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10 Best Nitrogen Lawn Fertilizer 2025 in the United States

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Our Top Picks

#1

Winner

Scotts Turf Builder Triple Action1 - Combination Weed Control, Weed Preventer, and Fertilizer, 33.94 lbs., 12,000 sq. ft.

Rating
9.9
Chosen by1,371
Application Method

Most important from
2120 reviews

Application Method
Applying it is straightforward; just sprinkle it and let it work its magic, no special skills required.

The Scotts Turf Builder Triple Action1 is a versatile nitrogen lawn fertilizer that also controls and prevents weeds. It stands out due to its three-in-one formula, which kills existing weeds, prevents the growth of crabgrass, and nourishes your lawn to promote thick, green grass. This product is particularly effective against common lawn weeds like dandelion, clover, and chickweed, although it won't kill existing crabgrass. It's suitable for a variety of grass types including Kentucky Bluegrass, Perennial Ryegrass, and Bermudagrass, making it a good option for diverse lawns.

Application is straightforward: spread it on a wet lawn and water it in after 24 hours. It's best used in early spring when dandelions are actively growing. A 33.94 lb. bag can cover up to 12,000 square feet, providing substantial coverage for large areas. The active ingredients, Pendimethalin, 2, 4-D, and Dicamba, help in weed control and lawn feeding.

One notable drawback is that it may not be as effective on lawns that already have crabgrass. Additionally, the product requires attention to timing for optimal results, particularly in early spring. Those with smaller lawns might find the 33.94 lb. bag to be more than they need. Scotts Turf Builder Triple Action1 is ideal for homeowners looking for a comprehensive lawn care solution that addresses weeds and fertilizes in a single application, especially if used in the right season and with the correct application method.

Rating
9.9
Chosen by1,371
Application Method

Most important from
2120 reviews

Application Method
Applying it is straightforward; just sprinkle it and let it work its magic, no special skills required.
#2

Scotts Turf Builder Lawn Food, Fertilizer for All Grass Types, 15,000 sq. ft., 37.5 lbs.

Rating
9.8
Application Method
Seasonal Considerations
Soil Type and Condition

Most important from
6841 reviews

Application Method
Even beginners find it easy to use with clear instructions provided on the bag.
Seasonal Considerations
Long-time lawn enthusiasts praise it for restoring their lawns to a thick, lush, and deep green state, even under extreme heat conditions.
Soil Type and Condition
It works well on various grass types, including bermuda and zoysia, but care must be taken to avoid burning the edges of the yard.

Scotts Turf Builder Lawn Food is a versatile fertilizer suitable for all grass types, making it a convenient option for homeowners. One of its strengths is its ability to feed and strengthen grass, helping protect against future problems and improving the lawn’s ability to absorb water and nutrients, which is crucial for maintaining a healthy lawn.

The product covers a large area of up to 15,000 sq. ft., making it cost-effective for those with sizable lawns. The granule form allows for easy application on either wet or dry lawns, providing flexibility based on your lawn’s condition at the time of application. Another advantage is its universal compatibility with all grass types, which removes the guesswork for users who may not know their specific grass type.

Scotts Turf Builder Lawn Food is a solid choice for general lawn maintenance, especially for those seeking an easy-to-use and widely applicable fertilizer.

Rating
9.8
Application Method
Seasonal Considerations
Soil Type and Condition

Most important from
6841 reviews

Application Method
Even beginners find it easy to use with clear instructions provided on the bag.
Seasonal Considerations
Long-time lawn enthusiasts praise it for restoring their lawns to a thick, lush, and deep green state, even under extreme heat conditions.
Soil Type and Condition
It works well on various grass types, including bermuda and zoysia, but care must be taken to avoid burning the edges of the yard.
#3

Scotts Turf Builder SummerGuard Lawn Food with Insect Control, Fertilizer and Insect Killer, 15,000 sq. ft., 40.05 lbs.

Rating
9.5
Application Method
Soil Type and Condition

Most important from
7769 reviews

Application Method
Easy to apply and showed a positive difference in just a couple of weeks.
Soil Type and Condition
Noticeable difference in the health of the lawn since using it.

