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 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.

The Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer with Sure Shot Wand is a versatile product designed to both eliminate existing weeds and prevent new ones for up to four months. This dual action is effective for areas like driveways, sidewalks, patios, and around well-established plants. The Sure Shot Wand provides precision in application, making it user-friendly and reducing the risk of harming nearby plants.

It works quickly, showing visible results in as fast as six hours and is rainproof within 30 minutes, adding to its convenience. However, its compatibility with lawns might be limited as it is primarily intended for hardscapes and landscaped areas. Additionally, it's important to consider the environmental impact, as herbicides can affect the surrounding ecosystem.

Users looking for a fast-acting and long-lasting weed solution will find this product valuable, but they should use it cautiously around desired plants and in alignment with local environmental guidelines.