10 Best Lawn Weed Killers 2025 in the United States

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.

Ortho WeedClear Weed Killer for Lawns is a ready-to-use systemic herbicide designed to tackle a wide variety of common lawn weeds such as dandelion and clover without harming your grass, provided instructions are followed. The trigger sprayer makes it easy to apply, and users can expect visible results within hours. Its rainproof feature ensures effectiveness shortly after application, and it is safe for people and pets once the spray dries.

This weed killer is most suitable for use on specific types of turfgrass like Kentucky bluegrass, ryegrass, and Bermudagrass, among others. However, it is not intended for all grass types, such as St. Augustinegrass or Bahiagrass, and should not be used in areas with desirable clovers or ornamental plants. Additionally, while its ability to target over 250 weed types is a significant advantage, care must be taken to avoid unintended damage to non-target plants and grasses.

The 1-gallon volume offers substantial coverage, making it a practical choice for homeowners looking to manage weeds in medium to large lawns. As it requires careful adherence to usage directions, those new to lawn care may need to familiarize themselves with proper application techniques to achieve the best results.

Ortho WeedClear Weed Killer for Lawns Ready-To-Spray is a user-friendly solution that effectively targets a wide range of common lawn weeds, such as dandelions, clover, and poison ivy. One of its standout features is its ability to treat up to 16,000 square feet without harming the grass, provided it is used as directed. This makes it an ideal choice for homeowners seeking to maintain a healthy lawn while eliminating pesky weeds.

The product claims to offer visible results within hours and becomes rainproof just one hour after application, which is convenient for unpredictable weather conditions. Additionally, the safety feature, allowing people and pets to enter the treated area once it is dry, adds to its practicality and appeal for families and pet owners. Its application is straightforward; simply connect it to a garden hose, making it accessible for those who prefer a hassle-free approach to lawn care.

On the downside, while it contains three proven active ingredients, some users might be concerned about the environmental impact of herbicides. Moreover, the product's effectiveness can vary depending on the specific type of weeds and lawn conditions. In summary, Ortho WeedClear Weed Killer for Lawns Ready-To-Spray is a robust option for those looking to quickly and efficiently eliminate weeds without damaging their lawn.