10 Best Crabgrass Killers 2025 in the United States

The Ortho WeedClear Lawn Weed Killer Ready-To-Spray is a versatile product designed to kill a variety of common lawn weeds, including crabgrass, dandelion, chickweed, clover, and foxtail. This product is effective with just one application, making it a fast-acting solution for lawn care. One of its significant strengths is its selective action – it targets weeds without harming your lawn when used as directed, and it is compatible with popular lawn grasses like Bermudagrass, Buffalograss, Fescues, Kentucky Bluegrass, Ryegrass, and Zoysiagrass.

The application method is user-friendly; simply connect the sprayer to a garden hose and spray evenly over the lawn for up to 5,000 square feet of coverage. This makes it suitable for average-sized lawns and easy to use for homeowners who might not be familiar with lawn care products. Additionally, the ready-to-spray format saves time and effort compared to mixing concentrated solutions.

On the downside, the product is not available in Florida, Guam, Hawaii, and Louisiana, which could be a limitation for potential users in these regions. Also, as with any chemical product, there may be environmental concerns, although the product is designed to be used safely on lawns. The Ortho WeedClear is a practical option for those looking to manage weeds efficiently without damaging their lawns, but availability and environmental impact are factors to consider.

The Ortho GroundClear Weed and Grass Killer is a versatile product designed to tackle various types of weeds and grasses, including dandelions, chickweed, moss, and crabgrass. One of its key strengths is its fast-acting formula, which shows visible results in just 15 minutes and becomes rainproof within 2 hours. This makes it a convenient choice for quick weed control in areas like patios, walkways, and driveways, as well as landscape beds. However, it's important to note that this product is not suitable for use on lawns or desirable grasses, which could limit its application if you need to protect your lawn while killing weeds.

Ease of use is another positive aspect, particularly if you have the Comfort Wand from the original container, allowing for precise targeting of weeds. The 1-gallon refill is substantial, covering a significant area and making it economical for extended use. However, always ensure that weeds are small, actively growing, and not wet to achieve the best results.

In terms of environmental impact, the product is OMRI (Organic Materials Review Institute) listed, suggesting it meets organic standards, which can be a reassuring factor if you're concerned about using chemicals in your garden. A drawback to consider is that the product's effectiveness hinges on proper application conditions, such as dry weather and active weed growth, which may require you to plan your usage accordingly. Additionally, the product's restriction to non-lawn areas means it might not be the best choice for those looking to address crabgrass specifically in their lawns. If you need a powerful and fast-acting solution for controlling weeds and grasses in specific areas around your home and are mindful of application guidelines, this product could be a strong contender.

The Ortho GroundClear Weed and Grass Killer2 Concentrate is a liquid herbicide designed to kill a variety of unwanted plants, including crabgrass, dandelions, moss, and chickweed. Its active ingredient, ammonium nonanoate, works by contact, meaning it starts killing weeds quickly, typically within 15 minutes of application. This fast action is helpful for those who want to see results soon. The product comes as a concentrate, which means you dilute it before use, allowing you to cover about 600 square feet per 32-ounce bottle. It’s best applied to dry, small, actively growing weeds and is rainproof once dry for about 2 hours.

This product is not safe for use on lawns or desirable grasses, so it’s ideal if you want to clear weeds from patios, driveways, walkways, or garden beds rather than in your grass areas. Because it’s OMRI listed, it has been reviewed for organic use, which may appeal to users concerned about environmental impact. In terms of ease of use, diluting a concentrate and spraying carefully requires some attention but is manageable for most homeowners.

If you’re looking specifically for a crabgrass killer to use directly on your lawn, this might not be the best choice since it can damage grass you want to keep. However, if you need a powerful, fast-acting weed killer for hard surfaces and non-lawn areas, this product works well and has a strong reputation among many users.