10 Best Fertilizers for St Augustine in Texas 2026 (Buyer’s Guide)

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Written By Thomas James

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When it comes to growing lush, green St Augustine lawns in Texas, one thing stands out as more crucial than any other: choosing the right fertilizer. A poor choice can leave your lawn vulnerable to pests, diseases, and environmental stressors. But the right fertilizer can be the difference between a dull, patchy lawn and a vibrant, thriving oasis in the heart of Texas. Finding the Best Fertilizers for St Augustine in Texas can be a daunting task, with countless options vying for attention. But don't worry, I'm here to guide you through the process.

Key Takeaways

  • Look for fertilizers specifically formulated for St Augustine grass, as these will contain the right balance of nutrients for optimal growth.
  • Consider the size of the area you need to cover, as some fertilizers are designed for smaller or larger spaces.
  • Choose a fertilizer with a slow-release nitrogen formula, which will provide a steady supply of nutrients over time.
  • Avoid fertilizers with high phosphorus content, as these can harm the environment and cause water pollution.
  • Check the label for any insect control or weed control properties, which can be a bonus for a healthy lawn.

Our Top Best Fertilizers For St Augustine In Texas Picks

Top-Ranked Turf Treatment Sunniland St. Augustine Weed & Feed Sunniland St. Augustine Weed & Feed Convenient Weed Control Nutrient-Rich Formula Specifically Designed for St. Augustine Grass View on Amazon Read Review
Liquid Lawn Revival Advanced 16-4-8 Balanced Lawn Food Advanced 16-4-8 Balanced Lawn Food Flexible Application Options Balanced NPK Formula Easy to Use View on Amazon Read Review
Phosphorus-Free Turf Solution Sunniland St. Augustine Lawn Fertilizer Sunniland St. Augustine Lawn Fertilizer Phosphorus-Free Formula Slow-Release Fertilizer Easy to Apply View on Amazon Read Review
High-Iron Lawn Enhancer Fertilome Centipede Lawn Fertilizer Fertilome Centipede Lawn Fertilizer High-Iron Formula Slow-Release Fertilizer Easy to Apply View on Amazon Read Review
All-Grass Fertilizer Scotts Turf Builder Lawn Food Scotts Turf Builder Lawn Food Convenient Fertilizer Balanced NPK Formula Easy to Apply View on Amazon Read Review
Insect-Controlling Fertilizer Scotts Turf Builder SummerGuard Scotts Turf Builder SummerGuard Insect-Controlling Formula Balanced NPK Formula Easy to Apply View on Amazon Read Review
2-in-1 Fertilizer and Iron Supplement Scotts Liquid Green Max Scotts Liquid Green Max 2-in-1 Formula Balanced NPK Formula Easy to Apply View on Amazon Read Review
Fish-Based Lawn Food Superior 15-0-15 Liquid Lawn Fertilizer Superior 15-0-15 Liquid Lawn Fertilizer Fish-Based Formula Balanced NPK Formula Easy to Apply View on Amazon Read Review
High-Nitrogen Lawn Food SeedRanch St. Augustine Lawn Fertilizer SeedRanch St. Augustine Lawn Fertilizer High-Nitrogen Formula Balanced NPK Formula Easy to Apply View on Amazon Read Review
Quick-Release Lawn Food Spectracide Lawn Fertilizer Spectracide Lawn Fertilizer Quick-Release Formula Balanced NPK Formula Easy to Apply View on Amazon Read Review

More Details on Our Top Picks

  1. Sunniland St. Augustine Weed & Feed

    Sunniland St. Augustine Weed & Feed

    Top-Ranked Turf Treatment

    View on Amazon

    Sunniland's St. Augustine Weed & Feed is perfect for homeowners who want a hassle-free way to maintain their St. Augustine grass. This fertilizer is a one-stop-shop for weed control and nutrient delivery, making it a standout choice for busy homeowners. Its unique blend of ingredients ensures that your lawn gets the nutrients it needs to thrive.

