Skip to content

13 Best Weed Killers for a Lush, Weed-Free Lawn in 2024

If a lush, weed-free lawn is at the top of your 2024 lawn care to-do list, you’ll want to explore the 13 best weed killers the market has to offer. From fast-acting formulas to long-lasting solutions, there’s a product that caters to every type of weed and lawn. But before you make a purchase, you’ll need to ponder a few key factors that can markedly impact the effectiveness and safety of your chosen weed killer. Let’s plunge into and uncover the secrets to achieving the lawn of your dreams.

Bonide Captain Jacks Deadweed Brew 32 oz Concentrate

Bonide Captain Jacks Deadweed Brew 32 oz Concentrate

For gardeners looking for a fast-acting, versatile weed killer, Bonide Captain Jacks Deadweed Brew 32 oz Concentrate is a top choice. This non-selective herbicide effectively controls a range of weeds, including broadleaf and grassy varieties, within hours of application. Approved for organic gardening, it can be used around borders, driveways, and sidewalks – even in temperatures as low as 40°F. While it may not be as effective on established grasses or common mallow, the product’s easy-to-use spray application and waterproof formula make it a convenient option. Just keep in mind that you’ll need to reapply it with each new crop of weed and grass seeds. At $29,336, it’s a middle-of-the-road choice compared to other weed killers, but with a 4.3-star rating, it’s a reliable solution for your lawn and garden needs.

Best For: Gardeners looking for a fast-acting, versatile weed killer that can be used around borders, driveways, and sidewalks, even in cooler temperatures.

Pros:

  • Effective on a range of broadleaf and grassy weeds, including spurge, foxtail, and oxalis
  • Approved for organic gardening
  • Easy to apply using a standard hand-held or backpack sprayer

Cons:

  • Less effective on established grasses or common mallow
  • Requires reapplication with each new crop of weed and grass seeds
  • May be more expensive than some other weed killer options
  Get it now on Amazon.com

Roundup Ready-To-Use Max Control 365 with Comfort Wand

Roundup Ready-To-Use Max Control 365 with Comfort Wand

The “Roundup Ready-To-Use Max Control 365 with Comfort Wand” is an ideal choice for homeowners seeking a hassle-free weed control solution. This product features a 1% glyphosate formula that effectively kills weeds to the root and prevents new growth for up to 12 months. With its convenient Comfort Wand, you’ll enjoy continuous spray and extended reach for treating driveways, patios, sidewalks, and gravel areas. The no-mix formula guarantees quick and easy application, while the rainproof formula allows you to see results in just 12 hours. With a 4.5-star rating from over 9,000 customers, this Roundup product delivers reliable performance and value. Whether you’re tackling stubborn weeds or maintaining a pristine outdoor space, the “Roundup Ready-To-Use Max Control 365 with Comfort Wand” is a superior weed killer worthy of consideration.

Best For: Homeowners seeking a long-lasting, hassle-free weed control solution for driveways, patios, sidewalks, and gravel areas.

Pros:

  • Kills weeds to the root and prevents new growth for up to 12 months
  • Convenient Comfort Wand for continuous spray and extended reach
  • Rainproof in 30 minutes and visible results in 12 hours

Cons:

  • Contains glyphosate, which can be harmful to the environment and non-target plants
  • Limited to specific outdoor areas like driveways and patios
  • Potential health concerns with prolonged exposure to chemical ingredients
  Get it now on Amazon.com

BioAdvanced Brush Killer Plus, Ready-to-Use (1 Gal)

BioAdvanced Brush Killer Plus, Ready-to-Use (1 Gal)

Effectively eliminating tough brush, such as poison ivy, kudzu, and blackberry, makes the BioAdvanced Brush Killer Plus an ideal choice for homeowners seeking a powerful solution. This ready-to-use formula contains 0.8% Triclopyr, triethylamine salt, which targets and kills over 70 types of weeds and brush at the root systemically. The special penetrating formula provides rainproof protection within 4 hours, and you’ll see visual results in 1-6 weeks. While some users experienced slow results on certain weeds, the majority found the product highly effective, though a few reported no impact on specific types of brush. To get the best results, use the spray when the brush is actively growing and leafed out, and be cautious when applying near desired plants, as it can cause damage or death.

