10 Best Grass Fertilizers 2025 in the United States

Scotts Turf Builder Starter Fertilizer is designed specifically for new grass, such as when you're planting seed, laying sod, or reseeding your lawn. Its main strength is the All-in-One Particles technology, which means the nutrients are blended evenly, providing the right balance to help grass grow thicker and quicker compared to unfed lawns. This fertilizer comes in granule form, making it easy to spread. It's safe for all grass types and can be applied anytime you plant new grass, giving flexibility for different planting situations.

One 42-pound bag covers up to 14,000 sq. ft., making it suitable for medium to large lawns. The product is a straightforward choice for those starting a new lawn who want a fertilizer that supports early grass growth with ease of use.

The Scotts Turf Builder WinterGuard Fall Lawn Fertilizer is designed specifically for use in the fall to prepare your lawn for winter and promote stronger, deeper roots for spring growth. Its balanced NPK ratio, suggested by the 1:1:1 mixing ratio, supports recovery from summer stress like heat and drought. Being a granular fertilizer, it’s easy to apply on both wet or dry lawns and covers up to 4,000 square feet per 10-pound bag, making it suitable for medium-sized yards.

It’s also formulated for all grass types, adding versatility. This fertilizer provides a straightforward, fall-specific lawn treatment to boost root strength going into winter, making it an effective choice for general lawn care during this season.

The Scotts Turf Builder Weed & Feed3 is a combined weed killer and lawn fertilizer designed to enhance your lawn by eliminating weeds and promoting grass growth. Its main selling point is its dual functionality: it controls over 50 types of common lawn weeds like dandelion and clover while simultaneously nourishing your grass. This makes it particularly useful for those looking to both maintain and improve their lawn's health with one product.

The product's effectiveness in weed control and lawn feeding is a clear strength. It's suitable for a variety of grass types including Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass, providing flexibility for different lawn types. It's best applied in the spring or fall when daytime temperatures are between 60°F and 90°F, making it a seasonal product.

The granule form ensures a slow and steady release of nutrients, although it requires a wet lawn for application, which could be seen as an inconvenience. Covering up to 5,000 sq. ft. with a 14.29 lb. bag, it offers good coverage for medium to large lawns. One notable limitation is its unavailability in Florida, which could be a downside for residents in that area. It is a practical option for homeowners who want a dual-action product to both fertilize their lawns and control weeds effectively.