Top 5 Ranked Products
We analyzed millions of Amazon products to handpick the top recommendations just for you.

#1 Ranked
Scotts Turf Builder WinterGuard Fall Lawn Fertilizer for All Grass Types, 4,000 sq. ft., 10 lbs.
Price: $22.05
Rating: ★★★★★
ASIN: B0BGMM1FZV
Score: 94%
Overview:
Scotts Turf Builder WinterGuard Fall Lawn Fertilizer is designed to enhance lawn health during the critical fall season, promoting strong root development in preparation for spring. This fertilizer is formulated to provide essential nutrients that help lawns recover from the stresses of summer, including heat, drought, and wear from foot traffic. With a coverage area of 4,000 square feet per 10 lbs. bag, it caters to all grass types, making it a versatile choice for homeowners looking to improve their lawn's resilience and appearance.
The application process is straightforward, allowing for use on either wet or dry lawns, which adds to its convenience. By feeding the lawn in the fall, this product helps ensure a robust foundation for growth when the weather warms up again. Its ability to support overall lawn recovery and health makes it an essential component of seasonal lawn care routines.
Pros:
- Root Development: Promotes strong, deep roots for better lawn health in spring.
- Versatile Use: Suitable for all grass types, making it accessible for various lawns.
- Convenient Application: Can be applied to wet or dry lawns, enhancing ease of use.
Cons:
- Seasonal Limitation: Best used only in the fall, limiting its application timeframe.
- Coverage Area: While it covers 4,000 sq. ft., larger lawns may require multiple bags, increasing cost.
- Nutrient Release Timing: Effectiveness may vary based on local climate conditions and timing of application.

#2 Ranked
Scotts Turf Builder THICK'R LAWN Grass Seed, Fertilizer, and Soil Improver for Sun & Shade, 4,000 sq. ft., 40 lbs.
Price: $56.39
Rating: ★★★★☆
ASIN: B074P1578H
Score: 95%
Overview:
Scotts Turf Builder THICK'R LAWN is a comprehensive lawn care solution designed to enhance the thickness and vitality of grass in both sunny and shaded areas. This product combines grass seed, fertilizer, and soil improver into a single formula, aiming to transform thin lawns into lush, green spaces. With the promise of up to a 50% thicker lawn with just one application, it is formulated to support robust root development, making it an appealing choice for homeowners looking to revitalize their outdoor spaces.
The 40 lbs. bag of Scotts Turf Builder THICK'R LAWN is capable of covering an area of 4,000 square feet, making it suitable for medium to large lawns. The recommended application schedule includes one treatment in the spring and another in late summer or early fall, allowing for optimal growth during peak seasons. However, results may vary based on the existing condition of the lawn, which is an important consideration for potential users.
Pros:
- 3-in-1 Formula: Combines grass seed, fertilizer, and soil improver for comprehensive lawn care.
- Thicker Lawn: Promises up to 50% thicker grass with proper application and care.
- Wide Coverage: One bag covers up to 4,000 sq. ft., making it efficient for larger areas.
Cons:
- Variable Results: Effectiveness may vary significantly based on the current lawn condition.
- Application Timing: Requires specific timing for optimal results, which may be inconvenient for some users.
- Limited to Specific Conditions: Best suited for sun and shade, may not perform well in extreme conditions or with certain grass types.

#3 Ranked
Scotts Turf Builder Rapid Grass Sun & Shade Mix, Combination Seed and Fertilizer, Grows Green Grass in Just Weeks, 5.6 lbs.
Price: $34.59
Rating: ★★★★☆
ASIN: B08KGYF4RX
Score: 92%
Overview:
Scotts Turf Builder Rapid Grass Sun & Shade Mix is a combination seed and fertilizer designed to expedite grass growth, making it ideal for both new lawns and problem areas. This innovative product promises to grow grass up to twice as fast compared to traditional seed methods, enabling users to achieve a lush, green lawn in just weeks. The mix is formulated for use in varying sunlight conditions, making it versatile for different lawn environments, and is best applied during the spring or fall when temperatures are optimal for growth.
The 5.6 lb. bag provides substantial coverage, accommodating new lawn needs for up to 839 square feet and overseeding for 2,800 square feet. This product is particularly beneficial for homeowners looking to rejuvenate their lawns quickly and effectively. However, availability may vary by location, which could limit access for some consumers.
Pros:
- Fast Growth: Grows grass up to 2X faster than seed alone, allowing for quicker lawn establishment.
- Versatile Application: Suitable for both sunny and shaded areas, accommodating various lawn conditions.
- Generous Coverage: Covers up to 839 sq. ft. for new lawns and 2,800 sq. ft. for overseeding, maximizing usability.
Cons:
- Temperature Sensitivity: Requires specific temperature conditions (60°F to 80°F) for optimal performance, limiting application times.
- Availability Issues: May not be available in every state, restricting access for some customers.
- Single Bag Limitation: The 5.6 lb. size may not be sufficient for larger projects, necessitating multiple purchases.

