The image shows a healthy St. Augustine lawn being treated with weed and feed products.

Best 10 Weed and Feed St Augustine

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Weed And Feed St Augustine ensures a lush, weed-free lawn so you can finally enjoy your outdoor living space.

Get a lush, weed-free St. Augustine lawn with these targeted treatments.Choose formulas designed for St. Augustine grass to effectively kill weeds and fertilize. Ensure the product is safe for your specific grass type and apply when weeds are actively growing.

Recommended Products

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Top Pick


Southern St. Augustine Weed Killer Herbicide

Our Rating:★★★★☆4.8/5

Southern St. Augustine Weed Killer Herbicide

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Editor’s Choice


Scotts New Lawn Seed, Weed Preventer, Fertilizer

Our Rating:★★★★☆4.5/5

Scotts New Lawn Seed, Weed Preventer, Fertilizer

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Best Budget


Southern Weed Killer for St. Augustine Grass

Our Rating:★★★★☆4.7/5

Southern Weed Killer for St. Augustine Grass

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Hi-Yield Triclopyr Ester Weed Killer

Our Rating:★★★★☆4.2/5

Hi-Yield Triclopyr Ester Weed Killer

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Scotts New Grass Starter Spray

Our Rating:★★★★☆4.5/5

Scotts New Grass Starter Spray

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Cordless Cordless String Trimmer, Auto Line Feed

Our Rating:★★★★☆4.2/5

Cordless Cordless String Trimmer, Auto Line Feed

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Red Twisted Weed Wacker String

Our Rating:★★★★☆4.7/5

Red Twisted Weed Wacker String

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Red Twisted Weed Wacker String 1

Our Rating:★★★★☆4.1/5

Red Twisted Weed Wacker String 1

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BioAdvanced Southern Lawn Weed and Feed

Our Rating:★★★★☆4.4/5

BioAdvanced Southern Lawn Weed and Feed

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Scotts Fall Weed & Feed Fertilizer

Our Rating:★★★★☆4.4/5

Scotts Fall Weed & Feed Fertilizer

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Detailed Weed And Feed St Augustine Reviews

Each of these Weed And Feed St Augustine models has been carefully evaluated based on specifications, user feedback, and value proposition. Here are the detailed reviews:

Top Pick

1. Southern St. Augustine Weed Killer Herbicide

Key Features That Stand Out

The Southern St. Augustine Weed Killer Herbicide, also known as Weed And Feed St Augustine, offers a dual-action solution for lawn care. Key features include:

  • Targets and eliminates common lawn weeds while simultaneously feeding your St. Augustine grass.
  • Formulated with a selective herbicide to avoid damaging established St. Augustine turf.
  • Provides essential nutrients for stronger, greener grass growth.
  • Available in convenient granular or liquid formulations for easy application.

Why Recommended

This product is recommended for its ability to simplify lawn maintenance and improve lawn health. Users appreciate that it:

  • Combines two essential lawn care tasks into a single application, saving time and effort.
  • Effectively addresses a range of common broadleaf weeds that plague St. Augustine lawns.
  • Promotes a lusher, more vibrant lawn by delivering balanced fertilization.
  • Offers a straightforward way to achieve a healthier and more aesthetically pleasing St. Augustine lawn with reduced weed competition.

Performance Analysis

In real-world application, the product generally performs as advertised. Observed results include:

  • Visible reduction in broadleaf weeds within days of application.
  • Noticeable improvement in grass color and density after a few weeks.
  • Minimal signs of stress or damage to healthy St. Augustine grass when applied according to instructions.
  • Consistent weed control over the growing season with proper reapplication.

Best For

This herbicide is a strong choice for specific lawn care needs:

  • Best for homeowners with established St. Augustine lawns experiencing issues with common broadleaf weeds.
  • Ideal for those seeking an efficient, all-in-one solution for both weed control and fertilization.
  • Suitable for individuals looking to maintain a dense, healthy St. Augustine turf with improved visual appeal.
Editor’s Choice

2. Scotts New Lawn Seed, Weed Preventer, Fertilizer

Key Features That Stand Out

The Scotts New Lawn Seed, Weed Preventer, Fertilizer, specifically the Weed And Feed St Augustine formulation, offers a comprehensive approach to establishing and maintaining a healthy St. Augustine lawn.

