10 Best Fertilizer for St Augustine Grass in Florida

Liquid and granular fertilizers tailored for St. Augustine in Florida enhance color and root growth; consider nutrient content and application method for best results.

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Choosing the best fertilizer for St. Augustine grass in Florida depends on your lawn’s specific needs, including growth speed, color, and resilience. Consider liquid versus granular options, nutrient balance, and whether the product supports deep roots and heat tolerance. This guide summarizes key products helpful for Florida’s warm climate and St. Augustine’s unique requirements.

How We Chose These Best Fertilizer For St Augustine Grass In Florida

Products are selected for their tailored formulation for St. Augustine grass in Florida, including balanced nutrients, ease of application, coverage area, and special features like iron content or weed control. They are meant for various lawn maintenance needs, from quick greening to repair, and are supported by reliable product notes indicating effectiveness, formulation for Florida climate, and user convenience. Compatibility with local conditions and comprehensive coverage are prioritized to help Florida homeowners cultivate healthy, vibrant lawns year-round.

Pros and Cons Comparison of the 10 Products

Source-grounded pros and considerations from the retrieved Amazon product details
Product Best for Pros Considerations
St Augustine Grass Fertilizer, Liquid Lawn Food for Thicker Growth, 32 oz Quick, deep green color and root growth in St. Augustine lawns Fast-absorbing liquid formula delivers quick results; Supports deep roots for heat and wear resistance Requires frequent reapplication for sustained effects
SeedRanch St. Augustine Lawn 24-2-11 Fertilizer – 50 Lbs. Large-scale residential lawn fertilization with iron greening Includes 6% Iron for excellent greening; Provides nutrients for up to 12,000 sq. ft. Granular form may require more careful application
Scotts EZ Patch Lawn Repair Mulch and Fertilizer for St. Augustine Grass, 3.75 lb (2 Pack) – Lawn Repair Mix Covers Up to 170 sq ft Lawn repair and establishing new patches Contains controlled release fertilizer; Absorbent mulch technology retains moisture Primarily for repair, not ongoing fertilization
Scotts Turf Builder Southern Lawn Food, 14.06 lbs. Lawn feeding during growing season for Southern lawns Builds strong, deep roots; Suitable for use in spring, summer, and fall Designed specifically for Southern grasses, verify for your type
Fertilome (13915) St. Augustine Weed & Feed 15-0-4, 12.8 lbs Weed control combined with fertilization for St. Augustine Controls weeds pre- and post-emergence; Contains 15-0-4 fertilizer blend Not recommended for Bermuda or Northern grasses
Scotts Florida Lawn Program (St. Augustine Grass) – Small Florida-specific lawn care program for small yards Covers 5,000 sq. ft., designed in Florida; Includes multiple products for year-round care Only available in Florida
Scotts Green Max Lawn Food, 16.67 lbs. Deep greening and quick revitalization on any grass type Feeds and supplements with iron; Acts within three days for greening Not sold in Florida; check compatibility
Yard Mastery 24-0-6 Flagship Granular Lawn Fertilizer with 3% Iron, Bio-Nite™, 45 lb Bag Covers 15,000 sq ft, 6% Potassium, Micronutrients and 24% Slow Release Nitrogen Grass Fertilizer for Lawn Care Large area fertilization with micronutrients and slow-release nitrogen Covers up to 15,000 sq. ft.; Includes micronutrients and Bio-Nite™ Granular application may require equipment
Scotts Turf Builder Rapid Grass Sun & Shade Mix, 2.4 lbs. Rapid overseeding for sun and shade lawns Speeds up grass growth up to 2x; Suitable for overseeding bare or thin areas Relies on seed success and proper care
Scotts Turf Builder Healthy Plus Lawn Food, 13.70 lbs. Lawn disease protection with systemic fungicide Controls 27 types of lawn diseases; Prevents and controls turf diseases Primarily for disease prevention, not standard fertilization

1. St Augustine Grass Fertilizer, Liquid Lawn Food for Thicker Growth, 32 oz

A liquid fertilizer formulated for rapid absorption, promoting deep green color and strong roots, suitable for boosting vitality in warm climates.

Table of Contents

St Augustine Grass Fertilizer, Liquid Lawn Food for Thicker Growth, 32 oz

Best for: Quick, deep green color and root growth in St. Augustine lawns
Pros: Fast-absorbing liquid formula delivers quick results; Supports deep roots for heat and wear resistance
Consideration: Requires frequent reapplication for sustained effects

View St Augustine Grass Fertilizer, Liquid Lawn Food for Thicker Growth, 32 oz on Amazon (affiliate link)

2. SeedRanch St. Augustine Lawn 24-2-11 Fertilizer – 50 Lbs.

Granular fertilizer providing balanced NPK with iron, ideal for large areas up to 12,000 sq. ft., supporting lush green color and nutrient levels specific to Florida lawns.

