Maintaining a beautiful lawn can be tough, especially when weeds keep popping up. They steal nutrients from your grass, eventually making it hard for your lawn to stay green and healthy. If you’ve tried pulling them out by hand, you know how frustrating it can be when they just keep coming back.
The key to keep your lawn weed-free is to choose the right week killer. With so many products out there, it can be confusing to pick one that works. In this guide, we’ll break down the best weed killers for your lawn, so you can enjoy a lush, beautiful yard without the hassle. Before you buy, check out the top features that you should look for:
- Type Of Weed Killer: Choose between selective herbicides for specific weeds or non-selective for broad coverage. Selective types are best for targeting without harming grass.
- Active Ingredients: Opt for ingredients suited to your needs. Glyphosate is strong but can damage grass; 2,4-D preserves grass while eliminating weeds.
- Formulation: Select the right form liquid, granule, or spray based on ease of application and area size. Liquids are versatile for large areas; granules are ideal for precise applications.
In this guide, we’ve highlighted the best weed killers for lawns. Refer to our “Buying Guide” for additional insights.
9 Best Weed Killers For Lawns Table
| Best Weed Killers for Lawns | Type of Weed Killer | Active Ingredients | Buy Now |
|---|---|---|---|
| Scotts Weed Killer | Selective | 2,4-D 1.220%, Mecoprop 0.081% | Check On Amazon |
| Compare-N-Save Weed Killer | Non-selective | Glyphosate 41% | Check On Amazon |
| Green Gobbler Weed Killer | Non-selective | 20% Acetic Acid | Check On Amazon |
| Spectracide Weed Killer | Selective | Nitrogen, unspecified weed-killing agents | Check On Amazon |
| RM43 Weed Killer | Non-selective | Glyphosate 43%, Imazapyr | Check On Amazon |
| Ortho Weed Killer | Selective | Triclopyr, Triethylamine salt | Check On Amazon |
| Roundup Weed Killer | Selective | MCPA, Quinclorac, Dicamba, Sulfentrazone | Check On Amazon |
| Natural Armor Weed Killer | Non-selective | Acetic Acid | Check On Amazon |
| Sedgehammer Weed Killer | Selective | Halosulfuron-methyl 5% | Check On Amazon |
9 Best Weed Killers For Lawns Reviews
1. Scotts Weed Killer
Best For: Lawns needing nourishment and broadleaf weed control
With dual-action granular technology, this weed control solution from Scotts not only eliminates weeds but also nourishes your lawn. It targets over 50 common weeds, including stubborn types like dandelion, clover, and plantain. Best applied with a broadcast spreader on wet grass, the product works optimally when used in temperatures between 60°F and 90°F, ensuring the granules effectively adhere to the weeds.
The product is compatible with a variety of grass types including Bahiagrass, Bermudagrass, Bluegrass, Fescue, Ryegrass, and Zoysiagrass, but is not suitable for Floratam St. Augustinegrass. It covers up to 5,000 square feet and is rainproof in 24 hours, preventing runoff after application. Scotts Weed Killer promotes a thicker, greener lawn by not only killing existing weeds but also preventing future ones.
Key considerations include its environmental impact and the need for careful handling due to its chemical content. Users should follow specific guidelines for temperature and moisture during application to maximize effectiveness and minimize potential harm to non-targeted plants. Despite these precautions, Scotts Weed Killer remains a popular choice for its efficiency and ease of use in maintaining weed-free lawns.
Specifications:
- Type: Granule
- Coverage: 5,000 sq. ft.
- Active Ingredients: 2,4-D 1.220%, Mecoprop 0.081%
- Application Method: Broadcast spreader
- Ideal For: Residential lawns
- Weather Resistance: Rainproof in 24 hours
- Not Suitable For: Floratam St. Augustinegrass
- Application Season: Spring through Fall
- Special Features: Dual-action weed killer and fertilizer
Pros:
- Feeds and thickens lawns while controlling weeds.