    One of the biggest advantages of this fertilizer is its convenience. You can simply sprinkle it on your lawn and water it in, without having to worry about separate weed control products. Additionally, it's specifically designed for St. Augustine grass, which means it won't burn or damage your lawn like some other products might. However, it's worth noting that this fertilizer may not be as effective for lawns with heavy weed infestations.

    If you're looking for a simple, effective way to keep your St. Augustine grass healthy and weed-free, Sunniland's St. Augustine Weed & Feed is an excellent choice.

    • Additional Feature:Weed Control
    • Additional Feature:Phosphorus-Free
    • Additional Feature:Slow-Release Formula
  2. Advanced 16-4-8 Balanced Lawn Food

    Advanced 16-4-8 Balanced Lawn Food

    Liquid Lawn Revival

    View on Amazon

    If you're looking for a liquid fertilizer that can give your lawn a boost, Advanced 16-4-8 Balanced Lawn Food is a great option. This concentrated spray is perfect for lawns that need a little extra TLC, and it's easy to apply using the included sprayer. With its balanced NPK formula, you can trust that your lawn is getting the nutrients it needs to grow strong and healthy.

    One of the biggest advantages of this fertilizer is its flexibility. You can use it on any type of grass, and it's perfect for lawns that need a quick pick-me-up. Additionally, it's a great choice for homeowners who want to avoid granular fertilizers, which can be messy and difficult to apply. However, it's worth noting that this fertilizer may not be as effective for lawns with deep soil or heavy weed infestations.

    If you're looking for a liquid fertilizer that can give your lawn a boost, Advanced 16-4-8 Balanced Lawn Food is a great choice.

    • Additional Feature:Concentrated Spray
    • Additional Feature:Attached Sprayer
    • Additional Feature:Phosphorus-Free
  3. Sunniland St. Augustine Lawn Fertilizer

    Sunniland St. Augustine Lawn Fertilizer

    Phosphorus-Free Turf Solution

    View on Amazon

    Sunniland's St. Augustine Lawn Fertilizer is a great choice for homeowners who want to feed their St. Augustine grass without using phosphorus. This slow-release fertilizer is perfect for lawns that need a steady supply of nutrients, and it's easy to apply using the included spreader. With its phosphorus-free formula, you can trust that your lawn is getting the nutrients it needs to grow strong and healthy.

    One of the biggest advantages of this fertilizer is its slow-release formula. This means that your lawn will get a steady supply of nutrients over time, rather than a quick burst that may not be effective. Additionally, it's a great choice for homeowners who want to avoid granular fertilizers, which can be messy and difficult to apply. However, it's worth noting that this fertilizer may not be as effective for lawns with heavy weed infestations.

    If you're looking for a phosphorus-free fertilizer that can give your St. Augustine grass a boost, Sunniland's St. Augustine Lawn Fertilizer is a great choice.

    • Additional Feature:Slow-Release Formula
    • Additional Feature:Phosphorus-Free
    • Additional Feature:Turf Fertilizer
  4. Fertilome Centipede Lawn Fertilizer

    Fertilome Centipede Lawn Fertilizer

    High-Iron Lawn Enhancer

    View on Amazon

    Fertilome's Centipede Lawn Fertilizer is a great choice for homeowners who want to give their centipede grass a boost. This slow-release fertilizer is perfect for lawns that need a steady supply of nutrients, and it's easy to apply using the included spreader. With its high-iron formula, you can trust that your lawn is getting the nutrients it needs to grow strong and healthy.

    One of the biggest advantages of this fertilizer is its high-iron formula. This means that your lawn will get the extra nutrients it needs to grow strong and healthy, rather than just relying on nitrogen and potassium. Additionally, it's a great choice for homeowners who want to avoid granular fertilizers, which can be messy and difficult to apply. However, it's worth noting that this fertilizer may not be as effective for lawns with deep soil or heavy weed infestations.

    If you're looking for a high-iron fertilizer that can give your centipede grass a boost, Fertilome's Centipede Lawn Fertilizer is a great choice.

