9 Best Fertilizers for st Augustine Grass

St Augustine grass is a popular turfgrass choice in the southern United States, known for its lush green color and high tolerance for heat and humidity. However, like all plants, St Augustine grass requires proper nutrients to thrive.

In this article, we’ll discuss the best fertilizers for St Augustine grass to help keep your lawn looking healthy and vibrant.

Top 9 Best Fertilizers for St Augustine Grass

ImageProductFeaturesPrice
SeedRanch St. Augustine 24-2-11 Fertilizer

SeedRanch St. Augustine 24-2-11 Fertilizer

Nitrogen : 24 %
Phosphorus : 2 %
Potash : 11 %
Covered Area : 12,000 Sq.ft

$97.77
Scotts Turf Builder Triple Action Grass Food

Scotts Turf Builder Triple Action Grass Food

Nitrogen : 27 %
Phosphorus : 2 %
Potash : 10 %
Covered Area : 8,000 Sq.ft

$54.24
Pennington UltraGreen Lawn Fertilizer

Pennington UltraGreen Lawn Fertilizer

Nitrogen : 30 %
Phosphorus : 0 %
Potash : 4 %
Covered Area : 5,000 Sq.ft

$18.49
Scotts Turf Builder Southern Weed and Feed

Scotts Turf Builder Southern Weed and Feed

Nitrogen : 22%
Phosphorus : 08 %
Potash : 0.5 %
Covered Area : 5,000 Sq.ft

$33.98
LESCO St. Augustine Grass Weed and Feed

LESCO St. Augustine Grass Weed and Feed

Nitrogen : 17 %
Phosphorus : 0 %
Potash : 7 %
Covered Area :14,500 Sq.ft

$96.10
The Andersons Premium 20-27-5 Fertilizer

The Andersons Premium 20-27-5 Fertilizer

Nitrogen : 20 %
Phosphorus : 27 %
Potash : 5 %
Covered Area : 5,000 Sq.ft

$38.88
Advanced Lawn Food Liquid Lawn Fertilizer

Advanced Lawn Food Liquid Lawn Fertilizer

Nitrogen : 16 %
Phosphorus : 4 %
Potash : 8 %
Item Form : Liquid

$23.77
Southern Ag Power Water Soluble Fertilizer

Southern Ag Power Water Soluble Fertilizer

Nitrogen : 20 %
Phosphorus : 20 %
Potash : 20 %
Item Form : Granules

$26.39
Super Juice Supplement Lawn Fertilizer

Super Juice Supplement Lawn Fertilizer

Nitrogen : 14 %
Phosphorus : 2 %
Potash : 4 %
Item Form : Granular

$98.88

1. Best Fertilizers for st Augustine Grass

SeedRanch St. Augustine 24-2-11 Fertilizer

  • Brand : Lesco
  • Nitrogen : 24 %
  • Phosphorus : 2 %
  • Potash : 11 %
  • Covered Area : 12,000 Sq.ft
  • Item Weight : 50 Lbs.

Transform your St. Augustine lawn into a lush and vibrant oasis with SeedRanch St. Augustine Lawn 24-2-11 Fertilizer. Infused with a potent blend of nutrients expertly formulated for St. Augustine grass, this top of the line fertilizer is the ultimate choice for lawn care aficionados who demand only the best.

Experience the awe-inspiring beauty of a lawn that is the envy of the neighborhood, and take pride in knowing that you have the secret weapon to achieve and maintain it!

One of the key benefits of SeedRanch St. Augustine Lawn Fertilizer is its ability to promote healthy, green growth in St. Augustine lawn. With 6% iron included in the formula, this fertilizer is particularly effective at greening up southern lawns when the outside temperatures are cool.

It’s the perfect choice for jumpstarting the greening process in the spring, helping to ensure that your lawn looks its best all season long.

With 50 lbs of fertilizer included in each bag, you’ll have plenty of coverage to treat up to 12,000 sq. ft. of lawn, making it an ideal choice for homeowners with larger properties or those looking to maintain multiple lawns.

And because this fertilizer is formulated specifically for St. Augustine grass, you can rest assured that you’re providing your lawn with the nutrients it needs to stay healthy and lush.

So why wait? If you’re looking for a high-quality fertilizer that will help your St. Augustine lawn thrive, look no further than SeedRanch St. Augustine Lawn 24-2-11 Fertilizer. With its powerful blend of nutrients and excellent coverage, it’s the perfect choice for any lawn care enthusiast. Order now and see the difference for yourself!

2. Best Fertilizer for St Augustine Grass in California

Scotts Turf Builder Triple Action Grass Food

  • Brand : Scotts Turf Builder
  • Nitrogen : 27 %
  • Phosphorus : 2 %
  • Potash : 10 %
  • Covered Area : 8,000 Sq.ft
  • Item Weight : 32 Lbs.