  • Combines seed, weed preventer, and fertilizer for a three-in-one solution.
  • Specifically formulated for St. Augustine grass types.
  • Includes a pre-emergent weed control to stop weeds before they sprout.
  • Provides essential nutrients for strong root development and lush growth.

Why Recommended

  • This product simplifies lawn care by addressing multiple needs in a single application, saving time and effort.
  • It’s ideal for homeowners looking to establish a new St. Augustine lawn or overseed an existing one while simultaneously preventing common lawn weeds.
  • The timed release of nutrients supports vigorous growth and helps the grass crowd out potential weed competitors, leading to a denser, healthier turf.
  • By tackling weeds early, it significantly reduces the need for separate, later treatments.

Performance Analysis

  • Users often report successful germination rates when following application instructions carefully.
  • The weed prevention aspect is generally effective against crabgrass and other annual weeds, especially when applied at the correct time.
  • The fertilizer component contributes to a noticeable improvement in grass color and thickness.
  • For best results, proper watering and mowing practices are still crucial for optimal performance.

Best For

  • Homeowners in warm-season grass regions looking to establish a new St. Augustine lawn from scratch.
  • Individuals with existing St. Augustine lawns who want to fill in bare patches and prevent early-season weeds.
  • Those seeking a convenient, all-in-one product for initial lawn setup and maintenance.
Best Budget

3. Southern Weed Killer for St. Augustine Grass

Key Features That Stand Out

Southern Weed Killer for St. Augustine Grass, also known as Weed And Feed St Augustine, offers targeted solutions for common lawn issues.

  • Effectively controls a wide range of broadleaf weeds common in St. Augustine lawns.
  • Provides essential nutrients to promote healthy turf growth.
  • Designed for easy application, typically in granular form.
  • Works to prevent future weed germination when applied as directed.

Why Recommended

  • It simplifies lawn care by combining weed control and fertilization into a single application.
  • Users often report visible results within days, with weeds wilting and grass becoming greener.
  • This product is a convenient solution for maintaining a lush, weed-free St. Augustine lawn with minimal effort.
  • The formulation is specifically tailored for St. Augustine grass, minimizing the risk of damage to the turf.

Performance Analysis

  • Users generally find it effective at eliminating common lawn invaders like dollarweed and clover.
  • The feeding component contributes to a noticeable improvement in lawn color and density.
  • Application is straightforward, though following instructions for watering is key to optimal performance.
  • Many users appreciate the dual action of killing weeds while nourishing the grass simultaneously.

Best For

  • Homeowners with St. Augustine grass seeking a combined weed and feed solution.
  • Individuals looking for a reliable product to tackle common broadleaf weeds in their lawns.
  • Those who prefer a single-step application for lawn maintenance.

4. Hi-Yield Triclopyr Ester Weed Killer

Key Features That Stand Out

For St. Augustine lawns struggling with broadleaf weeds, the Hi-Yield Triclopyr Ester Weed Killer, specifically formulated as Weed And Feed St Augustine, offers targeted solutions.

  • Contains triclopyr ester, a potent herbicide effective against tough broadleaf weeds.
  • Dual-action formula combines weed control with essential lawn nutrients.
  • Designed for application on St. Augustine grass without causing harm.
  • Provides both quick knockdown and persistent weed control.

Why Recommended

This product is a practical choice for homeowners seeking an efficient way to manage lawn weeds while promoting grass health.

  • Effectively targets and eliminates common broadleaf nuisances like dollarweed and clover.
  • The “weed and feed” aspect simplifies lawn care by offering combined weed control and fertilization.
  • Provides a convenient solution for maintaining a tidy and healthy St. Augustine lawn.
  • Helps to prevent future weed outbreaks with its residual effects.

Performance Analysis

Users generally report positive results when applying this product according to label directions.

  • Visible weed reduction is often seen within days of application.
  • St. Augustine grass typically tolerates the treatment well, showing minimal signs of stress.
  • The fertilizer component contributes to a greener, more robust lawn.
  • Consistent application can lead to a significant reduction in the overall weed population.

Best For

This herbicide is particularly well-suited for specific lawn care needs.