Scotts Turf Builder SummerGuard Lawn Food with Insect Control is a well-rounded product designed to nourish and protect your lawn during the summer months. With a nitrogen content of 20%, it provides sufficient nutrients to promote healthy grass growth. The granular form ensures a slow-release of nutrients, which is beneficial for maintaining steady growth and reducing the risk of burning the lawn.

One of its standout features is the integrated insect control, which helps manage a variety of common pests such as ants, armyworms, and ticks, making it a dual-purpose product. This can save time and effort for homeowners who would otherwise need separate products for fertilization and pest control. The application method is straightforward: apply to a dry lawn when insect activity is noted, which aligns well with its seasonal use during summer.

It is suitable for all grass types and covers a substantial area of 15,000 square feet, making it ideal for larger lawns. A minor drawback is that it may not be suitable for those who prefer liquid fertilizers or those who have specific soil conditions that require tailored solutions. Additionally, the 40.05 lbs. bag might be heavy for some users to handle. This product is best suited for homeowners looking for a comprehensive lawn care solution that addresses both feeding and pest control during the challenging summer season.

Rating
9.5
Application Method
Soil Type and Condition

Most important from
7769 reviews

Application Method
Easy to apply and showed a positive difference in just a couple of weeks.
Soil Type and Condition
Noticeable difference in the health of the lawn since using it.

Buying Guide for the Best Nitrogen Lawn Fertilizer

Choosing the right nitrogen lawn fertilizer is essential for maintaining a healthy, green lawn. Nitrogen is a key nutrient that promotes lush, vigorous growth and helps your grass recover from stress. When selecting a nitrogen fertilizer, it's important to understand the different types and how they can benefit your lawn. Consider your lawn's specific needs, the time of year, and your maintenance preferences to make the best choice.
Nitrogen ContentNitrogen content is the percentage of nitrogen in the fertilizer, usually indicated by the first number in the N-P-K ratio (Nitrogen-Phosphorus-Potassium). This spec is important because nitrogen is crucial for leaf growth and overall plant health. Fertilizers with high nitrogen content (20% or more) are ideal for promoting rapid growth and greening, while those with lower nitrogen content (10-15%) are better for maintaining established lawns. Choose a higher nitrogen content if your lawn is thin or yellowing, and a lower content for regular maintenance.
Release TypeThe release type refers to how quickly the nitrogen is made available to the grass. There are two main types: quick-release and slow-release. Quick-release fertilizers provide an immediate boost of nitrogen, which is great for a fast green-up but can require more frequent applications. Slow-release fertilizers release nitrogen gradually over time, providing a steady supply of nutrients and reducing the risk of burning the grass. Choose quick-release for a rapid response or if you need to correct a deficiency quickly, and slow-release for long-term maintenance and fewer applications.
Application MethodThe application method refers to how the fertilizer is applied to the lawn. Common methods include granular, liquid, and hose-end sprayers. Granular fertilizers are easy to apply with a spreader and provide even coverage, making them a popular choice for most homeowners. Liquid fertilizers are absorbed quickly and can be applied with a sprayer, which is useful for spot treatments or smaller areas. Hose-end sprayers are convenient for large areas and provide a uniform application. Choose the method that best fits your lawn size and your comfort level with the application process.
Seasonal ConsiderationsDifferent times of the year require different types of nitrogen fertilizers. In the spring, a high-nitrogen fertilizer can help jumpstart growth after winter dormancy. During the summer, a balanced or slow-release fertilizer can help maintain growth without causing stress. In the fall, a fertilizer with a lower nitrogen content but higher potassium can help prepare the lawn for winter. Consider the season and your lawn's growth cycle when selecting a fertilizer to ensure it meets the specific needs of your grass at that time.
Soil Type and ConditionThe type and condition of your soil can affect how well your lawn absorbs nitrogen. Sandy soils drain quickly and may require more frequent applications of nitrogen, while clay soils retain nutrients longer but can become compacted. Conduct a soil test to determine your soil's pH and nutrient levels, and choose a fertilizer that complements your soil type. Adjust your fertilizer choice based on the results to ensure your lawn gets the right amount of nitrogen for optimal growth.

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