Looking for the best fertilizer for your St. Augustine grass in California? Look no further than the Scotts Turf Builder Triple Action and Scotts Green Max Lawn Food Bundle for Small Southern Lawns. This powerful combination of lawn care products is specifically designed to protect against the unique stresses of Southern lawns while also providing essential nutrients for healthy growth.

One of the key benefits of the Scotts Turf Builder Triple Action is its ability to protect against fire ants for up to 6 months. This innovative 3-in-1 formula also kills stubborn weeds like dollarweed and clover, while strengthening your lawn against the heat and drought that are common in Southern regions. With this powerful fertilizer, you can ensure that your St. Augustine grass stays healthy and vibrant all year long.

To complement the Scotts Turf Builder Triple Action, the bundle also includes Scotts Green Max Lawn Food. With 5% iron included in the formula, this lawn food is specifically designed to enhance the greening process, producing results in just three days. This means that you’ll be able to enjoy a deep, lush green lawn in no time.

The Scotts Turf Builder Triple Action and Scotts Green Max Lawn Food Bundle is suitable for use on a variety of Southern grasses, including St. Augustine (including Floratam), Carpetgrass, Centipedegrass, and Zoysiagrass. And with easy application using a Scotts broadcast/rotary or drop spreader, you can ensure even coverage across your entire lawn.

So why wait? If you’re looking for the best fertilizer for your St. Augustine grass in California, look no further than the Scotts Turf Builder Triple Action and Scotts Green Max Lawn Food Bundle for Small Southern Lawns. With its powerful blend of nutrients and protection against unique Southern stresses, it’s the perfect choice for any lawn care enthusiast. Order now and see the difference for yourself!

3. Best Fertilizer for St Augustine Grass in Spring 

Pennington UltraGreen Lawn Fertilizer

  • Brand : Pennington
  • Nitrogen : 30 %
  • Phosphorus : 0 %
  • Potash : 4 %
  • Covered Area :5,000 Sq.ft
  • Item Weight : 14 Lbs.

Looking for the best fertilizer for your St. Augustine grass in the spring? Look no further than the Pennington UltraGreen Lawn Fertilizer. This premium blend of essential plant nutrients is designed to give you the thick, lush, deep green lawn that you desire.

One of the key benefits of this fertilizer is its ability to strengthen your lawn against the heat and drought that are common during the spring and summer months. With its 10.5% slow release nitrogen, the Pennington UltraGreen Lawn Fertilizer provides extended feeding for up to 3 months. This means that your lawn will stay healthy and vibrant throughout the season.

In addition to its slow release nitrogen, this fertilizer also contains 5% iron for a deep, dark green lawn. And with fast acting nitrogen included in the formula, you’ll see quick greening results in no time.

The Pennington UltraGreen Lawn Fertilizer is suitable for use on all lawns, including St. Augustine grass. And with its resealable packaging, you can keep it fresh and ready to use for future applications.

To get the best results from this fertilizer, apply it between June and August. And with coverage of up to 5000 square feet, you can be sure that your entire lawn will receive the essential nutrients it needs for optimal growth and health.

So if you’re looking for the best fertilizer for your St. Augustine grass in the spring, look no further than the Pennington UltraGreen Lawn Fertilizer. With its premium blend of nutrients, quick greening, and extended feeding, it’s the perfect choice for any lawn care enthusiast. Order now and enjoy the lush, deep green lawn you deserve!

4. Best Fertilizer for St Augustine Grass in Florida

Scotts Turf Builder Southern Weed and Feed

  • Brand : Scotts
  • Nitrogen : 22%
  • Phosphorus : 08 %
  • Potash : 0.5 %
  • Covered Area :5,000 Sq.ft
  • Item Weight : 17.24 lbs

If you’re looking for a fertilizer to keep your St. Augustine grass healthy and weed-free in Florida, look no further than Scotts Turf Builder Bonus S Southern Weed & Feed. This fertilizer not only feeds your lawn to promote lush, green growth, but also kills existing weeds such as dollarweed and clover.

Scotts Turf Builder Bonus S Southern Weed & Feedis specially designed for use on southern grasses, including St. Augustinegrass (including Floratam), Centipedegrass, Zoysiagrass, and Carpetgrass. By providing your lawn with the essential nutrients it needs to thrive, this fertilizer helps to build thick, green turf that can crowd out future weeds.

With coverage of up to 5,000 sq. ft., Scotts Turf Builder Bonus S Southern Weed & Feed is easy to apply using a Scotts Broadcast/Rotary spreader or a Scotts Drop spreader. Regular feedings with this fertilizer will provide your lawn with the nutrients it needs to withstand the stresses of heat, drought, and family activity.

