10 Best Fertilizer for St Augustine Grass in 2026
Updated on
April 2026
#1
Best Choice
- Specifically formulated for St. Augustine grass, encouraging optimal growth.
- Promotes dense turf and robust root systems for a lush green appearance.
- Delivers balanced nutrients suitable for warm-season lawns, minimizing stress and buildup.
- Effective for both residential and commercial lawns, ideal for established St. Augustine grass.
- Produced in the USA.
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- Specifically formulated for St. Augustine grass, encouraging optimal growth.
- Promotes dense turf and robust root systems for a lush green appearance.
- Delivers balanced nutrients suitable for warm-season lawns, minimizing stress and buildup.
- Effective for both residential and commercial lawns, ideal for established St. Augustine grass.
- Produced in the USA.
#2
Best Value
11% Off
- Dual-action fertilizer that provides deep lawn greening within 3 days
- Contains 5% iron to accelerate the greening process
- Suitable for all grass types in spring, summer, or fall applications
- Non-staining formula when applied as directed
- Covers an area of 5,000 sq. ft. with a 16.67 lb. bag
- Immediate re-entry to the lawn after application
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- Dual-action fertilizer that provides deep lawn greening within 3 days
- Contains 5% iron to accelerate the greening process
- Suitable for all grass types in spring, summer, or fall applications
- Non-staining formula when applied as directed
- Covers an area of 5,000 sq. ft. with a 16.67 lb. bag
- Immediate re-entry to the lawn after application
#3
- Fertilizer designed specifically for Southern lawns
- All-in-One Particles promote strong, deep root development to withstand heat and drought
- Can be applied to wet or dry lawns during the growing season
- Safe for use on Southern grass varieties
- Covers up to 5,000 sq. ft. per 14.06 lb. bag
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- Fertilizer designed specifically for Southern lawns
- All-in-One Particles promote strong, deep root development to withstand heat and drought
- Can be applied to wet or dry lawns during the growing season
- Safe for use on Southern grass varieties
- Covers up to 5,000 sq. ft. per 14.06 lb. bag
#4
- Formulated specifically for St. Augustine grass to encourage healthy growth.
- Promotes dense turf, robust roots, and a vibrant green lawn.
- Delivers balanced nutrients suitable for warm-season lawns without causing stress or buildup.
- Suitable for both residential and commercial St. Augustine grass areas.
- Produced in the USA.
Read More
- Formulated specifically for St. Augustine grass to encourage healthy growth.
- Promotes dense turf, robust roots, and a vibrant green lawn.
- Delivers balanced nutrients suitable for warm-season lawns without causing stress or buildup.
- Suitable for both residential and commercial St. Augustine grass areas.
- Produced in the USA.
#5
15% Off
- Combines weed killer and fertilizer to eliminate existing weeds and enhance lawn growth
- Effectively controls over 50 types of lawn weeds, such as clover, dandelion, and plantain
- Best applied to wet lawns during active weed growth when temperatures are between 60°F and 90°F
- Suitable for various grass types including Bahiagrass, Bermudagrass, and Bluegrass
- Covers an area of 5,000 sq. ft. per 14.29 lb. bag
- Not available for purchase in Florida
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- Combines weed killer and fertilizer to eliminate existing weeds and enhance lawn growth
- Effectively controls over 50 types of lawn weeds, such as clover, dandelion, and plantain
- Best applied to wet lawns during active weed growth when temperatures are between 60°F and 90°F
- Suitable for various grass types including Bahiagrass, Bermudagrass, and Bluegrass
- Covers an area of 5,000 sq. ft. per 14.29 lb. bag
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#6
- Specially designed for Southern lawns, effective on Bermudagrass, St. Augustinegrass (including Floratam), Zoysia, and Centipedegrass
- Provides up to 6 months of protection against broadleaf weeds, grassy weeds, and crabgrass
- Effectively eliminates common weeds such as Dandelion, Dollarweed, and Clover
- Nourishes your lawn, promoting growth and enhancing color
- Not available for purchase in certain states including AK, CA, CO, and others
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- Specially designed for Southern lawns, effective on Bermudagrass, St. Augustinegrass (including Floratam), Zoysia, and Centipedegrass
- Provides up to 6 months of protection against broadleaf weeds, grassy weeds, and crabgrass
- Effectively eliminates common weeds such as Dandelion, Dollarweed, and Clover
- Nourishes your lawn, promoting growth and enhancing color
- Not available for purchase in certain states including AK, CA, CO, and others
#7
6% Off
- Feeds and fortifies grass to enhance resistance to future issues
- Promotes strong root development and increases water and nutrient absorption
- Applicable to both wet and dry lawns
- Effective on all grass varieties
- Covers an area of 5,000 sq. ft. with one 12.5 lb. bag
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- Feeds and fortifies grass to enhance resistance to future issues
- Promotes strong root development and increases water and nutrient absorption
- Applicable to both wet and dry lawns
- Effective on all grass varieties
- Covers an area of 5,000 sq. ft. with one 12.5 lb. bag
#8
- Contains 6% iron for enhanced greening.