    • Additional Feature:High-Iron Formula
    • Additional Feature:Slow-Release Formula
    • Additional Feature:Turf Fertilizer
  5. Scotts Turf Builder Lawn Food

    Scotts Turf Builder Lawn Food

    All-Grass Fertilizer

    View on Amazon

    Scotts Turf Builder Lawn Food is a great choice for homeowners who want to feed their lawn without worrying about which type of grass they have. This fertilizer is perfect for lawns that need a steady supply of nutrients, and it's easy to apply using the included spreader. With its balanced NPK formula, you can trust that your lawn is getting the nutrients it needs to grow strong and healthy.

    One of the biggest advantages of this fertilizer is its convenience. You can simply sprinkle it on your lawn and water it in, without having to worry about separate weed control products. Additionally, it's a great choice for homeowners who want to avoid granular fertilizers, which can be messy and difficult to apply. However, it's worth noting that this fertilizer may not be as effective for lawns with heavy weed infestations.

    If you're looking for a fertilizer that can give your lawn a boost, Scotts Turf Builder Lawn Food is a great choice.

    • Additional Feature:Balanced NPK Formula
    • Additional Feature:Easy to Apply
    • Additional Feature:Weed Control
  6. Scotts Turf Builder SummerGuard

    Scotts Turf Builder SummerGuard

    Insect-Controlling Fertilizer

    View on Amazon

    Scotts Turf Builder SummerGuard is a great choice for homeowners who want to control insects on their lawn. This fertilizer is perfect for lawns that need a steady supply of nutrients, and it's easy to apply using the included spreader. With its insect-controlling formula, you can trust that your lawn is getting the nutrients it needs to grow strong and healthy, while also keeping pests at bay.

    One of the biggest advantages of this fertilizer is its insect-controlling formula. This means that your lawn will get the extra nutrients it needs to grow strong and healthy, while also keeping pests like white grubs and chinch bugs under control. Additionally, it's a great choice for homeowners who want to avoid separate insect control products, which can be messy and difficult to apply. However, it's worth noting that this fertilizer may not be as effective for lawns with heavy weed infestations.

    If you're looking for a fertilizer that can control insects on your lawn, Scotts Turf Builder SummerGuard is a great choice.

    • Additional Feature:Insect Control
    • Additional Feature:Balanced NPK Formula
    • Additional Feature:Weed Control
  7. Scotts Liquid Green Max

    Scotts Liquid Green Max

    2-in-1 Fertilizer and Iron Supplement

    View on Amazon

    Scotts Liquid Green Max is a great choice for homeowners who want to give their lawn a boost without worrying about separate fertilizers and iron supplements. This 2-in-1 formula is perfect for lawns that need a steady supply of nutrients, and it's easy to apply using the included sprayer. With its balanced NPK formula, you can trust that your lawn is getting the nutrients it needs to grow strong and healthy.

    One of the biggest advantages of this fertilizer is its 2-in-1 formula. This means that your lawn will get the extra nutrients it needs to grow strong and healthy, while also getting the iron it needs to stay healthy and green. Additionally, it's a great choice for homeowners who want to avoid granular fertilizers, which can be messy and difficult to apply. However, it's worth noting that this fertilizer may not be as effective for lawns with deep soil or heavy weed infestations.

    If you're looking for a 2-in-1 fertilizer and iron supplement, Scotts Liquid Green Max is a great choice.

    • Additional Feature:2-in-1 Formula
    • Additional Feature:Balanced NPK Formula
    • Additional Feature:Iron Supplement
  8. Superior 15-0-15 Liquid Lawn Fertilizer

    Superior 15-0-15 Liquid Lawn Fertilizer

    Fish-Based Lawn Food

    View on Amazon

    Superior 15-0-15 Liquid Lawn Fertilizer is a great choice for homeowners who want to give their lawn a boost using a fish-based fertilizer. This liquid fertilizer is perfect for lawns that need a steady supply of nutrients, and it's easy to apply using the included sprayer. With its balanced NPK formula, you can trust that your lawn is getting the nutrients it needs to grow strong and healthy.

    One of the biggest advantages of this fertilizer is its fish-based formula. This means that your lawn will get the extra nutrients it needs to grow strong and healthy, while also getting the added benefit of fish-based nutrients. Additionally, it's a great choice for homeowners who want to avoid granular fertilizers, which can be messy and difficult to apply. However, it's worth noting that this fertilizer may not be as effective for lawns with deep soil or heavy weed infestations.

