10 Best Weed Killers For Lawns 2025 in the United States

Scotts Liquid Turf Builder with Plus 2 Weed Control is a liquid weed killer and fertilizer that combines weed control with lawn nourishment. It is designed to kill various broadleaf weeds, including dandelions, clover, and poison ivy, while providing a nitrogen boost to the lawn. This product is easy to apply with a ready-to-spray formula, targeting active weeds effectively.

It is suitable for several types of grass, such as Bluegrass, Fescue, and Bermudagrass, making it versatile for different lawn types. A 32 fl. oz. container covers up to 6,000 sq. ft. for warm season lawns and 4,000 sq. ft. for cool season lawns, which is fairly efficient coverage. However, users should be mindful of the timing of application, as it is most effective when weeds are actively growing.

Additionally, while the product combines weed control and fertilization, it may not be suitable for those looking for an organic or eco-friendly option, as it contains chemical ingredients. Its dual functionality as both a weed killer and fertilizer can be a strong selling point for those looking to save time and effort in lawn maintenance, but it may require careful handling to avoid potential environmental impact or safety concerns.

The Scotts Turf Builder Bonus S Southern Weed & FeedF2 is a combination weed killer and lawn fertilizer designed specifically for Florida lawns. This product excels in targeting a variety of common weeds like dollarweed, clover, dandelion, and chickweed, making it effective for maintaining a weed-free lawn. Additionally, it helps thicken grass, which can prevent future weed growth and runoff issues.

It is suitable for use on specific grass types such as St. Augustinegrass, Centipedegrass, Zoysiagrass, and Carpetgrass, ensuring targeted and effective treatment for these lawns. One bag covers up to 5,000 sq. ft., making it a cost-effective solution for larger lawns. The product needs to be watered in immediately after application, which may require some planning. It is also restricted to Florida use only, limiting its availability.

Despite these points, it remains a strong option for those in Florida looking to manage weeds and fertilize their lawns simultaneously.

Scotts Halts Crabgrass & Grassy Weed Preventer is designed for homeowners who want to tackle a range of common lawn weeds such as crabgrass, foxtail, and chickweed. As a pre-emergent weed killer, it effectively prevents the germination of listed weeds when applied in early spring or fall. The granular form is easy to spread, covering up to 10,000 sq. ft., making it suitable for larger lawns. One key advantage is its resilience to weather conditions post-application, meaning rain or snow won’t diminish its effectiveness.

This product works well with all grass types except Dichondra and Bentgrass, providing broad utility. However, it does not treat existing weeds, so it’s crucial to use it before weeds appear. Additionally, it’s important to consider that pre-emergent weed killers can have residual effects on the soil, possibly impacting future planting.

While it is effective in preventing weed growth, the environmental impact of chemical weed killers should be carefully considered by those mindful of ecological effects. The product’s weight of 20.12 pounds might also be cumbersome to handle for some users. This weed preventer is well-suited for those looking to manage a wide variety of lawn weeds as part of their seasonal lawn maintenance.