
If you’re tired of battling stubborn weeds that ruin your lawn’s pristine look, you’re not alone. A lush green lawn is a source of pride for many homeowners, but pesky weeds can quickly turn that dream into a nightmare.
That’s where the right herbicide comes in. With so many options on the market, finding the best lawn herbicide can feel overwhelming.
1. GrassOut Max Weed Killer: Targets 50+ Grassy Weeds Without Harming Desired Plants

GrassOut Max Weed Killer effectively targets over 50 types of grassy weeds while ensuring the safety of your desired plants. This powerful formula allows you to eliminate pesky weeds without compromising the health of your grass or flowers.
GrassOut Max Weed Killer requires a bit of setup for the best results. First, measure the area you’re treating. This helps you calculate the necessary square footage to determine how much solution to mix based on the treatment needed.
Depending on the crop, you typically use 4-16 oz. per acre combined with 16-32 oz. of a non-ionic surfactant.
GrassOut Max Weed Killer is highly versatile in application methods. You can apply it using various spray equipment such as a backpack sprayer, hand pump sprayer, or a ride-on sprayer.
Always ensure thorough coverage of the foliage for effective results, and avoid applying before rain is expected within one hour.
GrassOut Max also comes with specific instructions for avoiding damage to non-target crops. For best practices, don’t apply a post-emergent broadleaf herbicide within one day after GrassOut Max application.
GrassOut Max’s easy-to-use design simplifies the process. You just twist off the cap to the measuring chamber, fill it with the desired solution, and pour it into your application equipment.
- Package Dimensions: 8.78 x 7.72 x 2.17 inches; 1 Pounds
- Date First Available: October 25, 2023
- Best Sellers Rank: #11,218 in Patio, Lawn & Garden; #123 in Weed Killers
- Customer Reviews: 4.0 out of 5 stars, 190 ratings
2. Scotts Turf Builder Weed & Feed5: Weed Killer and Lawn Fertilizer for Healthy Growth

Scotts® Turf Builder® Weed & Feed5 is your go-to solution for a lush, weed-free lawn. This dual-action product combines weed control and lawn fertilization using WeedGrip™ Technology to effectively eliminate over 50 listed weeds, including common nuisances like clover, dandelion, and plantain.
Scotts® Turf Builder® encourages healthy grass growth by feeding your lawn, thickening its density to prevent future weed growth.
For optimal results, apply this product when weeds actively grow and temperatures stay between 60°F and 90°F.
Make sure your grass is damp from morning dew or watering, allowing the granules to stick to weed leaves for better absorption.
When it’s time to apply, using a Scotts® spreader ensures even coverage-set your rotary spreader to 3 ¾ or your drop spreader to 7 ¼. Avoid watering your lawn for 24 hours post-application and steer clear of applying if rain is forecasted within the same timeframe.
Also, remember to skip application on Creeping Bentgrass, St. Augustinegrass (including Floratam), Dichondra, Carpetgrass, or Lippia.
One 11.32 lb. bag effectively covers 4,000 sq. ft., providing a substantial reach for most residential lawns.
- Item Weight: 11.32 Pounds
- Item Form: Granules
- Coverage: 4,000 square feet
- Total Nitrogen (N): 26%
- Application Setting: Broadcast/Rotary Spreaders – 3 ¾, Drop Spreaders – 7 ¼
- Dimensions: 16.3 x 10.8 x 3 inches
3. Scotts Turf Builder Triple Action1: Combination Weed Control, Preventer, and Fertilizer

Scotts® Turf Builder® Triple Action1 offers a comprehensive solution for lawn care enthusiasts. It combines weed killing, prevention, and fertilization all in one convenient application.
This unique 3-in-1 formula effectively eliminates broadleaf weeds like dandelions and clover, while stopping crabgrass growth for up to 4 months. It also targets other grassy weeds, such as barnyardgrass and annual bluegrass.
Scotts® Turf Builder® Triple Action1 is suitable for various grass types, including Kentucky Bluegrass, Tall Fescue, and Zoysiagrass. For best results, apply it using a Scotts® spreader when dandelions are actively growing.
Ensure the grass is damp from dew or watering prior to application, which helps the product adhere to the weed leaves.
After application, water your lawn 24 hours later to wash the particles into the soil, aiding in the prevention of crabgrass and other weeds.
Safety precautions are important; keep the product out of reach of children and pets. Avoid skin and eye contact, and seek medical assistance if ingested.
- Kills various common weeds including dandelions, clover, and chickweed
- Prevents crabgrass and other grassy weeds for up to 4 months
- Coverage: A 33.94 lb. bag treats up to 12,000 sq. ft.
- Recommended application: Early spring when weeds are actively growing
- Implement with a Scotts Wizz or Whirl Spreader for even distribution
- Water in after 24 hours to activate the formula
4. 3 Way Max Weed Killer: Eliminate 50+ Weeds, Safe on Grass, Easy Mixing

