10 Best Organic Crabgrass Killers 2025 in the United States

The Scotts Turf Builder Triple Action1 is a versatile lawn care product designed to handle multiple tasks with a single application. It not only kills various kinds of broadleaf weeds like dandelion, clover, and chickweed, but also prevents crabgrass for up to four months. Additionally, it acts as a fertilizer to promote a lush, green lawn.

This three-in-one formula is effective for use on a variety of grasses including Kentucky Bluegrass, Bermuda, and Tall Fescue, making it a flexible option for different lawn types. The product comes in granular form and is applied using a spreader on a wet lawn, with a coverage of up to 12,000 square feet per bag, adequate for larger lawn areas. It's recommended to apply it in the spring when dandelions are actively growing, and water it in after 24 hours to maximize effectiveness.

It is important to note that it does not kill existing crabgrass but prevents new growth. The product is not available in certain regions like Alaska and Hawaii, which could be a limitation for some users. The Scotts Turf Builder Triple Action1 offers a comprehensive solution for weed control, crabgrass prevention, and lawn feeding.

The Scotts Halts Crabgrass & Grassy Weed Preventer is designed to help you maintain a weed-free lawn by preventing the germination of various types of grassy weeds. This product is effective in both the spring and fall, providing year-round protection against common pests like crabgrass, foxtail, and moss (except in California). The granular form makes it easy to apply, covering up to 10,000 sq. ft. with a single 20.12 lb. bag.

One of the standout features is its resilience; rain, snow, or freezing weather won't affect its performance once applied, ensuring consistent results under different weather conditions. It is suitable for all grass types except Dichondra or Bentgrass, which makes it versatile for different lawns. Potential users should note that while it is an effective pre-emergent solution, it may not be the best choice for an organic approach.

This product remains a strong choice for those seeking a reliable and easy-to-use pre-emergent weed killer.

The Scotts Turf Builder Halts Crabgrass Preventer with Lawn Fertilizer offers a dual function of preventing crabgrass and other listed weeds, while also fertilizing your lawn. This product is designed for use in early spring and is effective under various weather conditions, such as rain or snow, which is a significant advantage.

One 13.35 lb. bag covers a substantial area of 5,000 square feet, making it suitable for larger lawns. However, it's important to note that this product should not be used on Dichondra and Bentgrass lawns, which may limit its applicability for some users.

This product is especially beneficial for those looking to tackle crabgrass and other weeds early in the season while promoting a lush, green lawn.