Best For: Homeowners looking for an effective solution to eliminate tough weeds and brush, including poison ivy, kudzu, and blackberry.

Pros:

  • Kills over 70 types of weeds and brush systemically at the root
  • Provides rainproof protection within 4 hours
  • Shows visual results in 1-6 weeks

Cons:

  • May not be effective on certain types of weeds or brush
  • Some users experienced slow results
  • Potential to cause damage or death to desired plants if not used carefully
  Get it now on Amazon.com

Ortho GroundClear Year Long Vegetation Killer1 Concentrate

Ortho GroundClear Year Long Vegetation Killer1 Concentrate

Killing weeds down to their roots is a breeze with Ortho GroundClear Year Long Vegetation Killer1 Concentrate. This fast-acting formula starts working immediately, delivering visible results in just 3 hours. Covering up to 600 square feet, it effectively kills weeds and grasses, providing up to 1 year of control. Versatile, it can be used on driveways, sidewalks, and even desert landscapes. While some customers found it effective but pricey, the product’s ability to cover a large area makes it a worthwhile investment for keeping your outdoor spaces weed-free. Just mix 24 fl. oz. with 1 gallon of water, and you’re ready to spray. With its rainproof formula, you can enjoy long-lasting weed control even after a downpour.

Best For: Ortho GroundClear Year Long Vegetation Killer1 Concentrate is best for homeowners and landscapers looking for an effective, long-lasting weed control solution for a variety of outdoor spaces.

Pros:

  • Kills weeds and grasses down to the roots
  • Provides up to 1 year of control
  • Versatile for use on driveways, sidewalks, and other hard surfaces

Cons:

  • Some customers found the product to be expensive
  • Mixed results reported by a few customers
  • May not be cost-effective for large areas
  Get it now on Amazon.com

Southern Ag Amine 2,4-D WEED KILLER, 32oz – Quart

Southern Ag Amine 2,4-D WEED KILLER, 32oz - Quart

Homeowners and gardeners seeking an affordable, yet powerful weed control solution will find the Southern Ag Amine 2,4-D Weed Killer a cost-effective choice. This 32oz quart delivers reliable results, controlling a wide range of broadleaf weeds and woody plants at a low application rate of just 1-4 pints per acre. With a versatile use across turf, pastures, and other landscapes, the product provides quick effects, often within 48 hours. While it’s not pet-friendly, the easy mixing instructions make it a breeze to use. However, you may need to adjust the concentration and apply it multiple times, especially in hot climates, to achieve ideal results. Overall, the Southern Ag Amine 2,4-D Weed Killer offers an efficient and economical solution to maintain a lush, weed-free lawn.

Best For: Homeowners and gardeners seeking an affordable, yet powerful weed control solution for broadleaf weeds and woody plants across turf, pastures, and other landscapes.

Pros:

  • Cost-effective with a low application rate of 1-4 pints per acre
  • Provides quick results, often within 48 hours
  • Versatile for use across various landscapes

Cons:

  • Not pet-friendly
  • May require adjusting concentration and multiple applications, especially in hot climates
  • Not effective for all users
  Get it now on Amazon.com

Preen Garden Weed Preventer – 5.625 lb. – Covers 900 sq. ft.

Preen Garden Weed Preventer - 5.625 lb. - Covers 900 sq. ft.

The Preen Garden Weed Preventer is a go-to choice for gardeners seeking an effortless solution to weed management. This 5.625 lb. granular product covers an impressive 900 sq. ft. and stops weeds before they even sprout, guaranteed for up to 3 months. It’s safe for use around over 200 established flowers, vegetables, trees, and shrubs, making it a versatile option for your garden. The flip-top applicator cap certifies easy application, and you can use it anytime during the growing season. Customers rave about its effectiveness in preventing weeds and reducing the need for tedious hand-weeding. To keep your beds weed-free all season, simply reapply every 9-12 weeks. With a 4.5-star rating from over 6,000 reviews, the Preen Garden Weed Preventer is a reliable and efficient solution for maintaining a lush, healthy garden.

Best For: The Preen Garden Weed Preventer is best for gardeners seeking an effective, hassle-free solution to prevent weeds from taking over their established gardens, flower beds, and landscaping.

