10 Best Herbicides 2025 in the United States

Roundup Weed & Grass Killer₄ Concentrate is a versatile herbicide that effectively targets a broad spectrum of weeds including dandelion, crabgrass, poison ivy, and clover. Its strong mode of action allows it to penetrate to the roots, ensuring that the weeds are thoroughly killed. The product is rainproof within 30 minutes, which means you don’t have to worry about its effectiveness being washed away by sudden rain.

Visible results can be seen within hours, making it a fast-acting solution for your yard needs. With a residual activity that allows planting 1 to 30 days after application, it offers flexibility for continued yard maintenance and planting. Suitable for use around flower beds, trees, fences, driveways, walkways, and even for lawn replacement or garden plot preparation, this product is quite versatile.

It covers up to 300 square feet per gallon when mixed according to directions, making it an efficient option for larger areas. However, it is important to use it carefully to avoid damaging desired plants and to follow the booklet instructions precisely for optimal results. While it has a strong environmental impact due to the active ingredients like Triclopyr and Diquat Dibromide, caution is necessary to minimize any adverse effects.

Scotts Halts Crabgrass & Grassy Weed Preventer is designed to stop the germination of a wide range of lawn weeds. As a pre-emergent herbicide, it is effective when applied early in the spring or fall, working preemptively to tackle weeds like crabgrass, foxtail, spurge, barnyardgrass, moss, and others. The granule form makes it easy to spread over large areas, covering up to 10,000 sq. ft. per 20.12 lb. bag, which is suitable for medium to large lawns.

Its application is straightforward; apply to a dry lawn, and it remains effective even if followed by rain or snow, simplifying usage for homeowners who might not have perfect conditions for application. However, it’s not suitable for all grass types, specifically Dichondra and Bentgrass, which limits its use for some users. Additionally, while it prevents weed germination, it does not address already existing weeds, requiring a different product for post-emergence weed control.

This product is environmentally considerate as it is designed to prevent weeds without needing frequent applications and is made in the USA, which might be a plus for those who prefer locally made products. Scotts Halts Crabgrass & Grassy Weed Preventer is a solid choice for those looking to prevent a broad spectrum of weeds in their lawns with minimal environmental impact.

The Ortho GroundClear Weed and Grass Killer is a versatile herbicide that targets a wide range of weeds including dandelions, chickweed, and crabgrass. It uses ammonium nonanoate as its active ingredient, which provides fast-acting results within 15 minutes and becomes rainproof after 2 hours of drying. This is particularly useful for maintaining patios, driveways, and landscape beds, though it is not suitable for use on lawns or other desired grasses.

One notable feature is the Comfort Wand applicator, which helps with precise application, reducing the chances of affecting nearby plants you want to keep. The product covers up to 5,120 square feet with its 1-gallon container, making it quite efficient for larger areas. However, it’s important to note that this herbicide is non-selective, meaning it will kill any plant it comes into contact with, so careful application is necessary.

Additionally, while it’s OMRI listed, indicating it's safe for organic gardening, users concerned with environmental impact should be mindful of its potential effects. The key drawbacks include its non-selective nature and the need for careful application to avoid damaging desirable plants. This product is best suited for individuals looking to tackle tough weeds and grasses in non-lawn areas quickly and effectively.