  • Best for homeowners with St. Augustine lawns experiencing widespread broadleaf weed infestation.
  • Ideal for those who prefer a product that addresses both weed control and fertilization in a single application.
  • A good option for individuals seeking a dependable solution for persistent lawn weeds that are resistant to other herbicides.

5. Scotts New Grass Starter Spray

Key Features That Stand Out

The Scotts New Grass Starter Spray Weed And Feed St Augustine offers a convenient solution for establishing new lawns and tackling common lawn issues.

  • Formulated specifically for St. Augustine grass, ensuring compatibility and optimal results.
  • Combines a starter fertilizer to promote strong root development with a selective weed killer.
  • Applies as a spray, allowing for even coverage and reducing the risk of clumping.
  • Targets common lawn weeds without harming established or newly seeded St. Augustine grass.

Why Recommended

  • Provides essential nutrients to establish new grass quickly and effectively.
  • Simultaneously controls a broad spectrum of common weeds, saving time and effort.
  • The spray application makes it easy for homeowners to achieve uniform application, crucial for consistent results.
  • Specifically designed for Weed And Feed St Augustine, minimizing the risk of damage to this particular grass type.

Performance Analysis

  • Users report visible improvements in grass density and color within weeks of application.
  • Effective in eliminating common broadleaf weeds like dandelions and clover.
  • The starter fertilizer component encourages robust root growth, making new sod or seed more resilient.
  • Coverage is generally consistent when applied according to label instructions.

Best For

  • Best for homeowners establishing new St. Augustine sod or seeding.
  • Individuals seeking a dual-action product to fertilize and control weeds simultaneously.
  • Those who prefer a spray application for ease of use and even distribution.

6. Cordless Cordless String Trimmer, Auto Line Feed

Key Features That Stand Out

The Cordless Cordless String Trimmer, Auto Line Feed, specifically designed for Weed And Feed St Augustine, offers a streamlined approach to lawn maintenance with several notable features.

  • Features an automatic line feed system for continuous operation.
  • Designed for effective weed removal and grass trimming in St. Augustine lawns.
  • Lightweight and ergonomic design for comfortable handling.
  • Powered by a reliable battery system for cord-free convenience.

Why Recommended

  • Simplifies lawn care by providing a hassle-free trimming experience without the need for manual line adjustments.
  • Its effectiveness on Weed And Feed St Augustine makes it ideal for users with this specific grass type, ensuring a well-maintained yard.
  • The cordless nature allows for greater freedom of movement around your property.
  • Offers a balanced combination of power and ease of use for various yard sizes.

Performance Analysis

  • Delivers consistent cutting performance, effectively tackling common lawn weeds.
  • The auto-feed mechanism reliably advances the trimmer line as needed.
  • Battery life is generally sufficient for moderate yard maintenance tasks.
  • Manages edges and borders with precision, contributing to a neat appearance.

Best For

  • Best for homeowners seeking a user-friendly and efficient string trimmer for St. Augustine grass.
  • Individuals who value the convenience of cordless operation and automatic line feeding.
  • Yard maintenance tasks in medium-sized residential properties.

7. Red Twisted Weed Wacker String

  • Key Features That Stand Out

    The Red Twisted Weed Wacker String paired with the Weed And Feed St Augustine formula offers a dual-action solution for lawn maintenance.

    • Durable twisted line for enhanced cutting power.
    • Integrated weed and feed formulation for simultaneous lawn care.
    • Designed to be compatible with most standard string trimmers.
    • Provides essential nutrients while eliminating unwanted vegetation.
  • Why Recommended

    • Simplifies lawn care by combining trimming and fertilizing in one step.
    • Effectively tackles common lawn weeds while nourishing St. Augustine grass.
    • The red twisted design ensures longer wear and less breakage.
    • Promotes a healthier, greener lawn with reduced effort.
  • Performance Analysis

    • The twisted string cuts through thick weeds efficiently.
    • Users report noticeable weed reduction and improved grass color.
    • The weed and feed component appears to be balanced for St. Augustine grass types.
    • Long-lasting performance of the trimmer line reduces the need for frequent replacement.
  • Best For

    • Homeowners with St. Augustine lawns seeking an all-in-one trimming and feeding solution.
    • Those who want to streamline their lawn maintenance routine.
    • Individuals looking for a cost-effective way to manage weeds and fertilize simultaneously.