    If you're looking for a fish-based fertilizer that can give your lawn a boost, Superior 15-0-15 Liquid Lawn Fertilizer is a great choice.

    • Additional Feature:Fish-Based Formula
    • Additional Feature:Balanced NPK Formula
    • Additional Feature:Humic Acid
  9. SeedRanch St. Augustine Lawn Fertilizer

    SeedRanch St. Augustine Lawn Fertilizer

    High-Nitrogen Lawn Food

    View on Amazon

    SeedRanch St. Augustine Lawn Fertilizer is a great choice for homeowners who want to give their St. Augustine grass a boost. This high-nitrogen fertilizer is perfect for lawns that need a steady supply of nutrients, and it's easy to apply using the included spreader. With its balanced NPK formula, you can trust that your lawn is getting the nutrients it needs to grow strong and healthy.

    One of the biggest advantages of this fertilizer is its high-nitrogen formula. This means that your lawn will get the extra nutrients it needs to grow strong and healthy, while also getting the added benefit of nitrogen-rich nutrients. Additionally, it's a great choice for homeowners who want to avoid granular fertilizers, which can be messy and difficult to apply. However, it's worth noting that this fertilizer may not be as effective for lawns with heavy weed infestations.

    If you're looking for a high-nitrogen fertilizer that can give your St. Augustine grass a boost, SeedRanch St. Augustine Lawn Fertilizer is a great choice.

    • Additional Feature:High-Nitrogen Formula
    • Additional Feature:Balanced NPK Formula
    • Additional Feature:Turf Fertilizer
  10. Spectracide Lawn Fertilizer

    Spectracide Lawn Fertilizer

    Quick-Release Lawn Food

    View on Amazon

    Spectracide Lawn Fertilizer is a great choice for homeowners who want to give their lawn a quick boost. This quick-release fertilizer is perfect for lawns that need a rapid supply of nutrients, and it's easy to apply using the included sprayer. With its balanced NPK formula, you can trust that your lawn is getting the nutrients it needs to grow strong and healthy.

    One of the biggest advantages of this fertilizer is its quick-release formula. This means that your lawn will get the extra nutrients it needs to grow strong and healthy, while also getting the added benefit of rapid nutrient delivery. Additionally, it's a great choice for homeowners who want to avoid granular fertilizers, which can be messy and difficult to apply. However, it's worth noting that this fertilizer may not be as effective for lawns with deep soil or heavy weed infestations.

    If you're looking for a quick-release fertilizer that can give your lawn a boost, Spectracide Lawn Fertilizer is a great choice.

    • Additional Feature:Quick-Release Formula
    • Additional Feature:Balanced NPK Formula
    • Additional Feature:Weed Control

Factors to Consider When Choosing Best Fertilizers For St Augustine In Texas

Fertilizer Type

When shopping for the best fertilizers for St. Augustine in Texas, one of the most critical factors to consider is the type of fertilizer. St. Augustine grass requires a balanced fertilizer that is rich in nitrogen, phosphorus, and potassium. Look for fertilizers that contain these three essential macronutrients in a ratio of 10-10-10 or 20-5-10. These numbers represent the percentage of nitrogen, phosphorus, and potassium in the fertilizer. Some popular types of fertilizers for St. Augustine include: * Slow-release fertilizers, which provide a steady supply of nutrients over a longer period * Quick-release fertilizers, which provide a rapid boost of nutrients but may need to be reapplied more frequently * Organic fertilizers, which are made from natural ingredients and can be a good option for those who prefer a more eco-friendly choice

Active Ingredients

Another important factor to consider is the active ingredients in the fertilizer. Look for products that contain micronutrients such as iron, magnesium, and sulfur, which can help to promote healthy growth and prevent deficiencies. Some fertilizers may also contain additional ingredients such as urea or ammonium sulfate, which can provide a quick boost of nitrogen. When choosing a fertilizer, be sure to read the label carefully and look for products that contain the right balance of active ingredients for your lawn.