Pros:

  • Stops weeds before they start for up to 3 months, reducing the need for time-consuming hand-weeding
  • Safe for use around over 200 different types of plants, making it a versatile option
  • Easy to apply with the flip-top applicator cap

Cons:

  • Not suitable for use on lawns or flower seeds
  • Requires reapplication every 9-12 weeks to maintain weed control
  • Rain does not wash the product out of the soil, so it may need to be adjusted when watering
  Get it now on Amazon.com

Roundup Concentrate Plus Weed and Grass Killer (16 oz.)

Roundup Concentrate Plus Weed and Grass Killer (16 oz.)

Roundup Concentrate Plus Weed and Grass Killer (16 oz.) is the ideal choice for those tackling large-scale weed and grass control projects. This potent formula kills tough weeds and grasses down to the root, with visible results in as fast as 9 hours. The easy-to-use measure cap guarantees convenient application, and the rainproof formula provides protection from the elements. Customers praise the product’s effectiveness, noting that it’s better than premixed solutions. While some users express disappointment with the product’s performance, the majority report excellent results. For the best experience, mix 6 fl. oz. of concentrate with one gallon of water and apply using a Roundup brand sprayer. With its expansive coverage and proven track record, this Roundup concentrate is a reliable option for reclaiming your outdoor space.

Best For: Roundup Concentrate Plus Weed and Grass Killer (16 oz.) is best for tackling large-scale weed and grass control projects in outdoor areas.

Pros:

  • Kills tough weeds and grasses down to the root
  • Provides visible results in as fast as 9 hours
  • Easy-to-use measure cap for convenient application

Cons:

  • Some customers report the product is not as effective as it used to be in killing the roots of weeds
  • The rainproof formula may not provide complete protection from the elements
  • Premixed solutions may be preferred by some customers over the concentrated formula
  Get it now on Amazon.com

Roundup Ready-To-Use Extended Control Weed & Grass Killer Plus Weed Preventer II with Comfort Wand

Roundup Ready-To-Use Extended Control Weed & Grass Killer Plus Weed Preventer II with Comfort Wand

For those seeking a hassle-free way to eliminate weeds and prevent their return for up to four months, the Roundup Ready-To-Use Extended Control Weed & Grass Killer Plus Weed Preventer II with Comfort Wand is an ideal choice. This dual-action formula kills existing weeds down to the root and prevents new ones from growing, guaranteed. The included Comfort Wand allows for precise application without bending over, and the formula becomes rainproof in just 10 minutes. With visible results in 3 hours, this Roundup product is a powerful and convenient solution for maintaining a weed-free driveway, sidewalk, patio, or decorative rock area. Its 4.5-star rating from over 18,500 customers and its ranking as the #153 best-selling weed killer further demonstrate its effectiveness and popularity.

Best For: Homeowners and gardeners looking to eliminate existing weeds and prevent new ones from growing for up to four months on driveways, sidewalks, patios, and other outdoor areas.

Pros:

  • Kills weeds down to the root, guaranteed
  • Becomes rainproof in 10 minutes for effective long-lasting results
  • Extendable Comfort Wand for precise application without bending over

Cons:

  • May need to reapply more frequently in high-weed areas
  • Can be harmful if not used according to instructions
  • May require protective equipment when applying
  Get it now on Amazon.com

Southern Ag Amine 2,4-D WEED KILLER, 32oz – Quart

Southern Ag Amine 2,4-D WEED KILLER, 32oz - Quart

Southern Ag Amine 2,4-D WEED KILLER is an economical choice for tackling a variety of broadleaf weeds in your lawn, pasture, or rangeland. At just $0.50 per ounce, this 32-ounce bottle can cover up to 5,000 square feet, making it a cost-effective solution. The low, 1-to-4 pints per acre application rate guarantees you get the most bang for your buck. Whether you’re battling dandelions, chickweed, or morning glory, this versatile weed killer can get the job done. Just be sure to dilute it properly and avoid spraying in hot, dry conditions for best results. While some users report mixed success, the majority find it effective at markedly reducing weeds over time. With its easy-to-use liquid formula, Southern Ag Amine 2,4-D WEED KILLER is definitely worth considering for your lawn care needs.

