Best Grassy Weed Killers of 2026

Scotts Halts Crabgrass & Grassy Weed Preventer is a powerful weed killer that allows a one-time application to prevent crabgrass and other problem weeds all season long. The product is suitable for use both in spring and fall, where it can prevent winter weeds such as poa annua, henbit, and chickweed. It is unaffected by rain, snow or freezing weather after application, ensuring reliable weed control. Additionally, the product can prevent moss when applied in the fall.

Scotts Crabgrass Preventer helps you prevent crabgrass all season long. This pre-emergent grassy weed killer stops crabgrass before it even starts growing. By applying it early in the spring, you can enjoy a crabgrass-free lawn throughout the season. Alternatively, applying it in the fall can prevent winter weeds like Poa annua, henbit, and chickweed from taking over. Remember not to use this product on Dichondra and Bentgrass. With one bag covering 5,000 sq. ft., Scotts Crabgrass Preventer is a convenient and effective solution for maintaining a weed-free lawn.

This is a weed killer herbicide product called BASF Drive XLR8 Crabgrass Herbicide, which is sold on Amazon. It belongs to the category of weed killers, and is specifically designed to kill crabgrass.

Scotts Crabgrass Preventer is designed to stop the growth of various lawn weeds, allowing you to maintain a lush and healthy yard. By applying this pre-emergent weed killer in early spring or fall, you can effectively prevent the germination of troublesome weeds like crabgrass and foxtail. This product works on all grass types, providing versatile lawn care. Additionally, it remains effective even after rain or snow, ensuring your lawn stays protected regardless of weather conditions. With coverage for up to 5,000 square feet, it offers a convenient solution for larger areas.

Liquid Harvest Weed Killer is a potent solution with 18.92% Quinclorac concentration, ensuring maximum weed control. Its rapid action provides visible results swiftly, making it ideal for lawns, gardens, and commercial spaces. The residual control prevents weed reappearance, keeping your outdoor areas weed-free for an extended period. With the ability to combat common broadleaf and grassy weeds, including clover, dandelion, crabgrass, and foxtail, this versatile solution is your go-to for a weed-free environment.

Liquid Harvest Weed Killer is a potent solution with 18.92% Quinclorac concentration, ensuring maximum weed control and long-lasting results. Its fast action provides visible outcomes, suitable for lawns, gardens, and commercial spaces. This herbicide effectively targets common broadleaf weeds like clover, dandelion, and chickweed, along with grassy weeds such as crabgrass and foxtail. With residual control, it prevents weed regrowth, offering you a weed-free environment for an extended period.

Roundup Weed Killer Plus provides long-lasting weed protection for up to 12 months. This product kills and prevents various tough weeds and grasses, including clover, dandelion, crabgrass, and poison ivy. It is rainproof within 30 minutes, delivering quick visible results. Use it to eliminate existing weeds and stop new ones from growing in non-lawn areas like driveways, sidewalks, and patios. The Comfort Wand with continuous spray ensures easy application without straining your hands.

Atticus Torocity Herbicide offers a reliable solution for lawn care with its 40% mesotrione formula, the same trusted ingredient used in top brands. This means you get proven weed control for both new and established turf, helping you maintain a healthy lawn. The product is especially convenient because it works both before and after weeds appear, giving you more flexibility in timing your treatments. You can stop weeds from germinating and also eliminate existing ones. Additionally, it’s ideal for seeding and renovating lawns with grasses like Kentucky bluegrass and tall fescue, preventing weed competition and encouraging your grass to grow strong.

The Roundup Crabgrass Destroyer2 is designed to tackle crabgrass and other grassy weeds right from the root, giving you a cleaner lawn. It’s especially helpful if you’re dealing with stubborn weeds that are hard to remove. You can safely use it on common lawn grasses like Kentucky bluegrass and fescues, so it won’t harm your healthy grass. For best results, apply it when weeds are young and actively growing, and when temperatures are between 45°F and 90°F. This ensures the product works effectively and helps you maintain a weed-free yard with ease.

The Southern Ag Atrazine St. Augustine Weed Killer is a highly effective specialty herbicide that controls weeds in St. Augustine and Centipede Grasses. With one quart treating 3,720 sq ft, it is perfect for large lawn areas. The lightweight package makes it easy to handle and store, with dimensions of 5.842 L x 19.177 H x 12.954 W (centimeters).