Best Fertilizers for St Augustine Grass in Spring for a Lush Green Lawn 2025

Choosing the best fertilizer for St Augustine grass in spring is essential for maintaining a healthy, vibrant lawn. St Augustine grass requires specific nutrients to thrive, especially after winter dormancy. Below is a summary table of the top fertilizers designed to nourish and promote robust growth of St Augustine grass during springtime.

Product Brand Key Features
Scotts Green Max Lawn Food Scotts Dual-action fertilizer with iron for deep greening in 3 days
Advanced 16-4-8 Balanced NPK Liquid Fertilizer Simple Lawn Solutions Complete NPK blend with seaweed & fish for all grass types
Fertilome St. Augustine Weed & Feed 15-0-4 ferti-lome Pre/post-emergent herbicide combined with suitable fertilizer
Scotts Turf Builder Southern Lawn Fertilizer Scotts Specially formulated for Southern lawns with root strengthening
Scotts Turf Builder Lawn Food Scotts Enhances root development and water/nutrient absorption

Scotts Green Max Lawn Food for Rapid Greening

Scotts Green Max Lawn Food

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Scotts Green Max Lawn Food is specifically designed to deliver quick results with a dual-action formula combining fertilizer and iron supplement. The fertilizer provides essential nutrients while the iron (5% content) enhances the greening process within just three days. This product is suitable for all grass types, including St Augustine, and can be applied during spring, summer, or fall seasons. It promotes rapid color enhancement and stronger grass health quickly, making it ideal for lawns coming out of dormancy. Its ease of use adds to the convenience for homeowners looking to revive their lawn in spring.

Advanced 16-4-8 Balanced NPK Liquid Fertilizer Spray

Advanced 16-4-8 Balanced NPK Liquid Fertilizer

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This Advanced 16-4-8 Balanced NPK Fertilizer from Simple Lawn Solutions offers a complete nutrient solution with an optimal 16-4-8 nitrogen, phosphate, and potash ratio. Enhanced with seaweed and fish extracts, it delivers natural micronutrients and boosts turf growth. The liquid spray formula ensures uniform application and quicker absorption, supporting even grass types like St Augustine. It’s easy to use, promoting lush green lawns throughout spring and summer by feeding roots and shoots effectively, offering a professional-grade alternative for lawn care enthusiasts.

Fertilome St. Augustine Weed & Feed 15-0-4 with Herbicide

Fertilome St Augustine Weed & Feed

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Fertilome’s St. Augustine Weed & Feed combines a selective herbicide with a 15-0-4 fertilizer, designed to control broadleaf weeds while nourishing St Augustine turf. It works as both a pre-emergent and post-emergent weed control, protecting grass from invasive plants in spring. Because it effectively targets weeds without harming St Augustine grass, it’s a useful choice for lawn owners looking to manage weed problems concurrently with fertilization. Note, it is not suitable for Bermuda or northern grass types, so correct identification is essential before application.

Scotts Turf Builder Southern Lawn Fertilizer for Southern Grass

Scotts Turf Builder Southern Lawn Fertilizer

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The Scotts Turf Builder Southern Lawn Fertilizer is formulated to meet the unique needs of southern grasses such as St Augustine. This fertilizer uses Scotts’ All-in-One particles that build strong, deep roots, helping grass withstand heat and drought during warmer months. It can be applied on both wet and dry lawns during the growing season, making it versatile and easy to use. This product focuses not only on growth but also on increasing the lawn’s resilience and overall health through balanced nutrient delivery ideal for Southern climates.

Scotts Turf Builder Lawn Food for All Grass Types

Scotts Turf Builder Lawn Food

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Scotts Turf Builder Lawn Food is a versatile fertilizer designed to feed and strengthen various grass types, including St Augustine. It enhances root development and improves the lawn’s ability to absorb water and nutrients, resulting in healthier and thicker grass. The fertilizer can be applied to both wet and dry lawns and supports long-term lawn health. Its balanced nutrient profile allows home gardeners to maintain green, durable turf throughout the spring growing period.

Buying Guide for Fertilizers for St Augustine Grass in Spring

Selecting the right fertilizer for St Augustine grass in the spring requires consideration of several important factors to ensure optimal lawn health and growth:

  • Nutrient Ratio (N-P-K): Look for fertilizers with a balanced or nitrogen-heavy NPK ratio, as nitrogen promotes green foliage and vigorous growth crucial in spring.
  • Iron Content: Iron supplements accelerate the greening of St Augustine grass, enhancing the lawn’s rich green color without excessive nitrogen.
  • Weed Control: Fertilizers combined with selective herbicides help combat weeds while feeding grass, simplifying lawn care during growth periods.
  • Formulation Type: Choose between granular products for slow, long-lasting feeding or liquid sprays for quick nutrient absorption depending on your lawn care routine.
  • Grass Type Compatibility: Confirm the fertilizer is safe and effective for St Augustine grass, as some formulations target other grass species which could cause damage.
  • Seasonal Use: Use fertilizers formulated for spring application to support turf coming out of dormancy, improve root structure, and prepare for summer heat.
  • Additional Nutrients: Products containing micronutrients and organic components like seaweed or fish extracts provide enhanced nourishment supporting overall lawn vitality.
  • Application Ease: Consider user-friendly options such as ready-to-use liquid sprays or granular products compatible with standard spreaders for uniform coverage.

Evaluating these factors in conjunction with your local climate and soil conditions will help in selecting the best fertilizer tailored for your St Augustine grass lawn’s spring rejuvenation.