Best For: Homeowners and lawn enthusiasts looking for an affordable, versatile weed killer to treat broadleaf weeds in their lawn, pasture, or rangeland areas.

Pros:

  • Cost-effective at $0.50 per ounce, covering up to 5,000 sq ft
  • Effective against a variety of broadleaf weeds like dandelions, chickweed, and morning glory
  • Easy-to-use liquid formula that can be diluted before application

Cons:

  • Not pet-friendly, pets should be kept away until fully dry
  • May not work as well in hot, dry conditions
  • Some customers reported mixed results with certain weed types
  Get it now on Amazon.com

Ortho Weed B-gon Chickweed, Clover & Oxalis Killer for Lawns Concentrate (16 fl. oz.)

Ortho Weed B-gon Chickweed, Clover & Oxalis Killer for Lawns Concentrate (16 fl. oz.)

Ortho Weed B-gon Chickweed, Clover & Oxalis Killer for Lawns Concentrate (16 fl. oz.) is an effective solution for homeowners battling weeds like chickweed, clover, and oxalis in their lawns. This concentrate can cover up to 3,200 square feet and is rainproof in 6 hours. You’ll need to mix 1 fluid ounce of the product per gallon of water to treat 200 square feet. The active ingredients, Triclopyr and Triethylamine salt, target and kill the listed weeds while being safe for use on common lawn grasses like Buffalograss, Fescues, Kentucky Bluegrass, Ryegrass, and Zoysiagrass. Customers report the product is effective, easy to use, and works well with a weed sticker solution, though it may not work on all types of chickweed or some grasses. Follow the directions carefully to avoid damaging your lawn.

Best For: Homeowners looking to effectively kill chickweed, clover, and oxalis weeds in their lawns while avoiding damage to common lawn grasses.

Pros:

  • Effectively kills listed weeds like chickweed, clover, oxalis, ground ivy, speedwell, and wild violet
  • Rainproof in 6 hours after application
  • Can be applied to various lawn grass types including Buffalograss, Fescues, Kentucky Bluegrass, Ryegrass, and Zoysiagrass

Cons:

  • May not work on all types of chickweed
  • Can potentially kill or damage certain grass types
  • Doesn’t work as well on some weed varieties according to customer reviews
  Get it now on Amazon.com

Spectracide Weed & Grass Killer Concentrate, 64 fl Ounce

Spectracide Weed & Grass Killer Concentrate, 64 fl Ounce

The Spectracide Weed & Grass Killer Concentrate is a powerful solution for those seeking to eliminate stubborn weeds and grasses down to the root. This concentrate formula can be mixed with water and applied via a tank sprayer, providing visible results in as fast as 3 hours. Boasting a 4.6-star rating from over 4,800 reviews, this product is a customer favorite for its effectiveness, ease of use, and value. You can use it on driveways, walkways, and around trees and flower beds, but be sure to protect desirable plants with a piece of plastic or cardboard. Once applied, don’t disturb the treated vegetation for at least 7 days. With its rainproof formula and concentrated power, the Spectracide Weed & Grass Killer Concentrate is a reliable choice for maintaining a lush, weed-free lawn.

Best For: The Spectracide Weed & Grass Killer Concentrate is best for homeowners and gardeners looking to eliminate stubborn weeds and grasses from driveways, walkways, and around trees and flower beds.

Pros:

  • Kills weeds and grasses down to the root
  • Visible results in as fast as 3 hours
  • Rainproof in 15 minutes

Cons:

  • Cannot be used on or around edible feed or food crops
  • Requires a tank sprayer for application
  • Treated vegetation cannot be disturbed for at least 7 days after application
  Get it now on Amazon.com

Natural Armor Weed and Grass Killer (128 OZ. Gallon)

Natural Armor Weed and Grass Killer (128 OZ. Gallon)

Seeking a powerful yet eco-friendly weed killer, the Natural Armor Weed and Grass Killer (128 OZ. Gallon) could be your go-to solution. This natural, concentrated formula doesn’t contain glyphosate, making it safe for people and pets. It’s easy to use – just spray and enjoy the results. You’ll see fast-acting effects within hours, with weeds and grasses appearing torched. The formula works well on small and large weeds, though some may need reapplication. While the strong ketchup-like smell lingers for a couple of days, it’s a small price to pay for the product’s effectiveness and environmental friendliness. Just be sure to wear a mask and protective gear, and avoid spraying on dewy weeds. With its lasting results and versatile applications, the Natural Armor Weed and Grass Killer is a worthy investment for a weed-free lawn.