- Covers a large area per bag.
- Effective on a wide variety of common lawn weeds.
- Easy application with a standard spreader.
- Improves lawn appearance by crowding out future weeds.
Cons:
- Not safe for all grass types, especially Floratam.
Customer Feedback: Customers appreciate its effectiveness in weed control and lawn nourishment, though some report variability in results and caution about its use on certain grass types.
2. Compare-N-Save Weed Killer
Best For: Large areas like driveways and patios with extensive weed growth
With its glyphosate-based formula, the Compare-N-Save Weed Killer guarantees effective broad-spectrum control. It’s a great option for large areas like driveways, sidewalks, and fence lines, delivering coverage over 25,000 square feet. The herbicide works down to the roots, ensuring weeds are fully eradicated for a long-lasting, affordable solution.
This product is rainproof within 2 hours of application, which allows for flexible use around expected weather changes. However, due to its non-selective nature, it will kill any vegetation it comes into contact with, which necessitates careful application to avoid damage to desirable plants. The product is best used on sunny days when weeds are actively growing for maximum effectiveness.
While highly efficient, Compare-N-Save Weed Killer’s environmental impact should be considered, especially near water bodies or desired vegetation. Its active ingredient, glyphosate, is subject to scrutiny regarding environmental and health safety, so users should use protective gear during application and adhere strictly to the label instructions to minimize risks.
Specifications:
- Type: Liquid concentrate
- Coverage: 25,000 sq. ft.
- Active Ingredients: Glyphosate 41%
- Application Method: Spray
- Ideal For: Driveways, sidewalks, around fences
- Weather Resistance: Rainproof in 2 hours
- Not Suitable For: Lawns or desired vegetation areas
- Application Season: Warmer months
- Special Features: Makes up to 85 gallons of ready-to-use spray
Pros:
- Highly effective broad-spectrum weed control.
- Economical with extensive coverage per bottle.
- Simple mixing and application process.
- Quick rainproofing allows for flexible application.
- Effective for large area applications like driveways and walkways.
Cons:
- Not suitable for spot treating in lawns.
Customer Feedback: Users find it extremely effective for large area applications, though concerns about its environmental impact and non-selective nature are noted.
3. Green Gobbler Weed Killer
Best For: Eco-friendly weed control in residential settings
Green Gobbler Weed Killer is an environmentally friendly option designed to target weeds quickly and safely. Its main ingredient is a strong concentration of acetic acid, derived from corn, making it safe for pets, wildlife, and children. This product is ideal for use around homes where safety and environmental impact are priorities.
The weed killer is most effective when used in direct sunlight on areas like driveways, patios, and walkways. Its non-selective formula means it will kill any plant it contacts, so precision is key to its application. Results can be seen within hours of use, providing a quick solution to weed control without lingering harmful residues.
Despite its strengths, Green Gobbler Weed Killer is not rainproof and works best under dry conditions. Multiple applications may be necessary for tougher or shaded weeds. The product’s vinegar-based formula makes it a preferred choice for those seeking a non-toxic weed control method that aligns with organic gardening practices.
Specifications:
- Type: Liquid spray
- Coverage: Varies based on application
- Active Ingredient: 20% Acetic Acid
- Application Method: Spray bottle or pump sprayer
- Ideal For: Driveways, patios, garden beds
- Not Suitable For: Lawns or areas with desired vegetation
- Application Season: Apply during dry, sunny conditions
- Environmental Impact: Biodegradable, non-toxic
Pros:
- Eco-friendly and non-toxic, safe around pets and children.
- Fast-acting, visible results within hours.
- Easy to apply directly from the container.
- Does not leave harmful residues.
- Effective on a wide range of common weeds.
Cons:
- Not rainproof; effectiveness reduced if rained on soon after application.
Customer Feedback: Highly praised for its eco-friendliness and safety around pets and children, but its effectiveness varies with weather conditions and weed types.
