10 Best Weed And Grass Killers 2025 in the United States

Scotts Liquid Turf Builder with Plus 2 Weed Control is a multipurpose product designed to both eliminate weeds and fertilize your lawn. The liquid form makes it easy to apply: just attach it to your garden hose and spray. Its active ingredient is nitrogen, which helps in providing a quick boost to your lawn while controlling broadleaf weeds such as dandelion, clover, and poison ivy.

This makes it suitable for various types of grasses including Bluegrass, Fescue, and Ryegrass, among others. One 32 fl. oz. container covers up to 6,000 sq. ft. for warm-season lawns and 4,000 sq. ft. for cool-season lawns, so it offers good coverage. On the downside, its effectiveness is contingent on the weeds being actively growing at the time of application. This means it might not be as effective in controlling dormant weeds.

Additionally, while it is convenient, the liquid spray may pose some safety concerns if not applied properly, and care should be taken to avoid run-off into environmentally sensitive areas. This product is best suited for homeowners looking to improve their lawn’s appearance quickly by tackling common broadleaf weeds while also fertilizing their grass.

The Roundup Dual Action 365 Weed & Grass Killer Plus 12 Month Preventer with Pump 'N Go 2 Sprayer is a robust solution for those looking to tackle tough weeds and grasses. As a liquid weed killer, it is designed to both eliminate existing weeds and prevent new growth for up to 12 months, making it ideal for areas like driveways, sidewalks, patios, and other non-lawn spaces. The sprayer comes with an extendable wand that allows for up to 10 minutes of continuous spray, making application straightforward and reducing the need to bend over, which can be a significant benefit for users with mobility issues.

It is reported to be rainproof in just 30 minutes and shows visible results within hours, which is a great advantage for those seeking quick effects. However, one important consideration is the safety and environmental impact of the product, as weed killers can sometimes pose risks to non-target plants and animals. Users should follow the guidelines carefully to minimize any potential negative impacts. With a coverage area of 400 square feet per 1.33-gallon container, it offers decent reach for most household needs.

The product has received positive feedback, with a 4.5 out of 5-star rating from over 9,500 reviews, indicating general satisfaction among users. While it ranks highly among weed killers, the weight of the container (12.54 pounds) may be somewhat cumbersome for some users. Anyone seeking a long-term, effective weed and grass control solution will likely find this product meets their needs well.

The BioAdvanced 5 In 1 Weed and Feed Lawn Fertilizer is a granular product designed to target a wide array of tough weeds, including dandelions, clovers, and crabgrass. Its primary strength lies in its ability to kill over 200 types of weeds and prevent new ones from emerging, thanks to its 6-month control barrier.

Additionally, it offers a dual benefit of greening your lawn for up to three months, making it a comprehensive lawn care solution. The product covers a substantial area of 10,000 square feet, which is convenient for larger lawns. However, it is not available for sale in NY, HI, and FL, which might be a limitation for some users.

The granules are easy to apply, but it's essential to follow the directions carefully to avoid potential harm to your lawn. This product is best suited for those looking for an all-in-one solution to both fertilize and control a wide range of weeds in their lawn.