7 Best Summer Lawn Care Fertilizers 2025 in the United States

Scotts Green Max Lawn FoodFL is a well-regarded summer lawn care fertilizer that stands out for its dual-action formula combining fertilizer and iron supplement. An impressive feature is its ability to feed the lawn for up to 3 months while providing visible greening in just 3 days, thanks to Scotts All-in-One Particles technology, which ensures a balanced distribution of nutrients in each particle. This makes it convenient for homeowners who want quick results and long-lasting care without frequent applications.

Additionally, it's suitable for all grass types, enhancing its versatility. The product covers a substantial area of 10,000 sq. ft., making it ideal for medium to large lawns. Its slow-release nature helps maintain nutrient availability over time, reducing the need for constant reapplication.

However, it's important to note that Scotts Green Max Lawn FoodFL is only available in Florida, which limits its accessibility to residents in other regions. Also, while the granule form is easy to apply, users must water their lawn post-application to activate the formula, adding an extra step to the process. The N-P-K ratio of 33:0:2 is highly nitrogen-focused, which is excellent for promoting grass growth but may lack balanced support for root development.

The Scotts Turf Builder Southern Summer and Spring All-In-One Particle is a solid choice for those looking to maintain a healthy lawn in Southern climates. One of its strengths is its tailored formulation for Southern lawns, making it effective for grass types like Bermuda, St. Augustine, and Zoysia. This fertilizer is designed to be applied in both Spring and Summer, which provides flexibility in your lawn care routine.

Covering up to 15,000 square feet, it is suitable for large lawns, and the granules ensure consistent distribution of nutrients, promoting even growth and color. The product also enhances root strength, improving resilience against heat and drought, which are common in Southern regions. Additionally, its formulation aids in better water and nutrient absorption, contributing to a healthier lawn.

One of the major conveniences is that you can re-enter the lawn immediately after application, allowing you to enjoy your outdoor space without interruption. Despite these minor shortcomings, it is a reliable product for enhancing lawn health in Southern climates.

The Advanced 16-4-8 Balanced NPK Lawn Food Quality Liquid Fertilizer is designed for summer lawn care. With a 16-4-8 N-P-K ratio, it provides a balanced mix of nitrogen, phosphorus, and potassium, essential for healthy grass growth. The high nitrogen content promotes lush, green lawns, while phosphorus supports root development, and potassium enhances tolerance to temperature extremes and drought. This liquid formula includes organic components like seaweed and fish emulsion, adding rich organic matter to the soil for better nutrient uptake.

Its slow-release nature helps maintain consistent nutrient supply over time, reducing the need for frequent applications. The product is versatile and suitable for various grass types, such as Bermuda, St. Augustine, Zoysia, and more, making it a good all-round choice for different lawns. It comes in a ready-to-use sprayer, simplifying the application process for homeowners.

However, the fertilizer primarily focuses on lawn nourishment and does not contain explicit weed or pest control elements, which might require additional treatments for comprehensive lawn care.