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The Best Weed Killers

Dean Clarke/Shutterstock.com
🕚 Updated June 2023

Weed growth can turn a beautiful outdoor space into an eyesore incredibly quickly. These weed killers are here to help keep your yard looking pristine.

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  Best for Lawns Best for Flower Beds Best for Gravel Best Pet-Safe Option Best For Large Areas
Turf Builder Triple Action
Groundclear Weed & Grass Killer
Round Up
Extended Control Weed & Grass Killer
Just For Pets
Weed Killer Spray
Our SummaryKill and prevent weeds and fertilize your lawn at the same time with this lawn helper.This weed killer is rainproof within two hours and is OMRI listed for organic gardens. It's also one of the fastest working weed killers you can buy.This 1-gallon bottle of weed killer offers visible results in just three hours that last for months.This all-natural weed killer is devastating to weeds but safe for your furry friends.This 41% glyphosate weed killing concentrate can be diluted to make up to 85 gallons of spray solution.
Pros✓ Prevents for up to four months
✓ Covers up to 4,000 feet
✓ Fertilizes lawn
✓ Ideal for large yards
✓ Battery-operated wand
✓ Works in challenging areas
✓ Visible results within three hours
✓ Rainproof in 10 minutes
✓ Kills weeds and prevents future growth
✓ Prevents growth up to four months
✓ Glyphosate-free
✓ Won't harm pets
✓ Vinegar-based but pleasant scent
✓ Long-lasting
✓ Creates up to 85 gallons of concentrate
✓ Rainproof in two hours
✓ Great value
Cons✗ May not be effective on all weeds
✗ May cause patches of dead grass
✗ Weeds may regrow✗ Leaky pumps✗ Pump can be difficult to use✗ Can be slow-acting
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15 Models Evaluated

7 Hours Researched

38 Reviews Analyzed

The Best Weed Killers

 Spraying Weed Killer Onto Weeds Growing On A Mud Path Through A Wild Garden
Dean Clarke/Shutterstock.com

There are so many different kinds of weed killers on the market, each with its specialties and uses, that finding the right option for your unique needs can be just as hard as eliminating your weeds in the first place. We made this guide to showcase the best weed killers to eradicate weeds in your lawn, gravel, gardens, and anywhere else the weeds are taking over.

Buying Guide for Weed Killers

Spraying organic, environmentally-friendly spirit vinegar onto the natural stone pavement (driveway, parking lot) to remove weeds

Why buy a weed killer?

Firstly, weed killers are highly effective in eliminating unwanted weeds that can detract from the appearance of your landscaping. By targeting and eliminating these weeds, a weed killer helps you maintain a clean and well-maintained outdoor space. Furthermore, using a weed killer can protect your plants from the negative impact of weed competition. Weeds can hinder the growth and health of your garden or lawn by taking the nutrients from the plants you actually want to grow, but with the application of a weed killer, you can ensure that your plants can thrive and flourish without being impeded by weeds. In addition to the aesthetic and plant health benefits, purchasing a weed killer can save you considerable time and effort. Manual weed removal can be a labor-intensive task, especially if you have a large area to maintain. However, a weed killer simplifies the process by swiftly and effectively eliminating weeds, allowing you to save valuable time and effort.

What should you look for in a weed killer?

  • Application: How and where you plan to use your weed killer is a huge factor in determining which product is right for you. If you will be using it on your lawn, be sure that it is safe for your region and type of grass. If you plan on planting something after killing weeds, look for a post-emergent option that allows you to do this. If you want to kill all vegetation in a certain area, find a weed killer that prevents weed growth after killing the weeds.
  • Ingredients: It is always a good idea to do your research and make sure your weed killers will not harm the environment or your family and pets. This is especially important when you use a weed killer in your vegetable garden, but is always good to think about, regardless of where it’s used. Thankfully, there are many great all-natural or organic garden-friendly weed killers and herbicides, as well as options with responsible ingredients that will not cause your family or the environment any harm.
  • Ease of Use: While some weed killers arrive ready to use, complete with an application wand, some arrive in the form of concentrates you will have to dilute yourself. Whatever your preference may be, make sure you have everything you need to apply your weed killer to weeds and undesirable vegetation while avoiding surrounding plant life.

Is weed killer safe for pets?