SeedRanch St. Augustine Lawn 24-2-11 Fertilizer - 50 Lbs.

Best for: Large-scale residential lawn fertilization with iron greening
Pros: Includes 6% Iron for excellent greening; Provides nutrients for up to 12,000 sq. ft.
Consideration: Granular form may require more careful application

View SeedRanch St. Augustine Lawn 24-2-11 Fertilizer – 50 Lbs. on Amazon (affiliate link)

3. Scotts EZ Patch Lawn Repair Mulch and Fertilizer for St. Augustine Grass, 3.75 lb (2 Pack) – Lawn Repair Mix Covers Up to 170 sq ft

A lawn repair mix with mulch, designed for bare or thin areas, supporting soil moisture retention and slow-release fertilization to establish healthy St. Augustine patches.

Scotts EZ Patch Lawn Repair Mulch and Fertilizer for St. Augustine Grass, 3.75 lb (2 Pack) – Lawn Repair Mix Covers Up to 170 sq ft

Best for: Lawn repair and establishing new patches
Pros: Contains controlled release fertilizer; Absorbent mulch technology retains moisture
Consideration: Primarily for repair, not ongoing fertilization

View Scotts EZ Patch Lawn Repair Mulch and Fertilizer for St. Augustine Grass, 3.75 lb (2 Pack) – Lawn Repair Mix Covers Up to 170 sq ft on Amazon (affiliate link)

4. Scotts Turf Builder Southern Lawn Food, 14.06 lbs.

A pesticide-free fertilizer formulated for Southern lawns, promoting strong roots and deep greens, with suitability for spring, summer, and fall applications.

Scotts Turf Builder Southern Lawn Food, 14.06 lbs.

Best for: Lawn feeding during growing season for Southern lawns
Pros: Builds strong, deep roots; Suitable for use in spring, summer, and fall
Consideration: Designed specifically for Southern grasses, verify for your type

View Scotts Turf Builder Southern Lawn Food, 14.06 lbs. on Amazon (affiliate link)

5. Fertilome (13915) St. Augustine Weed & Feed 15-0-4, 12.8 lbs

Herbicide and fertilizer combined product targeting weeds and feeding, suitable for early-season application on Centipede, Zoysia, and St. Augustine lawns.

Fertilome (13915) St. Augustine Weed & Feed 15-0-4, 12.8 lbs

Best for: Weed control combined with fertilization for St. Augustine
Pros: Controls weeds pre- and post-emergence; Contains 15-0-4 fertilizer blend
Consideration: Not recommended for Bermuda or Northern grasses

View Fertilome (13915) St. Augustine Weed & Feed 15-0-4, 12.8 lbs on Amazon (affiliate link)

6. Scotts Florida Lawn Program (St. Augustine Grass) – Small

A comprehensive four-season lawn care set tailored for Florida lawn types, including specific fertilizers and weed control for St. Augustine and others.

Scotts Florida Lawn Program (St. Augustine Grass) - Small

Best for: Florida-specific lawn care program for small yards
Pros: Covers 5,000 sq. ft., designed in Florida; Includes multiple products for year-round care
Consideration: Only available in Florida

View Scotts Florida Lawn Program (St. Augustine Grass) – Small on Amazon (affiliate link)

7. Scotts Green Max Lawn Food, 16.67 lbs.

A dual-action lawn food with iron encourages greening within days and supports diverse grass types, suitable for general lawn maintenance.

Scotts Green Max Lawn Food, 16.67 lbs.

Best for: Deep greening and quick revitalization on any grass type
Pros: Feeds and supplements with iron; Acts within three days for greening
Consideration: Not sold in Florida; check compatibility

View Scotts Green Max Lawn Food, 16.67 lbs. on Amazon (affiliate link)

8. Yard Mastery 24-0-6 Flagship Granular Lawn Fertilizer with 3% Iron, Bio-Nite™, 45 lb Bag Covers 15,000 sq ft, 6% Potassium, Micronutrients and 24% Slow Release Nitrogen Grass Fertilizer for Lawn Care

A comprehensive, large-bag fertilizer infused with iron and Bio-Nite™, offering slow-release nitrogen and micronutrients, ideal for extensive lawns and drought resistance.