3 Way Max Weed Killer effectively eliminates over 50 types of weeds while remaining safe for your grass. This herbicide is a go-to choice for homeowners aiming to maintain a lush lawn without compromising plant health.
3 Way Max recommends mixing 1.1 to 1.5 ounces per 1,000 square feet for optimal results. Applicators will find it easy to use with various spray equipment like backpack sprayers and hand-held sprayers.
It also works well when applied at a rate of 2 to 2.5 pints per acre, ensuring complete coverage of pesky weeds.
3 Way Max’s application process is straightforward. First, measure the area to be treated to determine your mix volume.
Then, prepare your spray equipment and mix the solution according to the recommended rates. Finally, apply the mixture, ensuring thorough coverage to maximize weed-killing effectiveness.
3 Way Max advises waiting 1-2 hours after application before allowing pets back into the treated area. This precaution ensures safety for your furry friends. Dispose of any empty containers properly to align with local regulations.
- Package Dimensions: 9.49 x 5.24 x 3.03 inches; 2 Pounds
- Date First Available: May 14, 2020
- Best Sellers Rank: #17,578 in Patio, Lawn & Garden; #164 in Weed Killers
5. Southern Ag Amine 2,4-D Weed Killer: Versatile Herbicide for Tough Weeds

Southern Ag Amine 2,4-D Weed Killer excels in controlling a wide range of tough broadleaf weeds and woody plants. This versatile herbicide uses a low, economical application rate of 1 to 4 pints per acre, making it ideal for larger areas.
Southern Ag Amine works effectively when applied as a uniform spray with a fan nozzle. For southern grasses, it’s recommended to apply 1 to 1.5 ounces per gallon to cover a 400 square foot area, while northern grasses require a similar rate for effective coverage.
It’s critical to avoid spray drift on desirable plants during application to ensure safety and prevent unwanted damage.
Southern Ag Amine also emphasizes safety precautions. Users must avoid contact with skin and eyes, keeping it out of reach of children and pets.
Avoid applying the product when wind is blowing towards sensitive plants or areas where people or pets congregate.
- Active Ingredients: Ag Amine
- Coverage: 5000 Square Feet
- Item Weight: 1 Pound
- Liquid Volume: 32 Quarts
- Item Form: Liquid
- Product Dimensions: 3 x 1.5 x 5 inches
- Unit Count: 32.0 Fl Oz
6. RM43 Concentrated Extended Control Weed Killer: Long-Lasting Weed Control Formula

RM43 Concentrated Extended Control Weed Killer is designed for optimal weed prevention. This powerful herbicide combines glyphosate and imazapyr, making it effective against a variety of unwanted growth, including grasses, vines, brush, and trees. It treats an impressive 17,297 square feet per gallon, providing ample coverage for large areas.
RM43 is rainfast within two hours, allowing for quick application and minimizing disruptions from weather. After spraying, there are no entry restrictions for pets or people once the product has dried, making it a convenient choice for busy homeowners.
You can expect long-lasting results, as RM43 provides protection for up to a year, ensuring your property stays weed-free with minimal effort.
RM43 is specifically formulated for non-crop areas like gravel paths, sidewalks, and driveways, so be cautious not to spray near desirable plants. Simply mix the concentrated solution with water and apply it to the locations where no vegetation is desired.
- Item Weight: 9.4 pounds
- Liquid Volume: 128 fluid ounces
- Item Form: Spray
- Active Ingredients: Glyphosate and imazapyr
- Coverage: 17,297 square feet
- Product Dimensions: 4.25 x 7.5 x 11.88 inches
7. Scotts Liquid Turf Builder with Plus 2 Weed Control: Liquid Fertilizer and Weed Killer