The safety of weed killers for pets can vary depending on the product and its ingredients. While some weed killers may pose risks to pets if ingested or exposed to, there are pet-friendly and environmentally friendly options available. When using weed killers, it’s crucial to carefully read and follow the manufacturer’s instructions. To ensure pet safety, consider the following precautions: restrict pets’ access to treated areas until the weed killer has dried or absorbed into the soil, follow recommended waiting periods before allowing pets back in treated areas, choose weed killers labeled as safe for pets or opt for natural/organic alternatives, store weed killers securely to prevent accidental ingestion or exposure, and rinse pets’ paws or fur with water if they accidentally come into contact with treated areas. Additionally, pet-friendly weed control methods like manual weed removal, mulching, or using weed barriers can be considered. Consulting with a veterinarian is recommended for personalized advice, especially if there are concerns about a pet’s health or specific sensitivities.

Our Picks for the Best Weed Killers

Best for Lawns

Scotts Turf Builder Triple Action

Kill and prevent weeds and fertilize your lawn at the same time with this lawn helper.

Pros:  With its three-in-one formula, this product is a game-changer for your yard. Say goodbye to pesky weeds while this built-in lawn weed killer effectively controls a wide range of common offenders, including dandelion, clover, dollarweed, and more. Not only does it combat existing weeds, but it also prevents crabgrass for up to four months, giving you peace of mind throughout the season. With its ability to target other grassy invaders like barnyard grass, fall panicum, and foxtail, you can enjoy a pristine lawn without the worry of unwanted guests. The best part? This powerful formula not only tackles weeds but also nourishes your lawn, promoting the growth of thick, green grass. Suitable for various grass types including Bahiagrass, Centipedegrass, Kentucky Bluegrass, and more, this versatile product ensures that every inch of your lawn receives the care it deserves. And with one 20-pound bag covering an impressive 4,000 square feet, you can achieve stunning results without breaking the bank.

Cons: In certain cases, the product did not effectively kill dandelions, clover, or other targeted weeds, leading to disappointment. There have also been instances where the application of this product caused damage to the lawn and did not effectively control weed growth. Some customers have experienced patches of dead grass, an increase in weed growth, or a strong chemical odor after using this product. Additionally, a few users found that the product clumped up when exposed to moisture, making it difficult to apply.

Bottom Line: For those looking to revive a neglected lawn, Scotts Turf Builder Triple Action is a solid first step toward rehabilitation. It’s essential to note that individual experiences may vary, and factors such as environmental conditions and application techniques can influence results.


Best for Flower Beds

Ortho Grounclear Weed & Grass Killer

This weed killer is rainproof within two hours and is OMRI listed for organic gardens. It's also one of the fastest working weed killers you can buy.

Pros: Ortho GroundClear Weed & Grass Killer2 is a reliable and effective solution for tackling stubborn weeds and grass in your yard. This product delivers fast results, with weeds dying quickly after application. It has successfully eliminated many kinds of weeds, even in challenging areas such as sidewalks, driveways, and fence lines. The battery-operated wand makes it convenient to apply, reducing strain on your hands. Additionally, the product is known for its long-lasting effects, preventing weed regrowth. It’s ideal for large yards, and a little goes a long way, making it a cost-effective choice. With its ability to quickly and effectively kill unwanted vegetation, this is a reliable option for maintaining a weed-free landscape.

Cons: Some have reported that the product did not deliver the promised results, with weeds regrowing within a short period of time. Additionally, there have been instances where the spray hose attachment was missing or the spray wand was broken, resulting in a frustrating user experience. Furthermore, there have been concerns about the effectiveness of the product, with reports of slow weed-killing action or the need to mix it with additional substances for better results.

Bottom Line: Ortho GroundClear Weed & Grass Killer2 is a trusted and efficient solution for tackling tough weeds and grass in your yard. With its fast-acting formula, it delivers rapid results, effectively killing weeds soon after application. Whether it’s on sidewalks, driveways, or fence lines, this product has proven successful in eliminating a wide variety of weeds, even in challenging areas.

Pros: For those seeking a weed killer that both effectively kills weeds and prevents future growth for up to four months, this product is for you. While you will want to keep this product away from your lawn, it is absolutely ideal for paved areas, gravel, and anywhere else where you don’t want plant life to flourish. The dual-action formula is designed to effectively kill existing weeds while also preventing new ones from growing for up to 4 months. This provides long-lasting weed control and helps to maintain a weed-free environment.  This versatile product can be used in various areas, including driveways, sidewalks, patios, fences, foundations, curbs, retaining walls, and along the edge of lawns. It is also suitable for decorative rock or gravel areas, making it a versatile solution for different outdoor spaces. One of the key benefits is its quick action. The product is rainproof in just 10 minutes, which means you won’t have to worry about rainfall diminishing its effectiveness. Additionally, visible results can be seen within 3 hours of application, providing a rapid solution to weed control.

