natural-killing techniques. A perfect weed killer enables you to get rid of everything that you do not want while keeping all seasonal growth intact.

How To Use The Best Crabgrass Killers?

Generally, grasses are divided into three kinds, which are yearly, bi-annual, and annual. Out of these three varieties, grasses that you want to remain in your yard would last the whole year without fading away. These types are even known as perennial. Apart from this kind, the other types comprise of weeds that you like to eliminate.

The main purpose is to look for the weed killer that will assist in keeping the perennial growth to the ground without forfeiting it during the weeding. You should employ crabgrass killers when you watch them emerging just before the springtime.  The best time to spray a crabgrass killer is between April and May. However, lots of crabgrass killers work during every season. However, you need to take care of certain things would be effective to prevent weed growth later on before the earth temperature goes above 55 degrees.

How To Know When A Crabgrass Killer Works?

best crabgrass killers

Crabgrass killers are a bit odd in certain ways. It is so because of the varied period of time that certain products take before showing effective results. With most crabgrass killers, you will notice the weeds getting died within two weeks. However, some products take a bit longer between four and five weeks. After spraying the crabgrass killer, you have to wait for two days and examine the problem spots.

On noticing small strips of purple and violet spots on the crabgrass’ stems, it means your crabgrass killer is working well. Regardless of the product you select, profoundly weeded spots may be better if you just simply dig up the weeds from the earth and re-seed them. You have to spray the crabgrass killer once a day. However, you should read the instructions as recommended on the product.

How To Spray A Crabgrass Killer In Wet Weathers?

If you will use a low-quality crabgrass killer, then rainwater will soak up the formula and leave it useless. Also, it will have adverse impacts on your perennial grasses. In order to avert this issue, the products mentioned here come with a common characteristic. These products stick wherever they touch. It means that you do not have to think about the toxics going deep down into the soil.

However, you should not spray a crabgrass killer during or before a rainstorm. You need to have some patience and wait for a while for surroundings to dry up a bit if you stay in a place that receives a significant range of precipitation. If your area is still cold, the low temperatures could actually assist you with weeding. It is a great time to begin before things go out of your hand.

How Long Should You Wait For The Results?

To kill weeds using a crabgrass killer, you need to wait for some days to some weeks before your weeds start to pass away. However, you should not panic if you have not seen any results after several weeks. If you want to see effective results in no time, it is advised to go with brands having strong formulas or those containing more solution.

Most of the crabgrass killers equal a larger amount that one can combine with water. However, you should be careful not to overdo this amount. Also, as stated above, you should hit the perfect season that is the main key here. If you follow this advice, then you will come across fewer issues for the rest of the growing year.

How About The Toxicity Of These Crabgrass Killers?

Crabgrass killers can be harmful to certain plants. Fortunately, most weed killers would not damage any of your grasses. It includes other weed varieties, which need to be taken care with alternatives. Do not use the formula around small children or pets. Also, you should avoid spraying these crabgrass killers regions near gardens.

Most crabgrass weeds grow on the lawn edges, which assists in easier spraying and removing them without any exposure to animals. Also, do not breathe this solution while spraying in your garden.  Hence, you should be very careful, especially when using it with a spray nozzle. The application process is quite easy and most products come with inclusive directions for the same.

How To Keep Them Away Once They’re ​Gone?

It is not just important to eliminate crabgrass from your garden but also to keep them away. In order to do so, you need to remove crabgrass immediately as soon as you spot it. It is better to pull it off by its roots. Once removing it, you need to mulch that soil where the crabgrass was growing. It assists in preventing seeds from germination.

Time plays an important role here and that’s why you need to begin your task during early spring. At this time, the plants begin to germinate. So, apply pre-germinate herbicide and fertilizer to spots where the problem once was.

In the end, a healthy, lush lawn is the greatest weapon against crabgrass. If you just let go of it, then you are basically inviting weeds or other pests to your lawn. In that situation, crabgrass would be the least problem of yours. So, keep your lawn healthy and lust.

Read more:


As you all know, lawncare is quite significant. For this, you need best crabgrass killers as well. If you know what you actually need, you can save yourself from spending on lots of crabgrass killers within a short period of time. All of the above-mentioned products are the best ones available out there. These products work perfectly well in terms of pace and capability to prevent crabgrass from coming up to the surface.

Out of all products, the best crabgrass killer is the one from Compare-N-Save. If you are looking for an effective solution to eliminating crabgrass from your lawn, then this product is what you need. It works effectively and efficiently. If that’s not your type, then Green Gobbler crabgrass killer is the right choice for you. So, read all the product features along with pros and cons to find the best crabgrass killer for you.

In the end, it does not matter what product you go, you will definitely get rid of crabgrass from your lawn. If you found this article helpful, do not hesitate to share this information with other homeowners. Also, share your views or queries in the comment section below!

Click Here to Leave a Comment Below 0 comments