6 Best Weed Killer for Lawn Reviews in 2019 | Safe for Grass or Broadleaf, Spray or Liquid

Before you start any weed control program, you need to identify which types of weeds you’re trying to get rid of. Each requires different products and application methods, but we've reviewed and provided detail write ups about the best weed killer for lawns to use for various situations.

Best Weed Killers for Lawns 

4.7/5

  • It is eco-friendly, natural and safe
  • This product is derived naturally from corn
  • Green Gobbler is 6 times more concentrated than your regular vinegar

[BEST FOR THE MONEY]

2. Roundup Max Control 365 Ready-to-Use Comfort Wand Sprayer

4.5/5

  • Easy and convenient to use
  • Doesn't hurt your hand during application
  • Extendable cord

[GRASS FRIENDLY WEED KILLER]

3. Preen Garden Weed Preventer

4.3/5

  • Excellent weed killer for certain grasses in lawns, golf courses, and pastures
  • Convenient for using where vegetables and plants are present
  • Great value for money and easy to use

4.3/5

  • Super concentrated
  • One of the most cost-effective weeds and grass killers available
  • Perfect for sidewalk and driveway cracks

5. Ortho Weed B Gon'

4.7/5

  • The 2.5-gallon container is enough to treat up to 435,600 square feet
  • A cost-effective product that efficiently kills the roots of weeds
  • Great rainfast characteristics

4.3/5

  • Dual action formula
  • Kills existing weeds to the roots without hassle
  • A weed preventer which lasts for 4 months

What is the Best Weed Killer For Lawns?
General Guidelines

  • If possible, buy concentrated formulas because they’re much cheaper than premixed types.
  • Mix only what you need, and use it within three days of mixing. Once you mix herbicides with water, they lose their effectiveness in a short time.
  • Keep these sprays in a cool place and protect them from freezing to make sure they stay effective for a long time.
  • Protect your decorative plants with plastic or cardboard during lawn treatments. Even just a little overspray can damage or kill your plants.
  • Some lawn grasses, especially “warm weather” ones found in the Sun Belt, can be harmed or even killed by broadleaf herbicides. Be sure to read the label to find out which grass types are vulnerable.
  • Apply the best weed killers for lawns when the grass is slightly damp or dry, and avoid applying during hot weather or high humidity conditions.
  • For best results, apply in the morning or early evening.
  • Some formulas need application when there’s no rain in the forecast for 24 to 48 hours.
  • Always wear socks, shoes, long pants, a long-sleeve shirt, gloves, and glasses to keep the liquid weed killers off your skin and out of your eyes.
  • Keep your kids and pets and off your lawn for at least 48 hours after application.
  • Water the area well to rinse, and let it dry.
  • To keep safe, always read the label for special warnings about toxicity.

Some lawn care treatments are time sensitive, while others can be done anytime during the growing season.

Broadleaf weeds, for example, include any weed that has leaves, such as dandelions, clover or creeping Charlie (ground ivy). For these you need broadleaf weed killer.

The key to killing weeds is to use a suitable weed killer and apply it with the smallest applicator needed to do the job. That’ll not only save you time and money but also keep you from needlessly getting chemicals into the environment.

Broadleaf herbicides are extremely effective, provided they you use them according to the directions on the container or user manual. Like with all weed killers for grass, you should pay special attention to the moisture, temperature and the wind limitations.

Most liquid weed exterminating products only work in temperatures between 65 and 85 degrees F. At higher temperatures, the chemicals will vaporize before the weeds can absorb them. At lower temperatures, the weeds aren’t growing fast enough to absorb the chemicals.

No matter how healthy your lawn is, a few isolated weeds might pop up. That doesn’t call for a whole yard weed killer treatment. Instead, you should spot-treat the weeds with a small, trigger-controlled, pump-up pressure sprayer with a selective weed killer.

If your crops or other plants are infested with insects, read our best insecticides reviews.

Is Weed Killer Safe for Grass?

If you apply non-selective killers with your best backpack sprayer, you’ll kill everything in the area, including your lawn and any other plants. So, the best way to kill the weeds while protecting surrounding plants is by wiping the grass blades with the non-selective herbicide. Alternatively, you can use a weed killer that doesn't kill grass, depending on your needs.

Responsible lawn care also includes your own protective measures. You need to wear a cloth glove over a plastic or rubber chemically resistant glove to protect your skin. Dip your gloved hand into the weed killer and then simply grab the blades near the base and pull the best herbicide you have in your arsenal over the grass blades.

Don’t worry about coating every single blade. Depending on the type of weed, the chemical will absorb into the plant, make its way down to the roots and kill the entire plant. Most will die in a few days, but stubborn weeds may need repeated treatments with best weed control products.

Best Weed Killer For Lawns Reviews

Editor Rating:

4.7/5

Green Gobbler ULTIMATE VINEGAR 30% Concentrate

Green Gobbler ULTIMATE VINEGAR Concentrate is the most effective liquid weed killer and one of the best products from Green Gobbler.  It is made out of 30% vinegar and simply burns out unwanted vegetation out instantly and is a perfect yard weed killer since it is also yard safe.