Cons: Some have experienced issues with the packaging, such as leaks or faulty pump dispensers. This can result in product wastage or inconvenience during application. Additionally, there have been complaints about the effectiveness of the product, with some customers reporting that it did not kill weeds as expected or took a long time to show results. Furthermore, some customers have expressed disappointment with the performance of the product, claiming that it was not as strong or effective as they had hoped. They felt that other products with higher concentrations of Glyphosate provided better results, and they questioned the value of paying for a well-known brand name if the performance did not meet their expectations.

Bottom Line: This product offers a dual-action formula that kills existing weeds, prevents new ones from growing, and provides visible results in a short period. Its versatility and quick action make it a reliable choice for tackling weeds in various outdoor areas.

Best Pet-Safe Option

Just For Pets Weed Killer Spray

This all-natural weed killer is devastating to weeds but safe for your furry friends.

Pros: Looking for an effective weed killer that won’t harm your furry friends? Just For Pets Weed Killer Spray is a powerful and effective solution for eliminating stubborn weeds. It has a fast-acting formula, with weeds wilting and dying within hours of application. It has proven to be highly effective in various areas, including brick patios, pavers, and driveways, without causing harm to pets or children. The pet-safe and non-toxic nature of the product has been a major selling point. Additionally, the vinegar-based formula gives it a more pleasant smell compared to traditional weed killers. It is also glyphosate-free.

Cons: There have been reports of the pump being temperamental and challenging to use. These problems can hinder the user’s ability to apply the weed killer evenly and accurately, which may result in uneven coverage or inadequate weed control. To address the pump-related challenges, some users have opted to use their own spray bottles or alternative spraying mechanisms.

Bottom Line: Just For Pets Weed Killer Spray is a powerful and fast-acting solution for removing weeds while keeping your pets safe. Its effectiveness in eliminating weeds quickly and its non-toxic, pet-safe formula make it a popular choice among pet owners. With its glyphosate-free formula, this product is a reliable option for maintaining a weed-free environment without compromising the safety of your furry friends.


Best for Large Areas

Compare-N-Save Herbicide

This 41% glyphosate weed killing concentrate can be diluted to make up to 85 gallons of spray solution.

Pros: If you have weeds growing unfettered across large areas, Compare-N-Save Herbicide gives you the best bang for your buck without compromising in terms of performance. This concentrate is rainproof within two hours under normal conditions, and with the ability to create up to 85 gallons of ready-to-use spray, this concentrate offers excellent value for your money. Although you will want to wait a few days before expecting results, this herbicide reliably travels to the roots to kill grass and weeds where they run rampant. It’s also a post-emergent herbicide, meaning you can get right back to planting shortly after eliminating unsightly weed growth.

Cons: Some found it slow-acting and ineffective at killing weeds. In addition, some found the scent to be unpleasant and difficult to be around. This may not be effective at killing all types of weeds.

Bottom Line: Compare-N-Save Herbicide is a cost-effective solution for effectively tackling widespread weed growth. While it may take a few days to see results, this herbicide works by targeting the roots of grass and weeds, ensuring long-lasting eradication. Furthermore, it is a post-emergent herbicide, allowing you to resume planting activities soon after weed removal.

Final Thoughts

Weed killers play a crucial role in maintaining a healthy and visually appealing landscape. With a wide variety of options available, it’s important to choose a weed killer that suits your specific needs and preferences. Whether you opt for a selective herbicide that targets specific weeds or a non-selective one that eliminates all vegetation, it’s essential to follow the instructions carefully and consider factors such as safety, environmental impact, and effectiveness. Regular and proper application of weed killers can help keep unwanted weeds at bay, allowing your plants, flowers, and grass to thrive.

Meghan Herlihy Meghan Herlihy
Meghan Herlihy is a full-time writer for LifeSavvy and How-To Geek and has written across a wide variety of topics, genres, and formats, including radio talk shows, local sports journalism, and creative original fiction. She received her bachelor's degree in communications from Ithaca College and a master's in writing from Johns Hopkins University. When she's not writing, you're most likely to find her reading a book, petting every dog within eyesight, and indulging in her love of travel. Read Full Bio »
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