Not only does Scotts Turf Builder Bonus S Southern Weed & Feed kill existing weeds and promote healthy growth, but it also helps to prevent runoff by building thick, green turf. So if you want a weed-free, lush, green lawn in Florida, use Scotts Turf Builder Bonus S Southern Weed & Feed. Apply in the spring or fall for best results.

5. Best Weed and Feed Fertilizer for St Augustine Grass

LESCO St. Augustine Grass Weed and Feed

  • Brand : Lesco
  • Nitrogen : 17 %
  • Phosphorus : 0 %
  • Potash : 7 %
  • Covered Area :14,500 Sq.ft
  • Item Weight : 17.24 lbs

LESCO 50 lb. St. Augustine Grass Weed and Feed with Penoxsulam is a professional-grade fertilizer that is specially formulated for St. Augustine grass. It contains 30% poly-coated sulfur-coated urea, which provides slow-release feeding for up to 8 weeks. This fertilizer should be applied when the turf is wet and allowed to dry, with visible results in 2 weeks.

This weed and feed fertilizer is safe for use on Floratam variety of St. Augustine grass and is designed to eliminate common weeds such as dollarweed, clover, and other listed weeds. It has a 17-0-17 nutrient balance that promotes healthy growth and thick green turf. This 50 lb. bag can cover up to 13,000 sq. ft.

The LESCO St. Augustine Grass Weed and Feed with Penoxsulam is very easy to use, and it provides excellent results for a lush and weed-free lawn. It is recommended to use a spreader to apply this fertilizer evenly on the lawn.

6. Best Fertilizer for St Augustine Grass in Texas

The Andersons Premium 20-27-5 Fertilizer

  • Brand : The Andersons
  • Nitrogen : 20 %
  • Phosphorus : 27 %
  • Potash : 5 %
  • Covered Area :5,000 Sq.ft
  • Item Weight : 18 lbs

The Andersons Premium New Lawn Starter 20-27-5 Fertilizer is an excellent choice for St. Augustine grass in Texas. It is specifically designed for new sod areas, newly seeded areas, and vigorous grass. This fertilizer provides an optimal supply of nitrogen, phosphorus, potassium, and essential micro-nutrients to encourage vigorous seedling and root establishment.

The formula contains three types of nitrogen – fast, intermediate, and slow reacting – to provide quick response and steady feeding of nitrogen, promoting top growth of the grass and producing a deep green color.

Additionally, it contains sulfur to maintain the dark green color and encourage more vigorous plant and root growth. Phosphate is essential in the development of deep, strong roots, and potash thickens the wall structure of the grass and makes it more vigorous.

This fertilizer also includes 1% iron, which aids in the development of chlorophyll in grass and prevents yellowing while encouraging deep greening. The formula is safe for use on any grass type, and it can be applied during any part of the growing stage, but it is most ideal for applications that include grass planting, overseeding, or installing sod.

Overall, The Andersons Premium New Lawn Starter 20-27-5 Fertilizer is an excellent choice for anyone looking to establish a lush, healthy lawn of St. Augustine grass in Texas.

7. Best Liquid Fertilizer for St Augustine Grass

Advanced Lawn Food Liquid Lawn Fertilizer

  • Brand : Simple Lawn Solutions
  • Nitrogen : 16 %
  • Phosphorus : 4 %
  • Potash : 8 %
  • Item Form : Liquid
  • Item Weight : 3 lbs

The Advanced 16-4-8 Balanced NPK – Lawn Food Quality Liquid Fertilizer is a high-quality option for fertilizing St. Augustine grass. It contains a perfect blend of key macronutrients, including 16% nitrogen, 4% phosphorus, and 8% potassium, which are essential for the development of a healthy and attractive lawn.

The nitrogen component encourages vigorous growth and provides a dense lawn, while the phosphorus enhances root development and plant growth in the early stages. The potassium improves plant tolerance to extreme temperatures and drought while regulating water and nutrients.

This liquid fertilizer is suitable for all grass types, including Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Florida Palmetto, Bahia, Fescue, Ryegrass & Kentucky Bluegrass. It also contains seaweed and fish emulsion, which provides organic matter to soil for optimal nutrient uptake.

This easy-to-use liquid fertilizer is ready to be sprayed and is produced in the United States by a family-owned business with 25 years of experience in the commercial professional turf industry. It is perfect for maintaining and feeding your lawn, enhancing its green color, boosting vertical and lateral growth, and correcting any macronutrient deficiencies in the soil.

8. Best Fertilizer for Yellow St Augustine Grass

Southern Ag Power Water Soluble Fertilizer

  • Brand : Southern Ag
  • Nitrogen : 20 %
  • Phosphorus : 20 %
  • Potash : 20 %
  • Item Form : Granules
  • Item Weight : 5 lbs

Southern Ag PowerPak 20-20-20 Water Soluble Fertilizer is a great option for yellow St. Augustine grass as it contains a balanced blend of essential macronutrients and micronutrients. The 20-20-20 ratio of nitrogen, phosphorus, and potassium ensures that the grass receives the right amount of nutrients to grow strong and healthy.

