10 Best Weed Feed Fertilizer 2025 in the United States

The Roundup Weed & Grass Killer₄ Concentrate is a versatile weed control solution designed for use in various areas of your yard such as flower beds, walkways, and around trees. It is effective against tough weeds like dandelion, crabgrass, poison ivy, clover, and other broadleaf weeds by killing them to the root.

This concentrate is rainproof within 30 minutes and shows visible results within a few hours, making it a fast-acting option for homeowners. It is also flexible in terms of planting, allowing planting from 1 to 30 days after application, depending on the specific instructions in the provided booklet.

This product requires mixing according to label directions and covers up to 1,500 square feet per 16 fluid ounces when applied with a tank or hose-end sprayer. However, it is important to note that this is a liquid form product and may not be as convenient as granular options for some users. Additionally, while effective, its active ingredients—Triclopyr, Triethylamine Salt, Fluazitop-P-Butyl, and Diquat Dibromide—might raise concerns regarding the safety for pets and children, so caution should be exercised.

The Scotts Turf Builder SummerGuard Lawn Food with Insect Control is a granular lawn fertilizer designed to feed your grass while also protecting it from a range of lawn pests like ants, chinch bugs, armyworms, and ticks. Its N-P-K ratio of 20-0-8 means it provides a good amount of nitrogen for strong, green growth and potassium for stress resistance, but it contains no phosphorus, which is fine if your soil already has enough or if local regulations limit phosphorus use. This product is intended mainly for summertime application on dry lawns when you notice insect activity, making it a convenient two-in-one solution for both feeding and pest control.

Each 40-pound bag covers up to 15,000 square feet, which is suitable for medium to large lawns. Since it comes in granular form, it’s easy to apply with a spreader and won’t require mixing like liquid options, which some users find more convenient. This product is a solid choice if you're looking for something that strengthens your lawn and handles insect problems during hotter months, but you may need a different product if weed control or specific safety assurances are a priority.

The Scotts Turf Builder Weed & Feed3 is a granular weed killer plus lawn fertilizer that covers up to 5,000 sq. ft. This product is designed to control over 50 types of lawn weeds, including common ones like dandelion and clover, while also feeding your lawn to help it grow thicker and healthier. It works best when applied to a wet lawn during active weed growth, ideally when temperatures are between 60°F and 90°F.

This makes it suitable for use in different types of grass like Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass, which adds to its versatility. However, it's important to note that this product is not available in Florida, which may limit its accessibility for some users.

Weighing 14.29 pounds, the product is relatively easy to handle and apply, but it's crucial to follow application guidelines to avoid any potential lawn damage.