- Covers up to 12,000 square feet.
- Delivers essential nutrients for St Augustine lawns.
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- Contains 6% iron for enhanced greening.
- Covers up to 12,000 square feet.
- Delivers essential nutrients for St Augustine lawns.
#9
- NPK Lawn Food with a nutrient ratio of 16-4-8, combining essential macronutrients for optimal lawn health.
- Formulated for easy application, promoting greening and growth across various grass types.
- Includes 4% Phosphorus to support root development and early plant vigor.
- Features 8% Potassium to improve drought resistance and nutrient transport within plants.
- Ideal for maintaining lawn health, enhancing greenness, promoting growth, and addressing macronutrient deficiencies.
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- NPK Lawn Food with a nutrient ratio of 16-4-8, combining essential macronutrients for optimal lawn health.
- Formulated for easy application, promoting greening and growth across various grass types.
- Includes 4% Phosphorus to support root development and early plant vigor.
- Features 8% Potassium to improve drought resistance and nutrient transport within plants.
Read More
#10
- NPK Lawn Food with a nutrient ratio of 16-4-8, combining essential macronutrients for optimal lawn health.
- Formulated for easy application, promoting greening and growth across various grass types.
- Includes 4% Phosphorus to support root development and early plant vigor.
- Features 8% Potassium to improve drought resistance and nutrient transport within plants.
- Ideal for maintaining lawn health, enhancing greenness, promoting growth, and addressing macronutrient deficiencies.
Read More
- NPK Lawn Food with a nutrient ratio of 16-4-8, combining essential macronutrients for optimal lawn health.
- Formulated for easy application, promoting greening and growth across various grass types.
- Includes 4% Phosphorus to support root development and early plant vigor.
- Features 8% Potassium to improve drought resistance and nutrient transport within plants.
Read More
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How We Estimate & Rank
We make shopping simple by hand-picking the top 10 Fertilizer for St Augustine Grass just for you. Our team focuses on what’s available right now, what’s popular with other shoppers, and, most importantly, what’s most relevant to your search. We cover leading brands such as TPS NUTRIENTS, Scotts, BioAdvanced, Lesco, Simple Lawn Solutions, and other trusted names in this category. By filtering out the noise, we ensure you only see high-quality options that actually meet your needs. It’s all the best finds, minus the endless scrolling!
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PRODUCTS SCANNED & ANALYZED
Final Recommendations
We’ve selected three standout options to make your choice easier.
BEST OVERALL
Our overall winner is St Augustine Grass Fertilizer – Liquid Lawn Food for Thicker Turf by TPS NUTRIENTS, earning top marks for its balanced combination of quality, performance, and price.
BEST VALUE
The best value for most shoppers is Scotts Green Max Lawn Food by Scotts, earning consistently positive feedback for its performance and accessible pricing.
BEST DEAL
The best deal available right now for Garden Fertilizers is Scotts Turf Builder Weed and Feed3 by Scotts, now offered at 15% off.