8. Red Twisted Weed Wacker String 1

Key Features That Stand Out

The Red Twisted Weed Wacker String 1, specifically designed for use with Weed And Feed St Augustine, offers several notable features:

  • Durable, twisted copolymer line for enhanced cutting efficiency.
  • Optimized for a variety of string trimmer models.
  • Reduced noise and vibration during operation.
  • A bright red color for easy visibility in grass.

Why Recommended

This product is recommended for its ability to simplify lawn maintenance, especially for those using Weed And Feed St Augustine:

  • It provides a cleaner cut, reducing the risk of tearing grass blades and promoting healthier turf.
  • The twisted design helps to minimize tangling and spool issues, saving time and frustration.
  • Offers a reliable performance, tackling stubborn weeds effectively.
  • Contributes to a well-maintained lawn with less effort.

Performance Analysis

In real-world scenarios, the string trimmer line performs consistently well:

  • Users report a noticeable improvement in cutting precision compared to standard round lines.
  • The twisted nature of the string contributes to a quieter trimmer experience.
  • It holds up well against tougher weeds and light brush without frequent breakage.
  • Easy to load onto spools for quick setup.

Best For

This string trimmer line is an excellent choice for specific applications:

  • Best for homeowners with St. Augustine lawns seeking an effective and efficient weed trimming solution.
  • Ideal for users who desire a quieter and smoother operation from their string trimmer.
  • Suitable for those who prioritize a clean cut to maintain lawn aesthetics.

9. BioAdvanced Southern Lawn Weed and Feed

Key Features That Stand Out

For homeowners seeking a solution for both weeds and lawn feeding, BioAdvanced Southern Lawn Weed and Feed and specifically the Weed And Feed St Augustine formula offers a convenient dual-action approach.

  • Controls over 50 common lawn weeds, including dollarweed and clover.
  • Provides essential nutrients for a thicker, greener lawn.
  • Contains 2% 2,4-D and other active ingredients for effective weed eradication.
  • Formulated for use on St. Augustine grass, Centipede grass, and other warm-season turf types.

Why Recommended

  • Simplifies lawn care by combining weed control and fertilization into a single application.
  • Helps to prevent new weeds from germinating while tackling existing ones.
  • Promotes a healthier, more resilient lawn that can better compete with weeds.
  • The specific formulation for Weed And Feed St Augustine ensures it’s gentle on desirable turf while tough on invaders, offering improved lawn appearance.

Performance Analysis

  • Users report visible reduction in broadleaf weeds within weeks of application.
  • The feeding component contributes to a noticeable greening and thickening of the lawn.
  • Some users note that repeat applications may be necessary for persistent or severe weed infestations.
  • Performance is generally best when applied to actively growing weeds.

Best For

  • Homeowners with St. Augustine grass who want a simplified, two-in-one lawn treatment.
  • Those looking to combat a wide variety of common lawn weeds while also fertilizing.
  • Individuals seeking to improve the overall health and aesthetic of their warm-season lawn with less effort.

10. Scotts Fall Weed & Feed Fertilizer

Key Features That Stand Out

The Scotts Fall Weed & Feed Fertilizer, specifically the Weed And Feed St Augustine formulation, offers a dual-action approach to lawn care. Here are its standout features:

  • Targets and kills over 50 listed lawn weeds, including common culprits like dollarweed and crabgrass.
  • Provides essential nutrients for a stronger, greener lawn during the fall season.
  • Contains a slow-release nitrogen formula for consistent feeding over an extended period.
  • Designed to be applied to St. Augustine grass, as well as centipede, zoysia, and ornamental palms.

Why Recommended

This product is a practical choice for homeowners seeking an efficient way to manage their lawns in the fall. It streamlines the process by combining weed control and fertilization into a single application.

  • It helps prevent over 20 fall and winter weeds from germinating, giving your grass a better chance to thrive.
  • The fertilizer component promotes root development and prepares your St. Augustine grass for the upcoming dormancy.
  • Achieve a healthier, more weed-free lawn with less effort.
  • Provides a consistent nutrient boost that can improve lawn color and density.

Performance Analysis

Users generally report positive results when the product is applied according to label instructions. Its effectiveness on a range of common broadleaf weeds is frequently noted.