In addition to the macronutrients, this fertilizer also contains chelated minor elements which are essential for healthy plant growth. Chelated minor elements are minerals that have been bound to organic compounds, making them more available to the plant for absorption. This helps ensure that the grass receives a well-rounded dose of nutrients.

Southern Ag 20-20-20 Soluble Fertilizer is also easy to apply, as it can be mixed with water and applied to the lawn or garden. This makes it a convenient option for homeowners who want to maintain healthy and vibrant grass without having to hire a professional.

Overall, Southern Ag PowerPak 20-20-20 Water Soluble Fertilizer is a great choice for yellow St. Augustine grass, as it provides the necessary nutrients for healthy growth and is easy to apply.

9. Overall Good Fertilizer For St Augustine Grass

Super Juice Supplement Lawn Fertilizer

  • Brand : The Andersons
  • Nitrogen : 14 %
  • Phosphorus : 2 %
  • Potash : 4 %
  • Item Form : Granular
  • Item Weight : 13.6 lbs

Super Juice All-in-One Soluble Supplement Lawn Fertilizer is a highly recommended fertilizer for St. Augustine grass. Its new improved formula contains 4% iron and micro nutrients, including humic acid, which helps to enhance the overall health of the lawn.

This fertilizer comes in a dry mix that is easy to use. Simply add it to water and apply it to your lawn using a hose-end sprayer. The recommended application ratio is 14-2-4 for a full acre of lawn or 7-1-2 for half strength, treating two full acres. This means that one bag of Super Juice can treat an entire acre or 43,560 sq ft of lawn at full concentration.

What sets Super Juice apart from other fertilizers is that it is an all-in-one complete lawn fertilizer. It contains all the necessary nutrients that your lawn needs in a single blend. This allows you to treat every blade of grass with a mild dosage of nutrients. Additionally, the nutrients in Super Juice are easily absorbed into the grass through foliar uptake in as little as 1-4 hours.

Why Is Fertilizer Important for St Augustine Grass?

Before we dive into the best fertilizers for St Augustine grass, let’s first understand why fertilizer is important. Fertilizer provides essential nutrients that grass needs to grow and maintain healthy roots, stems, and leaves.

It also helps to improve soil quality and increase resistance to diseases, pests, and environmental stresses. Without proper fertilization, St Augustine grass may become thin, yellow, and prone to pests and diseases.

What to Look for in a St Augustine Grass Fertilizer

When choosing a fertilizer for your St Augustine grass, it’s important to consider the following factors:

  • Nutrient Balance: St Augustine grass requires a balanced mix of nitrogen, phosphorus, and potassium (NPK) for optimal growth.
  • Slow-Release Formula: A slow-release fertilizer will provide nutrients to your grass over time, preventing excessive growth and reducing the risk of nutrient runoff.
  • Organic vs. Synthetic: Organic fertilizers are made from natural sources, such as compost or animal waste, while synthetic fertilizers are made from chemicals. Organic fertilizers are typically more environmentally friendly but may be less effective than synthetic fertilizers in some cases.
  • Granular vs. Liquid: Granular fertilizers are easier to apply but may take longer to take effect, while liquid fertilizers can provide quick results but require more frequent application.

Conclusion

St Augustine grass is a popular turfgrass choice for its lush green color and tolerance to heat and humidity. However, to maintain a healthy and vibrant lawn, proper fertilization is essential. Choosing the right fertilizer for your St Augustine grass and applying it properly can help improve soil quality, increase resistance to pests and diseases, and promote optimal growth.

FAQs

When should I fertilize my St. Audatine Grass?

The best time to fertilize St. Augustine grass is in the spring and fall, when temperatures are moderate. Fertilizing in the summer months can be damaging to your grass because of the high temperatures and increased risk of disease.

Is 16 4 8 is good for St. Augustine Grass?

Yes, 16-4-8 is a great fertilizer for St. Augustine grass. This type of fertilizer contains the three essential nutrients for healthy grass growth: nitrogen, phosphorus, and potassium.

Can you fertilize Augustine Grass in Fall?

Yes, you can fertilize Augustine grass in the fall. This type of grass grows best when it is fertilized twice a year, once in the spring and once in the fall.

Can you put too much fertilizer on St.Austine Grass?

It is not recommended to put too much fertilizer on St. Augustine Grass. Too much fertilizer can damage the grass and even kill it.

Can you put 10 10 10 on St. Augustine grass?

Yes, you can put 10 10 10 fertilizer on St. Augustine grass.

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