The secret to a lush lawn in the Sunshine State is managing the nutrient release rate so your grass stays fed without burning in the heat. St Augustine requires a delicate balance of nitrogen and iron to combat our unique soil conditions.
Finding the Best Fertilizers for St Augustine Grass in Florida comes down to matching your soil needs with the right liquid or granular application. These four options provide different ways to maintain that deep green color all year.
Key Takeaways
- Prioritize formulas containing iron to help maintain a dark green color throughout the humid summer months.
- Choose liquid fertilizers if you need rapid absorption to address visible yellowing or nutrient deficiencies quickly.
- Select granular options like standard turf builders when you want slow release feeding that lasts for several weeks.
- Check the NPK ratio on the label to ensure your soil receives the right balance of nitrogen, phosphorus, and potassium.
- Match the package size to your total square footage to avoid buying too little for a full, consistent treatment.
| Best Overall Choice |  |
Liquid St. Augustine Grass Fertilizer | Promotes thicker grass density | Easy to mix liquid | Fast absorption into soil | View on Amazon | Read Review |
| Top Balanced Formula |  |
Simple Lawn Solutions 16-4-8 Fertilizer | Provides balanced nutrient supply | Ideal for summer growth | Consistent nitrogen delivery | View on Amazon | Read Review |
| Reliable Granular Classic |  |
Scotts Turf Builder Lawn Food | Long-lasting nutrient release | Simple spreader application | Trusted industry standard | View on Amazon | Read Review |
| Best Bulk Value |  |
Liquid St. Augustine Fertilizer Gallon | Large capacity for lawns | Efficient liquid application | Supports vigorous blade growth | View on Amazon | Read Review |
More Details on Our Top Picks
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Liquid St. Augustine Grass Fertilizer
If you want a straightforward solution for your St. Augustine lawn, this liquid concentrate is your go-to option. It is specifically formulated to promote thicker growth, which helps choke out weeds naturally.
Because it comes in a 32-ounce bottle, it is perfect for homeowners with smaller yards or those who prefer to keep their storage space uncluttered. You will need to account for the fact that a single bottle covers a smaller area compared to bulk sizes, so consider your lawn square footage before starting.
- Product Type:Liquid Fertilizer
- Weight Or Volume:32 Ounces
- Application Method:Hose-end sprayer
- Target Grass Type:St. Augustine
- Additional Feature:Ready to spray application
- Additional Feature:Designed for rapid absorption
- Additional Feature:Encourages green color depth
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Simple Lawn Solutions 16-4-8 Fertilizer
Think of this as a reliable multivitamin for your turf. The 16-4-8 NPK ratio provides a steady balance of nutrients that keeps your lawn functioning well through the challenging Florida heat.
This formula works well if your soil needs a general boost rather than a specialized treatment. But keep in mind that since it is a concentrated spray, you must follow the dilution instructions carefully to avoid burning the grass during the peak of summer.
- Brand Name:Simple Lawn Solutions
- Product Type:Liquid Fertilizer
- Weight Or Volume:32 Ounces
- NPK Ratio:16-4-8
- Application Method:Spray
- Target Grass Type:Any grass type
- Additional Feature:High nitrogen for vigor
- Additional Feature:Suitable for warm climates
- Additional Feature:Easy to dilute concentrate
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Scotts Turf Builder Lawn Food
Granular fertilizer acts like a slow-release battery, providing nutrition to your roots over several weeks. This specific blend is a household staple because it is incredibly simple to apply with a standard broadcast spreader.
It is a fantastic choice if you prefer walking your lawn once every few months instead of spraying liquid on a frequent basis. You should ensure you have a functioning spreader on hand, as you cannot apply this by hand without risking uneven growth patches.
- Brand Name:Scotts
- Product Type:Granular Fertilizer
- Weight Or Volume:12.5 Pounds
- Application Method:Broadcast spreader
- Target Grass Type:St. Augustine
- Additional Feature:Promotes deep root growth
- Additional Feature:Improves overall lawn health
- Additional Feature:Resists heat and drought
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Liquid St. Augustine Fertilizer Gallon
When you have a sprawling Florida lawn, buying in smaller quantities becomes a chore. This one-gallon size gives you enough concentrated formula to cover large areas without running to the store every weekend.
The liquid application is excellent for quick nutrient uptake through the blades of your grass. Just be aware that you will need a substantial hose-end sprayer to handle this volume effectively across a large property.
- Product Type:Liquid Fertilizer
- Weight Or Volume:1 Gallon
- Application Method:Hose-end sprayer
- Target Grass Type:St. Augustine
- Additional Feature:Covers large square footage
- Additional Feature:Economical bulk sizing
- Additional Feature:Promotes lush green color