Best For: Homeowners and gardeners looking for an effective, eco-friendly weed killer that is safe for people and pets.

Pros:

  • Natural, glyphosate-free formula
  • Fast-acting results within hours
  • Versatile for use in various outdoor areas

Cons:

  • Strong ketchup-like smell that lingers for a couple of days
  • Potential for surface staining, requiring water cleaning
  • Some users found the sprayer to be poor quality
  Get it now on Amazon.com

Green Gobbler 20% Vinegar Weed & Grass Killer (1 Gallon Spray)

Green Gobbler 20% Vinegar Weed & Grass Killer (1 Gallon Spray)

Green Gobbler’s 20% Vinegar Weed & Grass Killer is the organic-conscious gardener’s go-to choice for eliminating weeds and grasses without toxic chemicals. This OMRI-listed product is made from corn grown in the USA and boasts a 20% acetic acid formula, four times stronger than regular table vinegar. It works quickly, with full desiccation in under 24 hours, effectively tackling crabgrass, dandelions, clover, and more. Users praise its natural, organic ingredients, though some experienced skin irritation due to the product’s caustic nature. While the sprayer may not always function as expected, Green Gobbler provides a glyphosate-free, non-toxic solution for your lawn and garden. Just remember to use eye protection and rubber gloves to avoid any unwanted burns or damage.

Best For: Green Gobbler 20% Vinegar Weed & Grass Killer is best for organic-conscious gardeners looking to eliminate weeds and grasses without using toxic chemicals.

Pros:

  • Certified for organic use and OMRI listed
  • Effectively kills weeds and grasses in under 24 hours
  • Made from corn grown in the USA, with a 20% acetic acid formula

Cons:

  • Can cause skin irritation and burns if used improperly
  • Sprayer may not always function as expected
  • Some users found the product ineffective on perennial grass
  Get it now on Amazon.com

Factors to Consider When Choosing Weed Killers

When selecting a weed killer, consider the active ingredients that’ll work best for your needs. Think about the application method that suits your situation – sprays, granules, or other forms. Also, look at the coverage area and environmental impact to guarantee cost-effectiveness.

Active Ingredients

When selecting a weed killer, the active ingredient is a crucial element to ponder. Glyphosate, a non-selective herbicide, can eliminate most plants, including weeds and desirable vegetation. Triclopyr, a selective herbicide, targets broadleaf weeds and suits lawn care. 2,4-D, another selective herbicide, also targets broadleaf weeds and often combines with other herbicides.

Diquat, a fast-acting non-selective herbicide, can kill weeds and grasses, making it ideal for spot treatments and large-scale applications. Imazapic, a residual selective herbicide, targets grassy weeds and provides long-term control when applied to the soil. While the active ingredient in Natural Armor Weed and Grass Killer isn’t specified, it’s environmentally friendly. Green Gobbler’s 20% acetic acid formula is four times stronger than table vinegar.

Glyphosate-free options like Green Gobbler offer an alternative, though they may require more frequent applications. The effectiveness of any active ingredient depends on factors like weather, weed type, and sunlight exposure. Carefully consider the active ingredient and its potential impact when choosing a weed killer.

Application Methods

Typically, spray application remains the most common method for weed killers, enabling easy coverage of expansive areas and precise targeting of individual weeds. Granular weed killers, applied directly to the soil, can be effective for larger areas, but may require more product and can be affected by weather conditions. Concentrated weed killers offer a cost-effective option for large areas, but require mixing with water and more effort. Ready-to-use weed killers are convenient for small areas, but may be more expensive and less environmentally friendly.

Other application methods like injection, soil drench, or foliar spray can be used, depending on the product and target weeds. Spray triggers can work well, but may cause finger soreness, so consider alternative sprayers. Ideal conditions for peak effectiveness include dry weeds, sunny weather, and hot temperatures. Protecting yourself with masks and gloves is vital, and take care as some products can stain surfaces, though they can be washed off with water.