4. Spectracide Weed Killer
Best For: Maintaining healthy, weed-free lawns
For tackling broadleaf weeds and nourishing your lawn, Spectracide offers a weed killer paired with a nitrogen-rich formula. The hose-end sprayer makes application easy, killing weeds like dandelion and clover while feeding your grass. With coverage up to 7,500 square feet, it’s perfect for larger lawns, providing an even and effective treatment.
The QuickFlip sprayer attached to the hose makes application easy, allowing for a quick switch from off to on. The product is not suitable for use near water bodies or edible gardens due to its chemical content. Users should ensure that the spray does not drift to non-target plants or areas where runoff could lead to contamination.
Spectracide Weed Killer requires careful handling due to its potential environmental impact. While it provides an efficient and user-friendly approach to lawn care, users should follow application guidelines carefully to ensure safety and effectiveness. The convenience of the hose-end sprayer and the dual-action formula make this product a popular choice for maintaining healthy, weed-free lawns.
Specifications:
- Type: Liquid spray
- Coverage: 7,500 sq. ft.
- Active Ingredient: Nitrogen, weed-killing agents
- Application Method: Hose-end sprayer
- Ideal For: Broadleaf weed control and lawn feeding
- Not Suitable For: Near water bodies or edible gardens
- Application Season: Apply during active weed growth
- Special Features: No mixing required; connects directly to hose
Pros:
- Dual-action formula feeds lawn and kills weeds.
- Easy application with hose-end sprayer.
- Effective on a variety of broadleaf weeds.
- Convenient and quick application across large lawns.
- Does not require pre-mixing or measuring.
Cons:
- Not suitable for all types of grass; check compatibility.
Customer Feedback: Regarded as easy to use and effective on a range of weeds, but some users are wary of potential environmental harm and report needing multiple applications.
5. RM43 Weed Killer
Best For: Areas requiring long-term vegetation suppression
RM43 offers a year-long defense against weeds with its robust formula, making it a reliable option for total vegetation control. With 43% glyphosate and imazapyr, it works against various weeds, grasses, and bushes. This product is especially useful for non-crop areas like gravel paths and fence lines.
With coverage of up to 17,297 square feet per gallon, RM43 is suited for large-scale applications. It is rainfast in two hours, allowing for use even with changing weather conditions. However, because of its potency and residual activity, it should not be used in areas intended for planting in the near future or near desirable vegetation.
The environmental and safety considerations for RM43 are significant. Users must wear protective gear and handle the product with care to avoid environmental contamination and personal harm. Despite these considerations, RM43 is valued for its long-lasting effectiveness and ability to reduce the frequency of applications needed for vegetation control.
Specifications:
- Type: Liquid concentrate
- Coverage: 17,297 sq. ft.
- Active Ingredients: Glyphosate 43%, Imazapyr
- Application Method: Sprayer
- Ideal For: Total vegetation control in non-crop areas
- Not Suitable For: Lawns or desirable plant areas
- Weather Resistance: Rainfast in two hours
- Application Season: Apply during dry conditions
- Special Features: Up to one year of vegetation control
Pros:
- Provides long-lasting vegetation control with one application.
- Highly effective against a wide range of vegetation.
- Suitable for large areas like parking lots and fence lines.
- Rainfast in just two hours, allowing for less restrictive timing.
- Concentrated formula offers extensive coverage and long-lasting results.
Cons:
- Not suitable for areas where future vegetation is desired.
Customer Feedback: Valued for its long-lasting weed control in non-crop areas, but its powerful formula requires careful handling and is not suitable where future vegetation is desired.
6. Ortho Weed Killer
Best For: Lawns with tough broadleaf weeds like clover and chickweed
Designed to combat common lawn invaders such as chickweed, clover, and oxalis, this weed killer from Ortho provides reliable results without harming your grass. Safe on Kentucky Bluegrass, Ryegrass, and Fescue, it becomes rainproof six hours after application. The product’s targeted action ensures that your lawn stays healthy while effectively managing unwanted weeds.