This organic weed killer is non-selective, but you can plant new seeds safely one day after because the vinegar evaporates completely within a few hours. It vanishes really fast if it is warm outside.


Like most organic herbicides, it is safe to use around children and pets, and it can be used in your vegetable garden as well. White distilled vinegar is the most common type of vinegar in American households.


It is made from grain-based ethanol which is converted to acetic acid and diluted to preferred acidity with water. Well, in this case, it is converted into a 30% vinegar concentrate which is effective weed killer but also a cleaning liquid in and around the home.


If your garden is infested by marsh marigolds, for example, you’ve noticed that this weed is very difficult to destroy. It has many survival strategies as regards its seed, roots and the very small bulbs which cluster around the roots. This product will kill the tops of weeds. It is non-selective, however, and will severely damage anything it is put on.


It has nothing but excellent results with Nutsedge, as well. Nutsedge is a perennial, grass-like weed that thrives on poorly drained sections of your garden and counts on warm weather to grow faster. Once you apply Green Gobbler, every single leaf will be dead and crispy brown in less than a day.


Hand weeding sometimes turns out to be a useless waste of time and energy. In addition, not all the gardeners and homeowners are willing to use herbicides. Green Gobbler ULTIMATE VINEGAR Concentrate This product is an eco-friendly product recommended for controlling broadleaf weeds.


While it does not destroy the bulbs, light spraying on new growth will do wonders and it’s an easy task. It does not require much product or time and it will keep the weed under control. You will have the extra time and attention to devote to other gardening jobs.

Things We Liked


  • It is eco-friendly, natural and safe
  • This product is derived naturally from corn
  • Green Gobbler is 6 times more concentrated than your regular vinegar
  • It guarantees hundreds of uses
  • 300 grain white distilled vinegar
  • This weed killer is great for your garden, home and more

Things We Didn't Like


  • The strong vinegar odor might bother you


2. Roundup Max Control 365 Ready-to-Use Comfort Wand Sprayer

Editor Rating:

4.5/5

Sometimes the most irritating aspect of the best weed killers for lawns is the application process. Fortunately, Roundup developed a unique wand that allows you to spray your drive and garden without hurting your hand. This is ideal to target large areas as you don’t have to continuously spray the device to use the weed killer. Plus, the cord is extendable so you can reach your entire garden without having to get in close contact with the solution. This design is also useful as you can place the product on the floor and not have to hold it as you navigate around your garden.

This product is convenient to use. Merely extend the wand and spray on areas prone to weeds to prevent them from growing back. This unique formula ensures that weeds won’t return within a year, so you don’t have to constantly keep on top of using this weed killer to see results.

We love that this is suitable for an array of materials and environments, such as gravel areas, patios, driveways, and sidewalks. The nozzle is precise so you can reach difficult zones such as in-between the cracks in pavements. After applying the solution, it’s rainproof within 30 minutes, so we recommend checking the weather before using this solution. 12 hours later, the mixture gets to work and you’ll see fewer and smaller weeds in your garden.









Things We Liked


  • Easy and convenient application that doesn't hurt your hand
  • Kills weeds and not the lawn
  • Extendable cord for large areas
  • Starts working immediately

Things We Didn't Like


  • Takes around 12 hours to get to work

3. Preen Garden Weed Preventer 

Editor Rating:

4.3/5

Southern Ag 2,4-D Amine Weed Killer

Preen Garden is one of the best brands for preventing new weeds from growing with quick and effective results. This isn’t designed to kill previous weeds, but is designed with people who grow fruits and vegetables in mind. Its unique formula works by covering the grounds around trees and shrubs to prevent new weeds from sprouting. 


After one use of this product, you’ll notice that your current greenery flourishes larger and brighter than before without any damage. Some weed killers can be so harsh that they affect plants surrounding weeds, but Preen Garden is dedicated to helping you have a colorful garden you’re proud of.


Preventing weed regrowth isn’t too time-consuming and vigorous either, as this solution puts in most of the work for you. Simply coat the affected areas and leave the formula to work its magic. Shockingly, not all weed killers are designed to get wet, but this product is waterproof so you don’t need to constantly apply this product after it’s been raining.


Unlike some of the other best weed killer for lawns in this article, Preen Garden Weed Preventer. The manufacturer suggests applying the product every 9-12 weeks to keep on top of weeds, though this is more of a guideline for larger gardens.


It can be daunting to use a weed killer in a garden filled with flower seeds and vegetables as you’ll be concerned the formula will contaminate your currently greenery. Fortunately, Apply Preen Garden Weed Preventer is harsh on weeds but gentle on plants. But to be extra cautious, apply the solution after plants have reached 2-3 inches tall to affect their growth. However, you can also apply this weed killer to fresh soil to prevent any weeds from forming in the first place.








