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10 Best Grass Fertilizers 2025 in the United States

#1

Winner

9.7 score

Scotts Turf Builder Weed & Feed3, Weed Killer Plus Lawn Fertilizer, Controls Dandelion and Clover, 5,000 sq. ft., 14.29 lbs.

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.

Rating
9.7
Chosen by1,420
Seasonal Fertilizer

Most important from
31968 reviews

Seasonal Fertilizer
Following instructions and applying at the recommended time of year is essential for optimal results.
#2
9.4 score

Scotts Green Max Lawn Food, Lawn Fertilizer Plus Iron Supplement for Greener Grass in 3 Days, 5,000 sq. ft., 16.67 lbs.

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.

Rating
9.4
Release Rate

Most important from
8401 reviews

Release Rate
Immediate greening effect is impressive.
#3
9.1 score

Scotts Turf Builder Lawn Food - Fertilizer for All Grass Types, 5,000 sq. ft., 12.5 lbs.

Scotts Turf Builder Lawn Food is designed to feed and strengthen grass, making it robust against future issues. It is suitable for any grass type, making it versatile for various lawns. One of its strengths is its ability to build strong, deep roots, which enhance the lawn's capacity to absorb water and nutrients, leading to healthier grass. This fertilizer can be applied to wet or dry lawns, offering flexibility in its usage.

Top 10 Best Grass Fertilizers 2025 in the United States

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Buying Guide for the Best Grass Fertilizers

Choosing the right grass fertilizer is essential for maintaining a healthy and lush lawn. Fertilizers provide the necessary nutrients that grass needs to grow strong and green. When selecting a fertilizer, it's important to understand the different types and their specific benefits. This will help you make an informed decision based on your lawn's needs and conditions.
NPK RatioThe NPK ratio represents the percentage of nitrogen (N), phosphorus (P), and potassium (K) in the fertilizer. Nitrogen promotes leaf growth and vibrant green color, phosphorus supports root development, and potassium enhances overall health and disease resistance. For a lush lawn, a higher nitrogen content is often preferred. However, the right balance depends on your lawn's specific needs. For example, a new lawn may benefit from higher phosphorus to establish strong roots, while an established lawn may need more nitrogen for green growth.
Type of FertilizerFertilizers come in various forms, including granular, liquid, and organic. Granular fertilizers are easy to apply and provide a slow release of nutrients over time, making them ideal for long-term feeding. Liquid fertilizers offer quick nutrient absorption and are great for immediate results. Organic fertilizers are made from natural sources and improve soil health while providing nutrients. Choose the type based on your preference for application and the immediate needs of your lawn.
Release RateThe release rate of a fertilizer indicates how quickly the nutrients are made available to the grass. Slow-release fertilizers provide a steady supply of nutrients over an extended period, reducing the risk of over-fertilization and minimizing the need for frequent applications. Fast-release fertilizers deliver nutrients quickly, which can be beneficial for a quick green-up but may require more frequent applications. Consider your lawn care routine and how often you want to fertilize when choosing the release rate.
Seasonal FertilizerDifferent fertilizers are formulated for specific seasons. Spring fertilizers typically have higher nitrogen content to promote rapid growth and green-up after winter. Summer fertilizers focus on maintaining health and resilience during hot weather, often with balanced NPK ratios. Fall fertilizers are designed to strengthen roots and prepare the lawn for winter, usually with higher potassium content. Select a fertilizer based on the current season and the specific needs of your lawn during that time.
Soil pH CompatibilitySoil pH affects nutrient availability and grass health. Most grasses prefer a slightly acidic to neutral pH (6.0-7.0). Some fertilizers are formulated to adjust soil pH, either raising or lowering it to optimal levels. Testing your soil pH before choosing a fertilizer can help ensure that you select one that complements your soil conditions, promoting better nutrient uptake and overall lawn health.

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