Application Rate

To get the most out of your fertilizer, it's essential to apply it at the right rate. The application rate will depend on the type of fertilizer and the size of your lawn. As a general rule, apply 1 to 2 pounds of fertilizer per 1,000 square feet of lawn. Be sure to follow the instructions on the label carefully and take any necessary precautions to avoid over-fertilizing. It's also a good idea to apply fertilizer during the growing season, when your lawn is actively producing new growth.

pH Level

The pH level of your fertilizer can also play a significant role in its effectiveness. St. Augustine grass prefers a slightly acidic to neutral soil pH, ranging from 6.0 to 7.0. Look for fertilizers that are specifically formulated for use in acidic or neutral soils. If you're unsure about the pH level of your soil, consider having it tested by a local nursery or extension office.

Water Solubility

The water solubility of your fertilizer can also impact its effectiveness. Some fertilizers may be water-soluble, meaning they can be easily mixed with water and applied to the lawn. Others may be dry, requiring you to mix them with water before application. When choosing a fertilizer, consider the ease of use and the convenience of water-solubility.

Price and Value

Finally, consider the price and value of the fertilizer. While it's tempting to choose the cheapest option, be sure to consider the quality and effectiveness of the product. Look for fertilizers that offer good value for the price and provide a high level of performance. Some fertilizers may be more expensive than others, but they may also provide longer-lasting results and require less frequent reapplication.

Frequently Asked Questions

What is the best fertilizer for St. Augustine grass in Texas, and how do I apply it?

When it comes to fertilizing your St. Augustine grass in Texas, you'll want to focus on products that provide a balanced mix of nutrients. Look for fertilizers with a ratio of 10-10-10 N-P-K (nitrogen, phosphorus, and potassium) to promote healthy growth and development. Apply the fertilizer during the growing season, typically from late spring to early fall, and follow the recommended application rates to avoid over-fertilizing. Apply the fertilizer evenly across your lawn, working in a pattern to ensure you don't miss any spots. Be sure to water your lawn thoroughly after application to help the fertilizer penetrate the soil. For optimal results, consider getting your soil tested to determine the best fertilizer for your specific soil type and pH level.

I've heard that some fertilizers can damage my St. Augustine grass. What are the risks, and how can I avoid them?

Some fertilizers can indeed cause damage to your St. Augustine grass, particularly if you over-fertilize or use a product that's too strong. Nitrogen burn, for example, can occur when too much nitrogen is applied, causing yellowing or browning of the grass. To avoid these risks, always follow the recommended application rates and guidelines for your specific fertilizer. When choosing a fertilizer, opt for products that are specifically labeled as St. Augustine grass-friendly or slow-release. These types of fertilizers release nutrients gradually, reducing the risk of over-fertilization and associated damage.

Can I use a weed and feed product on my St. Augustine grass in Texas?

While it may be tempting to use a weed and feed product on your St. Augustine grass, it's not always the best option. Many of these products contain high levels of nitrogen, which can promote weed growth and create an imbalance in your lawn's nutrient profile. If you do choose to use a weed and feed product, make sure to select one that's specifically formulated for St. Augustine grass and follow the recommended application rates carefully. Consider using a separate product for weed control if you're concerned about the potential risks associated with weed and feed products.

How often should I fertilize my St. Augustine grass in Texas?

The frequency of fertilization for your St. Augustine grass in Texas will depend on your specific climate and soil type. In general, it's recommended to fertilize your lawn every 6-8 weeks during the growing season. However, if you live in an area with mild winters, you may be able to get away with fertilizing less frequently. It's always a good idea to consult with a local nursery or gardening expert to determine the best fertilization schedule for your specific lawn.

What are the benefits of using a slow-release fertilizer on my St. Augustine grass in Texas?

Slow-release fertilizers offer several benefits for St. Augustine grass in Texas, including reduced nitrogen burn and improved overall health. By releasing nutrients gradually, slow-release fertilizers promote steady growth and development, reducing the risk of over-fertilization and associated damage. Slow-release fertilizers also tend to be more cost-effective in the long run, as you'll need to apply them less frequently. Additionally, they can help reduce soil erosion and promote a more balanced nutrient profile in your lawn.

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