Things We Liked


  • Quick and easy results
  • Suitable to use where plants and vegetables are present
  • Protects your grass and keeps it healthy

Things We Didn't Like


  • Have to wait until plants have grown to use this product

Editor Rating:

4.3/5

Compare-N-Save Concentrate Grass and Weed Killer

Concentrate Grass and Weed Killer from Compare-N-Save contains 41% glyphosate. This product is effective against most weeds. If broadleaf weeds have been threatening to take over your beautiful lawn, hedge or driveway, Compare-N-Save Concentrate will get rid of the weeds straight from the root.


Since glyphosate is a post-emergent herbicide with no residual activity, it is safe for treating gardens. You can use it while planting or reseeding to slow weed growth. Glyphosate only works on actively growing weeds and plants, so you will not get results as a pre-emergent weed killer as it will not kill seeds or dormant weeds.


This product works slowly over the course of several days, up to a week or even longer. It inhibits certain plant enzymes that are required for plant life function. In both dry and wet weather, Compare-N-Save will act furiously. It will spread really well on lawns, which enhances its effectiveness.


Some weed killers are bound to cost you quite a lot of money in the long run. With Compare-N-Save Concentrate, this is not the case. This product is affordable and each pack totals to about 85 gallons of a solution which can be used to treat up to 25,000 square feet.


In addition, while most weed killers are only effective during dry and sunny months and lose their potency in cold weather or during rainy seasons because of their low-grade formulae, Compare-N-Save Concentrate doesn’t. It does the job well even if you apply it a few hours before the rain. It will retain its potency throughout rainy seasons.


This product will not discriminate on its plant victims, so you need to be very careful. It will kill all the plants you accidentally spray in larger dosage.


This concentrate is 41% so once a certain saturation level is reached within the weed, applying more glyphosate will not accelerate obliteration of weeds. It is more effective to treat the unwanted plants several times with a 2% solution over the course of a month than to treat them once with a stronger solution.

Bear in mind that this is a concentrate, so don't pour it directly into your sprayer. You'll be wasting the product without getting more efficiency.

Things We Liked


  • Super concentrated
  • One of the most cost-effective weeds and grass killers available
  • Perfect for sidewalk and driveway cracks
  • It is rain-proof in 2 hours
  • This concentrate covers over 25,000 sq. ft
  • It makes up to 85 gallons of ready-to-use spray
  • Works great for the price

Things We Didn't Like


  • It takes some time before the results set in

5. Ortho Weed B Gon' 

Editor Rating:

4.7/5

If you’re looking for a solution that’s tough on weeds but kind on grass, Ortho Weed B Gon’ is a great product we highly recommend. Its formula is dedicated to killing tough weeds that appear within your lawn, though your lawn remains untouched and undamaged.


For the best results, apply this solution as the weeds are actively growing to prevent them from sprouting out even more. From the first spray, this product gets to work, though it needs to remain within six hours of application to continue working. Bear in mind the temperature too, as this formula works best under 90 degrees and when there’s less wind present to prevent the solution blowing onto other plants.

There’s no desired frequency to apply this solution, but we suggest spraying your lawn each time you see a weed pop up. Some people like to apply this product every few weeks to prevent any regrowth, though this depends on the type of weeds you have present. For the best results, accurately measure the area you’re targeting and spray the weeds at the roots. Ortho Weed is precise enough to target individual weeds.






Things We Liked


  • A variety of application methods that are all successful
  • Precisely targets weeds
  • Excellent value for money

Things We Didn't Like


  • Formula only works in set weather conditions

Editor Rating:

4.3/5

Roundup 5107300 Extended Control

Roundup 5107300 Extended Control comes in a container with a trigger sprayer. It acts as a weed preventer for up to 4 months. This product is rainproof in 10 minutes and gives visible results in 3 hours.


It is advertised as guaranteed to kill weeds to the root so they don’t come back. This is achieved by the product being absorbed through the leaves and then going all the way to the root for a total weed kill.


It offers a simple way to keep your driveway, patios and mulched beds looking good and weed-free. If (for any reason) you are not satisfied after using their product, the manufacturer offers to refund the purchase. All you need to do is send them original proof of purchase.


This is a trusted weed killer among homeowners, garden enthusiasts as well as professionals. It features an affordable dual action formula and kills weeds efficiently. It also prevents weed growth, which will save you time and money in the long run.


This dual-control weed and grass killer is easy to use. If you are tired of mixing concentrates, this product is just the right thing for you. It comes pre-mixed in a bump and go sprayer so you can use it out of the box.


You don’t need to calculate ratios or spend additional amounts of equipment such as gloves to use this product. Roundup 5725070 control weed and grass killer is marketed as environmentally-friendly and its ingredients as safe and non-irritant.


It is also rainproof in just 10 minutes. Hopefully, this will also be a hassle-free choice for other areas around your lawns, such as driveways, fences, fountain areas, and patios.

Things We Liked


  • Dual action formula
  • Kills existing weeds to the roots without hassle
  • Prevents new weeds from growing for up to 4 months
  • Pre-mixed in a container with a trigger sprayer

Things We Didn't Like


  • Not suitable for lawns, fruits or vegetable gardens – it will kill all the plants there