The product requires careful mixing and should be applied using a tank sprayer for best results. It is not suitable for use near edible gardens or non-lawn areas due to its targeted weed control capabilities. Ortho Weed Killer is particularly effective when weeds are actively growing, as it absorbs into the leaves and moves to the roots, killing weeds from the bottom up.
While effective and convenient for lawn use, Ortho Weed Killer should be used with consideration for environmental safety. Proper application techniques can minimize the risk of runoff and damage to non-target plants, making it a responsible choice for maintaining a beautiful lawn without broad-spectrum environmental impact.
Specifications:
- Type: Liquid concentrate
- Coverage: 3,200 sq. ft.
- Active Ingredients: Triclopyr, Triethylamine salt
- Application Method: Tank sprayer
- Ideal For: Residential lawns
- Not Suitable For: Non-lawn areas, edible gardens
- Weather Resistance: Rainproof in 6 hours
- Application Season: Apply during active weed growth
- Target Weeds: Chickweed, clover, oxalis, and more
Pros:
- Effectively targets tough broadleaf weeds without harming the lawn.
- Selective action allows safe use on many types of grass.
- Concentrated formula provides good coverage for medium-sized lawns.
- Becomes rainproof relatively quickly after application.
- Easy to mix and apply with standard garden sprayers.
Cons:
- Not suitable for use around edible plants.
Customer Feedback: Users like its selective action on broadleaf weeds without harming lawns, though some have issues with mixing accuracy and environmental concerns.
7. Roundup Weed Killer
Best For: Northern lawns needing precise weed control
Offering a long-reach wand for effortless application, this weed killer by Roundup can handle more than 250 types of weeds, including crabgrass and dandelion, without requiring you to bend or stoop. It’s perfect for northern grasses and starts working right away, becoming rainproof in just three hours.
The ready-to-use formula eliminates the need for mixing or measuring, providing convenience and reducing the chance of incorrect application. However, its chemical composition raises environmental and health concerns, necessitating careful handling and application. The precision wand helps limit application to targeted weeds, reducing the potential for accidental spray on desirable plants or areas.
Roundup Weed Killer’s reputation for effectiveness is tempered by ongoing scrutiny regarding its safety and environmental impact. Users looking for a reliable, easy-to-use weed control solution should consider the specific conditions and requirements of their lawns to determine if Roundup is the best choice for their needs.
Specifications:
- Type: Ready-to-use spray
- Coverage: Up to 1,330 sq. ft.
- Active Ingredients: MCPA, Quinclorac, Dicamba, Sulfentrazone
- Application Method: Extended wand sprayer
- Ideal For: Northern grass types
- Not Suitable For: Southern grass types
- Weather Resistance: Rainproof in 3 hours
- Application Season: Apply during growing season
- Special Features: Extended wand for targeted application
Pros:
- Precision wand allows for targeted application.
- Controls a wide variety of tough lawn weeds.
- Rainproof in 3 hours for application flexibility.
- Ready-to-use formula simplifies application.
- Effective on northern lawn types without damage.
Cons:
- Some users report resistance in certain weed types.
Customer Feedback: Appreciated for its precise application and quick action, but its environmental and health safety is a point of concern for many users.
8. Natural Armor Weed Killer
Best For: Driveways and garden beds in eco-conscious settings
Using a vinegar-based approach, Natural Armor presents a non-toxic option for weed control that’s safe for pets, kids, and wildlife. This product is perfect for home use and efficiently kills weeds without harmful chemicals. However, being non-selective, it requires careful application as it targets all vegetation.
This product is particularly effective in sunny conditions and on hard surfaces like driveways and patios. While it provides fast results, it may require reapplication for complete control, especially in shaded or densely weeded areas. Natural Armor is a preferred choice for those looking for an eco-friendly alternative to traditional herbicides.
