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 Southern Triple Action is designed specifically for southern grass types like St. Augustinegrass, Centipedegrass, Zoysiagrass, and Carpetgrass. It combines three benefits in one product: killing common lawn weeds, preventing and eliminating fire ants, and feeding your lawn to help it resist heat and drought. This multi-purpose approach is great if you want to tackle several lawn problems at once, especially insect and weed issues common in southern regions.

The granulated formula covers up to 8,000 square feet, making it suitable for medium to large lawns. The fertilizer is formulated to strengthen grass rather than just provide quick growth, which suits seasonal use in warmer months. It works best in soil types commonly found in the South.

Because it targets southern grasses and specific pests, it’s less useful in other regions or for different grass types. Also, the built-in weed killer focuses on a limited range of common weeds, so stubborn or uncommon weeds may need separate treatment. If your lawn matches the recommended grass types and you face fire ant or pest challenges, this product offers a convenient and effective all-in-one solution.

Scotts Green Max Lawn Food is a dual-action fertilizer designed to provide rapid greening within just three days. One of its standout features is the inclusion of 5% iron, which significantly enhances the greening process, making your lawn look lush and healthy quickly.

This product is versatile, suitable for application in spring, summer, or fall, and it can be used on any type of grass, making it a flexible option for many lawns. Additionally, the product is designed not to stain concrete or other surfaces, which is a practical benefit for maintaining a clean outdoor space. A single 16.67-pound bag can cover up to 5,000 square feet, making it a substantial option for medium to large lawns.

The granulated form ensures easy application and even distribution across your lawn. One notable strength is the immediate re-entry after application; you don't need to wait, making it quite convenient. This product seems best suited for those looking for quick results and ease of use, especially if iron supplementation is needed for greener grass.