#4 Ranked
Scotts Turf Builder Lawn Food - Fertilizer for All Grass Types, 5,000 sq. ft., 12.5 lbs.
Price: $26.97
Rating: ★★★★☆
ASIN: B005W1QXQW
Score: 90%
Overview:
Scotts Turf Builder Lawn Food is a versatile fertilizer designed for all grass types, providing essential nutrients to enhance lawn health and resilience. With a coverage area of 5,000 square feet per 12.5 lbs. bag, it is suitable for both large and small lawns. The product not only feeds grass but also strengthens its roots, improving the overall ability of the lawn to absorb water and nutrients, which is crucial for maintaining a lush and vibrant yard.
The formulation allows for application on either wet or dry lawns, offering flexibility for users depending on weather conditions. Its ability to cater to any grass type makes it a convenient choice for homeowners looking to maintain a healthy lawn without the need for multiple products. The focus on building strong, deep roots positions this fertilizer as a preventive measure against future lawn problems, promoting long-term lawn vitality.
Pros:
- Versatile Application: Can be applied to wet or dry lawns, providing flexibility in use.
- Broad Compatibility: Effective on all grass types, making it suitable for diverse lawns.
- Root Strengthening: Enhances root growth, improving water and nutrient absorption.
Cons:
- Coverage Limitation: A single bag covers only 5,000 sq. ft., which may require multiple purchases for larger areas.
- Nutrient Release Time: May take time to see visible results, requiring patience from users.
- Potential Over-application: Risk of lawn burn if not applied according to instructions, necessitating careful usage.

#5 Ranked
Ultimate 3-18-18 NPK- Lawn Food Quality Liquid Fertilizer- Easy to Use Concentrated Spray- Any Grass Type- Summer & Fall Nutrients- Simple Lawn Solutions - Turf Hardiness & Root Vigor (32 Ounce)
Price: $23.79
Rating: ★★★★☆
ASIN: B06XB32CVV
Score: 84%
Overview:
The Ultimate 3-18-18 NPK Lawn Food is a high-quality liquid fertilizer designed to meet the nutritional needs of various grass types, particularly during summer and fall. With a specific focus on phosphorus and potassium, this fertilizer addresses deficiencies while promoting root development and overall lawn health. The product is easy to apply, featuring a convenient hose-end sprayer that allows users to cover up to 3,200 square feet efficiently, making it suitable for both novice and experienced gardeners.
In addition to its ease of use, this fertilizer is made from high-quality feed-grade ingredients, ensuring that it nourishes lawns to their full potential. Its formulation includes 3% nitrogen, which supports a balanced growth rate, while the high levels of phosphorus (18%) and potassium (18%) are particularly beneficial for establishing new lawns and enhancing stress resilience. Produced in the USA by a family-owned business with extensive experience in the turf and agriculture industry, this product emphasizes quality and effectiveness.
Pros:
- High Nutrient Content: Contains 18% phosphorus and potassium, essential for root development and stress endurance.
- Versatile Application: Suitable for all grass types, including Bermuda, St. Augustine, and Zoysia.
- User-Friendly: Comes with a hose-end sprayer for easy application, covering up to 3,200 square feet.
Cons:
- Low Nitrogen Level: At 3% nitrogen, it may not promote rapid growth for lawns needing quick green-up.
- Subtle Effects: Benefits from phosphorus may not be immediately visible, requiring patience for results.
- Limited Coverage: While it covers a large area, larger lawns may require multiple applications, increasing cost.
Product Information & Tips
Overview
As summer approaches, maintaining a healthy lawn becomes a priority for homeowners. The right grass fertilizer can significantly influence the growth, color, and overall health of grass during the warmer months. Selecting the best fertilizer involves understanding the specific needs of the grass type, local climate conditions, and the nutrient composition of the fertilizers available.
Summer can be particularly harsh on grass due to increased temperatures and potential drought conditions. Therefore, choosing a fertilizer that supports drought resistance and promotes deep root growth is essential. This analysis evaluates key criteria to help identify the best grass fertilizers suited for summer use.
Key Criteria
1. Nutrient Composition:
- The balance of nitrogen (N), phosphorus (P), and potassium (K) is crucial for healthy grass growth. A fertilizer with a higher nitrogen content supports lush green growth during the summer months.
2. Slow-Release Formulation:
- Slow-release fertilizers provide a steady supply of nutrients over time, reducing the risk of nutrient leaching and ensuring that grass receives nourishment consistently throughout the summer.
3. Water Retention Properties:
- Fertilizers that enhance soil moisture retention are vital during hot, dry periods. This helps to reduce stress on the grass and promotes healthier growth.
4. Type of Grass:
- Different grass types have varying nutritional needs. Understanding whether you have cool-season or warm-season grass will guide you in selecting the most effective fertilizer for your specific lawn.
5. Environmental Impact:
- Choosing environmentally friendly fertilizers minimizes runoff and pollution, contributing to sustainable lawn care practices. Organic options can improve soil health and are often safer for pets and children.
Frequently Asked Questions
Q1: What is the best time to apply fertilizer in summer?
A1: The best time to apply fertilizer is early in the morning or late in the evening when temperatures are cooler, which helps prevent burning the grass.
Q2: How often should I fertilize my lawn in summer?
A2: It is generally recommended to fertilize every 6 to 8 weeks during the summer, depending on the growth rate of the grass and the type of fertilizer used.
Q3: Can I use a weed and feed product in summer?
A3: Yes, but caution is advised as applying weed and feed during high-stress periods can harm the grass. It's best to apply when the grass is actively growing.
Q4: Is organic fertilizer effective for summer lawns?
A4: Yes, organic fertilizers can be effective; they often improve soil health and provide a slow release of nutrients, making them suitable for summer use.
Q5: What should I do if my grass turns brown after fertilizing?
A5: Brown grass may indicate fertilizer burn. Ensure proper watering after application, and consider adjusting the fertilizer type or amount for future applications.
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