Despite its many benefits, Natural Armor is not rainproof and works best under specific conditions. Users should plan applications around dry weather periods to maximize effectiveness. Its safety and environmental benefits make it a popular choice for environmentally conscious gardeners.
Specifications:
- Type: Liquid spray
- Coverage: Varies based on application
- Active Ingredient: Acetic Acid
- Application Method: Spray bottle or pump sprayer
- Ideal For: Driveways, patios, garden beds
- Not Suitable For: Lawns or areas with desired vegetation
- Application Season: Apply during dry, sunny conditions
- Environmental Impact: Biodegradable, non-toxic
Pros:
- Safe for use around pets and children.
- Fast-acting, with visible results within hours.
- Non-toxic and biodegradable, making it environmentally friendly.
- Easy to apply directly from the container.
- Effective on a wide range of common weeds.
Cons:
- Strong vinegar smell during application.
Customer Feedback: Lauded for being pet-safe and environmentally friendly, yet effectiveness can be inconsistent, especially in less than ideal weather conditions.
9. Sedgehammer Weed Killer
Best For: Lawns infested with nutsedge
Known for its effectiveness against nutsedge, Sedgehammer uses the active ingredient Halosulfuron-methyl to selectively eliminate this invasive weed. Its unique formulation makes it a go-to option for homeowners wanting to protect their turfgrass while dealing with stubborn weed issues.
The product includes a surfactant to increase its efficacy, which means there is no need for additional additives. It is effective with minimal impact on the lawn, typically requiring several weeks to fully eradicate the nutsedge. Patience is required as the product works slowly to disrupt the growth at the roots, ensuring long-term control.
While Sedgehammer is highly effective against nutsedge, it is not suitable for treating other types of weeds. Users must apply it carefully to target the affected areas without affecting nearby plants. Its specialized action and safety profile make it a valuable tool for maintaining lawn health and appearance.
Specifications:
- Type: Water-soluble granule
- Coverage: 1,000 sq. ft. per packet
- Active Ingredient: Halosulfuron-methyl 5%
- Application Method: Tank sprayer
- Ideal For: Residential and commercial lawns
- Not Suitable For: Immediate results seekers
- Weather Resistance: Water after 4 hours for best results
- Application Season: During active weed growth
- Special Features: Includes surfactant for increased effectiveness
Pros:
- Highly effective specifically against nutsedge.
- Safe for a wide variety of turfgrass.
- Small amount of product needed per application.
- Surfactant included, no need for additional additives.
- Gradual, effective weed control without harming the lawn.
Cons:
- Not effective against non-sedge weeds.
Customer Feedback: Prized for its targeted control of nutsedge with minimal lawn impact, but requires patience for visible results and repeated applications in heavy infestations.
Factors To Consider While Buying Best Weed Killers For Lawns
Selecting an effective weed killer for your lawn involves several key considerations that can significantly impact both the health of your lawn and the surrounding environment. This guide will help you understand what to look for when choosing a weed killer, ensuring you make the best decision for your specific needs.
Consider The Type Of Weed Killer
The type of weed killer you select directly affects what kinds of plants it will target and spare. Here’s what you should consider:
- Selective Weed Killers: Ideal for lawns overrun by specific types of weeds like dandelions or clovers. These herbicides will target and eliminate these weeds without harming your grass, preserving the lush, green appearance of your lawn.
- Non-Selective Weed Killers: Use these if you need to clear out all vegetation from an area, such as creating boundaries around walkways or setting up new garden beds. These powerful formulations will kill nearly all plants they contact, so they must be used with precision to avoid damaging desirable plants.
Active Ingredients To Look For
The chemicals used in your weed killer determine its effectiveness and environmental impact. Consider these popular options:
- 2,4-D: This is a good choice if you’re dealing with common broadleaf weeds. It’s selective, so it won’t harm your grass but will eliminate weeds that compete for vital nutrients.
