10 Best Ortho Crabgrass Killers 2026 in the United States

Ortho WeedClear Weed Killer for Lawns Concentrate is a robust solution for tackling various common weeds while keeping your lawn intact. This product is particularly effective against dandelions, clover, poison ivy, chickweed, and dollarweed. It is designed for use during the spring or fall when weeds are small and actively growing, with temperatures below 90°F.

One of its standout features is the visible results within hours and the fact that it's rainproof one hour after drying. This means you don’t have to worry about rain washing it away soon after application. Another convenience is that it’s safe for both people and pets to enter the treated area once it’s dry, enhancing its user-friendliness.

The product is a liquid concentrate, so it does require proper mixing and cannot be applied directly, which might be a downside for those looking for a ready-to-use solution. With a coverage area of up to 64,000 square feet, it’s suitable for larger lawns, making it cost-effective for extensive use. It requires careful adherence to the application instructions to avoid harming the lawn, and the concentrate form necessitates additional equipment for proper use.

Scotts Turf Builder Triple Action1 is a versatile solution designed to improve your lawn by killing weeds, preventing crabgrass, and fertilizing grass. It covers an area of 4,000 square feet per bag and is effective against a variety of common weeds, such as dandelions and clover. This product is particularly beneficial for lawns composed of different grass types like Bahiagrass and Kentucky Bluegrass, making it suitable for diverse lawn care needs.

It should be applied in spring when weeds are actively growing and requires watering 24 hours after application for best results. While this product prevents crabgrass for up to 4 months, it does not eliminate existing crabgrass, which may be a drawback for those already dealing with this issue. Additionally, it is not available in all regions, including Alaska and Hawaii, which limits its accessibility.

The granular formulation is user-friendly when used with a Scotts spreader, but users should follow safety guidelines to minimize environmental impact. This product is a good fit for homeowners looking for a comprehensive lawn care solution, though it may require additional treatments for existing crabgrass.

The Ortho WeedClear Lawn Weed Killer Ready-To-Spray is a convenient liquid spray designed to eliminate common lawn weeds like crabgrass, dandelions, clover, chickweed, and foxtail. It works quickly, killing weeds down to the root with just one treatment, which saves time compared to products needing multiple applications. This product is formulated to selectively kill weeds without damaging several popular lawn grasses such as Bermudagrass, Fescues, Kentucky Bluegrass, and Ryegrass—making it a good fit for most common lawns.

The ready-to-use spray easily attaches to a garden hose for simple, even coverage up to 5,000 square feet, which covers a medium-sized yard effectively. Application should be done when weeds are young and actively growing for best results. It is not available in some states like Florida and Hawaii, which might limit access depending on location. While it is generally safe when used as directed, users should still follow instructions carefully to protect desirable grass and avoid runoff.

With a strong customer rating of 4.1 out of 5 and the backing of a well-known brand, this product offers a practical solution for homeowners needing a straightforward crabgrass and broadleaf weed killer, especially if they want an easy spray-on option without mixing chemicals.