Scotts® Liquid Turf Builder with Plus 2® Weed Control effectively combines weed control with a nitrogen boost for your lawn.
This product targets common weeds like dandelions, clover, and poison ivy, promoting a healthy lawn while eliminating nuisances.
Scotts® Liquid Turf Builder is easy to use. Just connect it to your garden hose, turn on the water, and spray. It’s designed specifically for grass lawns, so be careful not to apply it around shrubs, trees, or flowers.
Scotts recommends applying their product when weeds are actively growing. To achieve the best results, avoid watering the treated area for 48 hours post-application.
You’ll start to see weeds curling within a few days, although some harder-to-control varieties might need a repeat treatment in 3 to 4 weeks.
Coverage is impressive, with one 32 fl. oz. container covering 6,000 sq. ft. for warm-season lawns and 4,000 sq. ft. for cool-season lawns.
This makes it a practical choice for homeowners looking to maintain a tidy, weed-free lawn with minimal effort.
- Product Dimensions: 4.75 x 9.75 x 2.43 inches; 8 ounces
- Date First Available: November 29, 2016
- Best Sellers Rank: #50 in Patio, Lawn & Garden; #4 in Garden Fertilizers
- Customer Reviews: 4.3 out of 5 stars (32,712 ratings)
8. Liquid Harvest Mesotrione: Pre and Post-Emergent Weed Killer for Lawn Care

Liquid Harvest Mesotrione is a powerful herbicide designed to control weeds in lawns and turf grass efficiently.
Liquid Harvest Mesotrione works effectively on various grass types, including Kentucky Bluegrass, Buffalograss, and St. Augustinegrass, making it a versatile choice for homeowners.
Liquid Harvest Mesotrione starts working immediately; however, it may take up to 2-3 weeks for full weed death to occur. Liquid Harvest Mesotrione prevents photosynthesis in unwanted plants, leading to their eventual demise.
Application of this herbicide can be done either via spot application or as a pre and post-emergent treatment.
For spot applications, just 1 teaspoon of Liquid Harvest Mesotrione mixed with 3 teaspoons of Liquid Harvest Surfactant and 2 gallons of water will cover up to 2,000 square feet.
For larger areas, the pre and post-emergent application involves using 4-8 ounces of Liquid Harvest Mesotrione, 9 ounces of Liquid Harvest Surfactant, and at least 30 gallons of water to treat an entire acre.
Combining these products with Liquid Harvest Lazer Blue spray pattern indicator ensures maximum effectiveness.
Liquid Harvest Mesotrione’s ease of use and effective formulation makes it a great choice for maintaining a weed-free lawn while promoting healthy grass growth.
- Package Dimensions: 4.45 x 3.03 x 1.69 inches; 8 ounces
- Date First Available: October 15, 2021
- Best Sellers Rank: #6,940 in Patio, Lawn & Garden; #83 in Weed Killers
- Customer Reviews: 4.3 out of 5 stars from 777 ratings
9. Ortho WeedClear Weed Killer for Lawns: Efficient Dandelion and Clover Control

Ortho WeedClear Weed Killer for Lawns provides effective control of troublesome weeds like dandelions and clover while protecting your grass when used as directed.
This concentrated formula kills over 250 major broadleaf weeds down to the root, ensuring thorough eradication.
Ortho WeedClear works by penetrating the leaves of weeds and distributing throughout the plant. It produces results in just a few hours with a single application, making it a go-to option for homeowners seeking fast-acting solutions.
For optimal effectiveness, apply the product during the spring or fall when weeds are actively growing and temperatures remain below 90°F.
Ortho’s formulation features a rainproof guarantee within one hour after application, allowing greater flexibility in different weather conditions.
This herbicide can be used on various lawn grasses, including Zoysiagrass, Centipedegrass, and Kentucky Bluegrass.
Mix 2 fl. oz. of the concentrate per gallon of water for northern lawns or 1 fl. oz. for southern lawns to spray your entire yard effectively.
Safety is a priority, so it’s important to ensure that people and pets stay off treated areas until the spray has dried.
With its extensive coverage of up to 64,000 square feet per gallon, Ortho WeedClear stands out as a highly efficient choice for tackling invasive weeds.
- Item Weight: 9 Pounds
- Liquid Volume: 1 Gallons
- Item Form: Spray
- Active Ingredients: Herbicide
- Coverage: 64000 square feet
- Product Dimensions: 4.88 x 8.95 x 12 inches
- Unit Count: 128.0 Fl Oz
10. Spectracide AccuShot Refill: Convenient Application for Long-Lasting Weed Prevention