- Glyphosate: Choose this for tough, pervasive weeds. It’s a non-selective herbicide, perfect for areas where you want complete vegetation removal. Remember, it will kill everything it touches, so apply it carefully.
- Dicamba: Another selective option that’s particularly effective against a wider variety of broadleaf weeds. It’s often mixed with other herbicides to broaden its range of effectiveness.
Understanding Formulations
The form in which you apply a weed killer can affect its ease of use and effectiveness in different settings.
- Liquid Concentrates: Best for large areas as they allow for precise dilution and application, ensuring that the entire area is treated uniformly.
- Ready-To-Use Sprays: Opt for these if you need a quick and easy solution for spot treatment or small areas. They’re convenient but less economical for larger spaces.
- Granular: These are excellent for preventative measures, especially in large areas where you expect weed growth but haven’t seen it yet.
Application Methods: Spray vs. Spread
How you apply the weed killer can influence its effectiveness and the uniformity of the application.
- Spraying: Provides thorough coverage and allows for adjustments based on specific needs, such as droplet size or application rate.
- Spreading: Ideal for granular pre-emergent herbicides, ensuring even distribution and effective prevention of weed germination.
Assess The Coverage Area
Knowing the coverage area of the weed killer ensures you purchase enough to treat your entire lawn but not so much that it leads to waste and potential environmental damage. Each product usually specifies the amount needed per square foot, allowing for precise application.
Check Rainproof Qualities
In unpredictable climates, a weed killer’s resistance to washing away in rain soon after application is crucial. Quick-setting formulas can resist rainfall within 30 minutes, offering peace of mind and continued effectiveness even during sudden weather changes.
Additional Features Worth Considering
Why It Matters: Features such as pet-friendliness or added fertilizers can enhance the usability and functionality of a weed killer, making it a more versatile and appealing choice for specific lawn care scenarios.
FAQs:
Generally, no. Most weed killers are designed to kill broadleaf plants, which can include vegetables. There are, however, some selective herbicides that can be used safely around certain edible plants.
Yes, they can be. Always read the label carefully and follow safety precautions. Keep children and pets away from treated areas until the product has dried completely. Consider using pet-safe or organic alternatives.
Yes. Organic options include vinegar, boiling water, and certain natural herbicides. However, they may require more frequent applications and may not be as effective as chemical herbicides.
Follow product instructions. Generally, pre-emergent herbicides are applied in the spring before weeds germinate, while post-emergent herbicides are used when weeds are actively growing.
No. Weed killers can harm newly seeded grass. Wait until the grass is established before applying any herbicides.
Some weed killers can harm beneficial insects and wildlife. Choose products that are less harmful to the environment, or consider organic alternatives.
Yes, but it’s important to follow regulations. Golf courses often have specific guidelines for herbicide use to protect the environment and ensure the safety of players and workers.
Be cautious. Weed killer can run off sloping lawns, potentially harming nearby plants or waterways. Use caution and follow label instructions.
Glyphosate is a common herbicide. While it is generally considered safe when used according to label instructions, there have been concerns about its potential environmental and health risks. Some countries have restricted its use.
Conclusion
From eco-friendly options to heavy-duty killers, this roundup has highlighted how diverse weed control solutions can be. Depending on your lawn’s condition and your personal preferences, there’s a product out there that can effectively meet your weed control needs without compromising your lawn’s health.
Top 3 Recommendations
- For Eco-Conscious Users: Consider Green Gobbler Weed Killer for a safe, effective, and environmentally friendly option, especially suitable for households with pets and children.
- For Tough Weed Infestations: RM43 Weed Killer is highly recommended if you’re dealing with stubborn, widespread weed issues in non-crop areas and need long-lasting control.
- For Specific Weed Issues: If nutsedge is your main concern, Sedgehammer Weed Killer offers targeted action that minimizes harm to your lawn while effectively controlling this difficult weed.