Coverage Area

The coverage area of a weed killer is a key consideration when selecting the right product for your needs. It refers to the amount of space that can be treated with a single application or bottle, often measured in square feet. This is vital – you’ll want to choose a product that can effectively cover the entire area you need to treat.

Products with larger coverage areas may be more cost-effective and convenient, but they may also require more mixing or application, which can be time-consuming. Concentrated formulas often require dilution with water, affecting the overall coverage area, so be sure to follow the instructions closely.

Check the product label to determine the exact coverage area. More concentrated formulas typically require less product to cover the same space. Consider the size, type, and density of the weeds, as well as the surface you’re treating, to guarantee you have enough product. Following the application rates and coverage area guidelines is key for effective and efficient weed control.

Environmental Impact

When choosing a weed killer, it’s essential to ponder its environmental impact. Glyphosate, a common ingredient, has links to cancer and health issues, so eco-friendly alternatives are necessary. Weed killers have contributed to declining pollinator populations and can contaminate soil and water, affecting ecosystems. Organic weed killers are a safer choice as they break down quickly and don’t persist. Consider pet and wildlife safety too, as some products can harm them. The environmental impact of a weed killer matters – it can affect soil, air, and water quality, as well as beneficial insects and microorganisms. Glyphosate has been linked to bee declines and is a probable carcinogen. Organic weed killers, on the other hand, are biodegradable and non-toxic, maintaining soil health. Always follow usage instructions to minimize environmental impact. Prioritizing eco-friendly weed control is pivotal for a healthy, sustainable lawn.

Cost-Effectiveness

When choosing a weed killer, the cost-effectiveness is a crucial aspect to ponder. The cost depends on the size of the area, the weed type, and the active ingredient concentration. Higher concentrations may be more cost-effective long-term, but require more water for coverage. While ready-to-use options eliminate mixing, concentrates can be cheaper. Balance the weed killer’s cost against manual removal or other methods like mulching. Some require repeated applications, increasing costs, while others last longer with a single use. Consider the product’s effectiveness, safety, and environmental impact too. Highly effective weed killers that need less frequent reapplication may be more cost-effective despite higher upfront costs. Larger areas require more product and more frequent applications, impacting cost-effectiveness. Evaluating these factors guarantees you choose the most cost-effective weed killer that meets your needs.

Frequently Asked Questions

How Do I Dispose of Leftover Weed Killer Safely?

To dispose of leftover weed killer safely, consult your local hazardous waste facility. Don’t pour it down drains or onto the ground – this can harm the environment. Follow the disposal instructions on the product label carefully.

Can I Use Weed Killer on Edible Plants in My Garden?

Applying “plant defoliant” to your edible garden? Not advisable, my friend. Those chemicals can leave a bitter, toxic taste in your harvest. Stick to manual weeding or natural alternatives to keep your homegrown goodies safe and delicious.

What Are the Long-Term Effects of Weed Killers on the Environment?

Using weed killers can have long-lasting environmental impacts, like harming beneficial insects, contaminating soil and water. Consider more eco-friendly alternatives that don’t rely on harsh chemicals to maintain a healthy garden and minimize your environmental footprint.

Do Weed Killers Pose Any Health Risks to Pets or Children?

Weed killers? Oh, they’re perfectly safe for your pets and kids! Just let them romp and play in the freshly sprayed grass. What could possibly go wrong? But seriously, weed killers can pose serious health risks, especially for young, vulnerable bodies.

How Can I Minimize the Use of Chemical Weed Killers in My Yard?

To minimize chemical weed killers, you can hand-pull weeds regularly, use organic mulch to suppress growth, and overseed your lawn to encourage thick, healthy grass that outcompetes weeds. Try to limit chemical treatments to spot applications when necessary.

Conclusion

Consider your lawn’s unique needs, budget, and personal preferences when choosing a weed killer. Do you want a fast-acting formula or a long-lasting solution? A natural product or a chemical-based one? Whichever you choose, these top 13 weed killers can help you achieve the lush, weed-free lawn of your dreams in 2024.