We Use CookiesWe use cookies to enhance the security, performance, functionality and for analytical and promotional activities. By continuing to browse this site you are agreeing to our privacy policy

10 Best Lawn Weed Killers 2025 in the United States

How do we rank products for you?

Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

headphones-stars

Our Top Picks

#1

Winner

Scotts Turf Builder Weed & Feed3, Weed Killer Plus Lawn Fertilizer, Controls Dandelion and Clover, 5,000 sq. ft., 14.29 lbs.

The Scotts Turf Builder Weed & Feed3 is a versatile lawn care product that combines a weed killer with a fertilizer. This dual-purpose formula is designed to kill over 50 types of common lawn weeds, including dandelions and clover, while also nourishing your lawn to help it grow thicker and more robust. This is beneficial as a thicker lawn can naturally crowd out future weeds, reducing the need for repeated applications.

The product is formulated for use on various grass types, including Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass, making it versatile for different lawns. Covering up to 5,000 square feet, a single 14.29 lb. bag offers substantial area coverage, which is ideal for medium to large yards. The active ingredients, 2,4-D and Mecoprop, are common in many weed control products and are effective at targeting broadleaf weeds.

Users should be cautious with the application, ensuring the lawn is wet and the temperatures are between 60°F and 90°F for optimal results. This product is not available in Florida, which restricts its accessibility for some users. Additionally, its granule form means it requires proper application techniques to avoid overuse or uneven distribution. Environmental and safety impacts should also be considered, as chemical weed killers can affect surrounding plants and wildlife if not used as directed. To summarize, the Scotts Turf Builder Weed & Feed3 is a strong option for those looking to simultaneously manage weeds and improve lawn health, though it does come with some application and environmental considerations.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Application Method
Easy application with clear instructions; no special equipment or expertise required.
#2

Scotts Halts Crabgrass & Grassy Weed Preventer, Pre-Emergent Weed Killer for Lawns, 5,000 sq. ft., 10.06 lbs. (2-Pack)

Scotts Halts Crabgrass & Grassy Weed Preventer is a pre-emergent weed killer designed to prevent the germination of various grassy weeds and lawn weeds over an area of 5,000 square feet. One of its main strengths is its effectiveness in preventing crabgrass, foxtail, spurge, barnyardgrass, and other listed weeds throughout the season when applied either in early spring or fall. This product is suitable for most grass types, though it should not be used on Dichondra or Bentgrass lawns.

Additionally, its granular form makes it easy to apply, and it remains effective even after exposure to rain, snow, or freezing weather post-application. The product comes in a two-pack, totaling 10.06 pounds, ensuring ample coverage for larger lawns. It is important to note that this product is a preventative measure (pre-emergent), meaning it does not kill existing weeds but rather prevents new ones from germinating.

Safety and environmental impact are always concerns with chemical products, so users should follow application instructions carefully to minimize any potential negative effects. Those looking to maintain a weed-free lawn throughout the season without dealing with existing weed problems will find this product beneficial.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Pre-emergent vs. Post-emergent
Applying this product in both fall and spring helps keep crabgrass under control.
Active Ingredients
The absence of fertilizer in this product is a big plus, allowing for weed prevention without promoting early spring grass growth.
#3

Scotts Turf Builder Triple ActionI, Weed Killer and Preventer Plus Lawn Fertilizer, 4,000 sq. ft., 11.31 lbs.

Scotts Turf Builder Triple Action is a versatile lawn care product designed for homeowners looking to improve their grass while managing weeds. It serves three purposes: killing existing weeds, preventing crabgrass, and fertilizing the lawn. This makes it a convenient option for those who want an all-in-one solution for lawn maintenance.

The coverage area of 4,000 sq. ft. is sufficient for medium-sized lawns. Users need to be aware that while it prevents crabgrass for up to 4 months, it will not eliminate existing crabgrass. The product is formulated for various grass types, including popular ones like Kentucky Bluegrass and Bermudagrass. It uses active ingredients Pendimethalin and Dicamba, which are effective but require careful handling to avoid harming desired plants.

The application method is straightforward: apply to a wet lawn with a spreader and water it in after 24 hours, ideally in early spring. One notable strength is its ability to control a wide range of common lawn weeds such as dandelions and clover. However, its effectiveness can be limited if not used according to instructions, and there might be environmental concerns related to its chemical ingredients. This product is best suited for homeowners who want a simple, combined approach to fertilizing their lawn and managing weeds, especially in the early spring season.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Application Method
It’s easy to apply—just sprinkle it and let it work its magic.
Type of Weed Killer
Covers 4,000 sq. ft. of your lawn, making your neighbors wonder what kind of wizardry you’re using.

Buying Guide for the Best Lawn Weed Killers

Choosing the right lawn weed killer can make a significant difference in maintaining a healthy and beautiful lawn. The key is to understand the different types of weed killers available and how they work, so you can select the one that best fits your specific needs. Here are some important specifications to consider when choosing a lawn weed killer.
Type of Weed KillerWeed killers come in two main types: selective and non-selective. Selective weed killers target specific types of weeds without harming the surrounding grass, making them ideal for lawns. Non-selective weed killers, on the other hand, kill all vegetation they come into contact with, which is useful for clearing areas completely. If you want to maintain your lawn while getting rid of weeds, a selective weed killer is the best choice.
Systemic vs. ContactSystemic weed killers are absorbed by the plant and travel through its system to kill it from the inside out, which is effective for perennial weeds with deep roots. Contact weed killers, however, only kill the parts of the plant they touch, making them suitable for annual weeds or surface-level issues. If you have deep-rooted weeds, a systemic weed killer will be more effective, while contact weed killers are good for quick, surface-level weed control.
Pre-emergent vs. Post-emergentPre-emergent weed killers prevent weed seeds from germinating and are best used early in the season before weeds appear. Post-emergent weed killers are used to kill existing weeds and are effective once weeds have already sprouted. If you are looking to prevent weeds from growing, choose a pre-emergent weed killer. If you need to tackle weeds that are already present, a post-emergent option is the way to go.
Application MethodWeed killers can be applied in various ways, including sprays, granules, and concentrates. Sprays are easy to apply and are good for spot treatments. Granules are spread over a larger area and are useful for treating the entire lawn. Concentrates need to be mixed with water and can be customized for different levels of weed control. Consider how you prefer to apply the product and the size of the area you need to treat when choosing the application method.
Active IngredientsThe active ingredients in weed killers determine their effectiveness and the types of weeds they can control. Common active ingredients include glyphosate, 2,4-D, and dicamba. Each ingredient targets different types of weeds, so it's important to identify the weeds in your lawn and choose a product with the appropriate active ingredient. Research the weeds you are dealing with and select a weed killer that lists those weeds on its label.
Safety and Environmental ImpactConsider the safety of the weed killer for pets, children, and the environment. Some products are designed to be safer and have a lower environmental impact. Look for weed killers that are labeled as pet-safe or environmentally friendly if these factors are important to you. Always follow the manufacturer's instructions for safe use and disposal.

FAQ