Spectracide AccuShot Refill offers an efficient way to tackle weeds in your outdoor space. This powerful herbicide works swiftly, targeting unwanted vegetation by killing from the leaves down to the roots, all while preventing regrowth for up to five months.
With visible results often appearing within the same day, it’s perfect for homeowners needing a quick solution.
Spectracide AccuShot Refill pairs seamlessly with the AccuShot Sprayer, providing precise control and a continuous spray feature.
It’s essential to apply this product during warm, sunny conditions when weeds are actively growing, ideally when temperatures exceed 60°F. The formulation is rain-safe within an hour, ensuring that unexpected weather won’t compromise your efforts.
Avoid contact with desired plants, grasses, shrubs, and trees to ensure they remain unharmed. After application, keep people and pets away from treated areas until the spray has dried.
This product helps you take command of your lawn care, making it an excellent choice for fast and effective weed control.
- Liquid Volume: 128 Fluid Ounces
- Coverage: up to 6,400 square feet
- Item Form: Spray
- Product Dimensions: 12.38 x 8.66 x 5.75 inches
- Item Weight: 8.43 pounds
Factors to Consider When Choosing a Lawn Herbicide
Effectiveness Against Common Weeds
Effectiveness varies with each herbicide. Some products target specific weeds, like dandelions and clover, while others handle a broader range, including grasses and woody plants.
Always check labels to see what weeds a product can effectively eliminate. Aim for herbicides that list numerous common nuisances to ensure comprehensive weed control, particularly if your lawn suffers from multiple types.
Safety for Pets and Children
Safety is crucial when selecting a herbicide. Look for products labeled safe for pets and children, as many contain chemicals that can be harmful. Always follow manufacturer instructions regarding application timing and re-entry intervals.
Some herbicides allow entry once dry, while others may require longer waiting periods. Prioritize using products designed for safety to keep your family and furry friends protected.
Application Method
Application method matters significantly. Some herbicides require spraying, while others can be spread using specialized equipment.
Consider ease of use and follow instructions for mixing and applying the product correctly. Uniform coverage is essential, so choosing a method that ensures thorough application will enhance product effectiveness.
Additionally, be mindful of weather conditions; avoid applying before rain and choose calm days to prevent drift.
Coverage Area
Coverage area can vary widely between products. Some herbicides treat thousands of square feet, while others are best suited for smaller areas.
Evaluate your lawn’s size and select a product that matches your needs without excessive leftover herbicide.
Proper coverage ensures efficient use and reduces waste, making it a key factor in your purchasing decision. Calculate your lawn’s area beforehand to choose the most suitable herbicide.
Tips for Applying Lawn Herbicides Successfully
Timing Your Application
Timing’s crucial for effective herbicide application. Apply when weeds actively grow, usually in spring or early fall, and when temperatures hit 60°F to 90°F for best results.
Avoid applying before a rain forecast, as precipitation can wash away the treatment or dilute its effectiveness. Early morning or late afternoon is ideal for application, ensuring reduced evaporation and increased absorption.
Proper Mixing Techniques
Proper mixing ensures maximum herbicide effectiveness. Follow the manufacturer’s instructions for dilution ratios, as they can vary.
Generally, mix the herbicide with water in a clean container, stirring gently to achieve an even solution. It’s crucial to use the right sprayer settings to ensure consistent coverage, applying the mix uniformly across the target area without over-saturation.
Environmental Considerations
Environmental factors play a significant role in herbicide application. Always check local regulations regarding herbicide use to minimize ecological impact. Avoid windy days to prevent drift onto non-target plants or areas.
Additionally, consider using protective gear to shield yourself and maintain a safe distance from children and pets during and after application. Keeping waterways in mind will also help protect essential ecosystems from potential chemical runoff.
FAQs
What Are the Main Types of Lawn Herbicides?
Lawn herbicides fall into two main categories: pre-emergent and post-emergent. Pre-emergent herbicides stop weed seeds from germinating, creating a barrier in the soil. They’re great for preventing weeds before they start.
How Long Does It Take for Lawn Herbicides to Work?
Lawn herbicides typically take 1 to 3 weeks to show results. Factors like product type, weed species, and environmental conditions influence how quickly you’ll see the effects.
Can Lawn Herbicides Harm My Grass?
Some lawn herbicides can harm your grass if not used properly. Selective herbicides target specific weeds while leaving desired grass unharmed, but misapplication can lead to damage.
When Is the Best Time to Apply Lawn Herbicide?
The best time to apply lawn herbicide varies by product type. Generally, pre-emergent herbicides work best in early spring before weed seeds germinate.