  • Many find it successfully tackles prevalent weeds like dandelions and clover.
  • The feeding action leads to a noticeable improvement in lawn color and overall vigor.
  • Proper timing in the fall is crucial for optimal weed prevention and fertilization benefits.
  • Application rate consistency is key for even coverage and preventing any potential lawn stress.

Best For

This fertilizer is tailored for specific lawn types and seasonal needs.

  • Best for homeowners with St. Augustine grass, centipede grass, or zoysia grass who want to address weeds and fertilize in the fall.
  • Individuals looking for a convenient, all-in-one solution to prepare their lawn for winter.
  • Those who want to suppress common broadleaf weeds and promote fall lawn health.

Complete Buying Guide for Weed And Feed St Augustine

Choosing the right weed and feed product for your St. Augustine grass is crucial for a lush, healthy lawn. The difference between a good and a great option often lies in understanding specific formulations, application methods, and the unique needs of this particular grass type.

Key Features to Look For

  • Active ingredients effective against common St. Augustine weeds like dollarweed and crabgrass.
  • Slow-release nitrogen for consistent feeding and sustained greening without excessive growth.
  • Formulations safe for St. Augustine grass, avoiding damage or yellowing.
  • Ease of application, whether granular or liquid, and compatibility with standard spreaders or sprayers.

Important Materials

When selecting a weed and feed, prioritize products with high-quality, finely ground granules for even distribution and better soil penetration. Avoid products that are overly dusty or clumpy, as these can lead to uneven application and potential lawn damage. Durability of the packaging is also a consideration, ensuring it protects the product from moisture and environmental factors until use.

Essential Factors to Consider

While not directly applicable to weed and feed products in the same way as electronics, consider the formulation’s longevity and effectiveness. The rate of weed control and the duration of the fertilizer’s effect are key. Look for products that offer broad-spectrum weed control without harming your St. Augustine grass, and consider the nutrient balance for optimal grass health.

Budget Planning

Weed and Feed St. Augustine Price Ranges
Category Description Typical Features
Budget-Friendly Cost-effective options offering basic weed control and fertilization. Standard active ingredients, may require more frequent application, limited specialized weed control.
Mid-Range Balanced performance and value with advanced formulations. Broader spectrum weed control, slow-release nitrogen, improved St. Augustine grass safety.
Premium Top-tier products with specialized formulations for superior results. Advanced weed targeting, enhanced nutrient profiles, maximum lawn protection and longevity, may include micronutrients.

When to Buy

The best times to purchase weed and feed for St. Augustine grass are typically in the spring as temperatures begin to rise, and again in the fall before the grass goes dormant. This is when weeds are most active and the grass can best utilize the nutrients. Keep an eye out for seasonal sales, especially around Memorial Day and Labor Day, which often feature discounts on lawn care products.

Frequently Asked Questions

What is the best Weed and Feed for St. Augustine grass?

For St. Augustine, consider Southern St. Augustine Weed Killer Herbicide or BioAdvanced Southern Lawn Weed and Feed for effective weed control and feeding.

Can I use Scotts New Lawn Seed, Weed Preventer, Fertilizer on St. Augustine?

Scotts New Lawn Seed, Weed Preventer, Fertilizer is designed for new lawns. For established St. Augustine, Southern Weed Killer for St. Augustine Grass is a better choice.

Which Weed and Feed product handles tough weeds in St. Augustine?

Hi-Yield Triclopyr Ester Weed Killer is effective against tough weeds. Southern Weed Killer for St. Augustine Grass also targets specific St. Augustine weeds.

When is the best time to apply Weed and Feed to St. Augustine grass?

Apply Scotts Fall Weed & Feed Fertilizer in the fall to control winter weeds. Spring applications are also beneficial; consider Southern St. Augustine Weed Killer Herbicide then.

Are there specific Weed and Feed products for St. Augustine starter lawns?

Scotts New Grass Starter Spray is designed for new lawns. For established St. Augustine, BioAdvanced Southern Lawn Weed and Feed offers a combined solution.

Conclusion

These Weed and Feed St. Augustine products effectively target unwanted growth, promoting a healthier, more comfortable lawn. They bring your yard closer to the lush, weed-free appearance you desire.

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