10 Best Granular Weed Killer 2025 in the United States

Scotts Halts Crabgrass & Grassy Weed Preventer is a pre-emergent weed killer designed to stop the germination of various lawn weeds, including crabgrass, foxtail, spurge, and more. This product is highly effective for early spring and fall applications and continues to perform well even in unfavorable weather conditions like rain or freezing temperatures, providing a dependable solution for weed control throughout the season.

Covering up to 10,000 sq. ft. with a single 20.12 lb. bag, it offers extensive coverage suitable for large lawns. However, it's important to note that it is not suitable for Dichondra or Bentgrass lawns, which might be a limitation for some users. Additionally, while it is generally safe for most grass types, users should ensure careful application to avoid any accidental damage to desirable plants.

The ease of application is enhanced by its granular form, making it simpler to spread evenly across the lawn. This product is a solid choice for those looking to prevent a broad range of grassy weeds in their lawns efficiently.

The Scotts Turf Builder Bonus S Southern Weed & FeedF2 is a specialized product designed for Southern lawns, particularly those in Florida. It effectively targets and kills various common weeds such as dollarweed, clover, and dandelion, while simultaneously fertilizing the grass to promote thick, healthy growth. This dual-action functionality is a significant strength, making lawn care more efficient by combining weed control and fertilization in one product. With a coverage area of 5,000 sq. ft., it is suitable for medium-sized lawns, and the granular form ensures even application.

It is crucial to apply this product when grass and weeds are actively growing and to water it immediately after application, which might be a bit demanding for some users. Another limitation is its specificity to certain grass types—St. Augustinegrass, Centipedegrass, Zoysiagrass, and Carpetgrass—making it unsuitable for other lawns. Moreover, its environmental impact needs careful consideration, as improper usage could affect non-target plants.

The product's ease of application is generally good, but precise timing and watering requirements could pose challenges. Scotts Turf Builder Bonus S Southern Weed & FeedF2 is excellent for users with the specified grass types in Florida looking for a combined weed control and lawn fertilization solution, provided they can adhere to the application guidelines.

Scotts WeedEx Prevent with Halts is a granular weed killer designed to stop crabgrass and other grassy weeds before they start. One of its major strengths is its effectiveness in preventing crabgrass all season long when applied in early spring. It can also be applied in the fall to combat winter weeds, offering versatile seasonal usage.

The product covers a substantial area of 5,000 square feet, making it suitable for medium to large lawns. However, it is important to note that it should not be applied to Dichondra and Bentgrass, which could limit its use for some users. Additionally, the active ingredient, Pendimethalin, is effective but does come with environmental considerations, as it may have impacts on non-target plants and ecosystems.

Careful application according to instructions is essential. The 10.06 lb. bag is relatively easy to handle and the granular form simplifies the application process. It's a practical option for homeowners looking to maintain their lawns free of troublesome weeds through proactive prevention.