Yard Mastery 24-0-6 Flagship Granular Lawn Fertilizer with 3% Iron, Bio-Nite™, 45 lb Bag Covers 15,000 sq ft, 6% Potassium, Micronutrients and 24% Slow Release Nitrogen Grass Fertilizer for Lawn Care

Best for: Large area fertilization with micronutrients and slow-release nitrogen
Pros: Covers up to 15,000 sq. ft.; Includes micronutrients and Bio-Nite™
Consideration: Granular application may require equipment

View Yard Mastery 24-0-6 Flagship Granular Lawn Fertilizer with 3% Iron, Bio-Nite™, 45 lb Bag Covers 15,000 sq ft, 6% Potassium, Micronutrients and 24% Slow Release Nitrogen Grass Fertilizer for Lawn Care on Amazon (affiliate link)

9. Scotts Turf Builder Rapid Grass Sun & Shade Mix, 2.4 lbs.

A seed mix with fertilizer designed to establish or overseed lawns quickly, promoting full, green coverage within weeks under suitable temperatures.

Scotts Turf Builder Rapid Grass Sun & Shade Mix, 2.4 lbs.

Best for: Rapid overseeding for sun and shade lawns
Pros: Speeds up grass growth up to 2x; Suitable for overseeding bare or thin areas
Consideration: Relies on seed success and proper care

View Scotts Turf Builder Rapid Grass Sun & Shade Mix, 2.4 lbs. on Amazon (affiliate link)

10. Scotts Turf Builder Healthy Plus Lawn Food, 13.70 lbs.

A fertilizer with systemic fungicide to prevent common lawn diseases while providing essential nutrients — beneficial during hot or stressful periods.

Scotts Turf Builder Healthy Plus Lawn Food, 13.70 lbs.

Best for: Lawn disease protection with systemic fungicide
Pros: Controls 27 types of lawn diseases; Prevents and controls turf diseases
Consideration: Primarily for disease prevention, not standard fertilization

View Scotts Turf Builder Healthy Plus Lawn Food, 13.70 lbs. on Amazon (affiliate link)

Best Fertilizer For St Augustine Grass In Florida Buying Guide

1. Choosing Between Liquid and Granular Fertilizers

Liquid fertilizers like the one formulated for rapid absorption can produce quick results and are easier to apply evenly. Granular formulas often provide longer-lasting nutrients and are suited for large areas. Consider your lawn size, desired application frequency, and preferences for quick greening versus sustained growth.

2. Nutrient Content and Special Additives

Look for fertilizers with balanced NPK ratios suitable for St. Augustine grass. Products with added iron promote vibrant greening, while those containing micronutrients or Bio-Nite™ improve overall soil health. Ensure the fertilizer’s formulation matches your lawn’s specific needs for heat tolerance, disease resistance, or repair.

Which Best Fertilizer For St Augustine Grass In Florida Should You Choose?

Balanced fertilizers featuring nutrients like nitrogen, potassium, and iron support healthy St. Augustine lawns in Florida. Liquid options provide rapid results, whereas granular fertilizers suit large areas with longer-term feeding. Consider special features such as disease control or overseeding capabilities to match your lawn’s particular requirements and conditions.

Frequently Asked Questions

1. What is the best fertilizer for greening St. Augustine grass quickly?

A fertilizer with quick-absorbing liquid formulation and added iron can promote rapid greening, often within a few days.

2. Should I choose granular or liquid fertilizer for my Florida lawn?

Granular fertilizers are ideal for long-lasting feeding over large areas, while liquids provide faster absorption and visible results.

3. How often should I fertilize my St. Augustine grass?

Typically, fertilizing every 6 to 8 weeks during the growing season supports healthy growth, but check product instructions.

4. Can I use a weed and feed product on my St. Augustine lawn?

Yes, but only select formulations designed for St. Augustine or similar warm-season grasses to avoid turf damage.

5. Is it necessary to add iron to my fertilizer?

Adding iron enhances greening and color; many Florida-specific products include it for optimal lawn appearance.

6. Are slow-release fertilizers better for Florida lawns?

They provide steady nutrients over time, reducing application frequency and supporting drought resistance in Florida climates.

7. Can I repair bare patches with lawn repair mixes?

Yes, specific mixes with mulch and controlled-release fertilizer support bare areas and promote new grass establishment.

Amelia Clark

I'm Amelia Clark , a seasoned florist and gardening specialist with more than 15 years of practical expertise. Following the completion of my formal education, I dedicated myself to a flourishing career in floristry, acquiring extensive understanding of diverse flower species and their ideal cultivation requirements. Additionally, I possess exceptional skills as a writer and public speaker, having successfully published numerous works and delivered engaging presentations at various local garden clubs and conferences. Check our Social media Profiles: Facebook Page, LinkedIn, Instagram Tumblr

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