If you’re looking for a lush and vibrant lawn, fertilizing your St. Augustine grass is a must. But when it comes to selecting the best fertilizer for yellow St. Augustine grass, it can be overwhelming to choose from so many options available in the market.
There are several factors that readers need to consider before purchasing a fertilizer. Firstly, it is important to know the soil type and pH level of your grass. Secondly, consider the climate and weather conditions as it can affect the effectiveness of the fertilizer. Thirdly, check the nutrient ratio of the fertilizer, specifically the amount of nitrogen, phosphorus, and potassium present in it.
Are you tired of your St. Augustine grass looking dull and yellow? Do you want to know how to maintain a healthier and greener lawn? Then, keep reading to discover the best fertilizer for yellow St. Augustine grass. Are you wondering if synthetic fertilizers are better than organic ones? Or maybe, you want to know how often you should fertilize your lawn? Learn the answers to these questions and more in this article. With our expert tips, your lawn will look its very best in no time!
10 Best Fertilizer For Yellow St Augustine Grass
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This product is ideal for fertilizing lawns with a concentrated liquid spray that covers up to 5,000 sq. ft.
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2
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This natural lawn fertilizer is ideal for feeding up to 5,000 sq ft of grass without causing burning.
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3
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This product bundle is ideal for fertilizing and nourishing lawns to promote healthy growth and greenery.
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4
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This product is ideal for fertilizing and nourishing lawns, promoting green grass growth and aiding in lawn repair.
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5
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The product is ideal for repairing damaged St. Augustine lawns without the need for grass seeds, covering up to 85 sq. ft.
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6
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This liquid fertilizer is ideal for promoting green growth and providing essential nutrients to any type of grass.
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7
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This fertilizer is ideal for St. Augustine grass as it contains nutrients specific to its needs.
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8
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This fertilizer spray is designed for spring and summer use on any type of grass to promote maximum green growth.
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9
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The product is ideal for feeding and maintaining a healthy lawn during the summer season.
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10
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The product is ideal for promoting healthy grass growth and providing nutrition to lawns.
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1. Organic Liquid Lawn Food, Covers 5,000 Sq. Ft.

The pre-calibrated hose-end spray bottle is a game-changer for anyone who wants to make lawn maintenance a breeze. This product is designed to make application easy and convenient, so you can achieve a beautiful lawn without any hassle.
The effective plant-based formula is a standout feature of this product. It begins feeding your soil and lawn immediately, without the use of any smelly manure or biosolids. This is a great option for those who want to avoid harsh chemicals and prefer a more natural approach to lawn care.
The formula is specially designed to promote strong roots, thick turf, and a rich, green lawn. It provides essential nutrients for a healthy lawn, including 13% Nitrogen, 0% Phosphorus, and 4% Potassium. This is a well-balanced blend of nutrients that will not burn your lawn, ensuring smart nutrition without any harsh chemicals.
2. Natural Lawn Fertilizer For Safer Greens

Transform your lawn into a lush and healthy green space with this lawn revitalizer. Designed to strengthen root systems, this formula promotes a thick and thriving turf. The results are fast-acting, with lawns starting to green up within just 3 to 5 days of application.
Unlike other lawn treatments that may burn your grass or deplete the soil of nutrients, this non-burning formula promotes soil vitality for a thicker, healthier lawn. It also helps plants withstand various stresses, including heat, cold, and drought, providing effective year-round care.
This lawn revitalizer is made from naturally derived ingredients, making it safe for your children and pets to play on immediately after application when used as directed. Each bag provides coverage of up to 5,000 square feet and contains all the necessary nutrients to bring your lawn back to life.
Don't settle for a lackluster lawn any longer. With this lawn revitalizer, you can enjoy a beautiful and healthy green space that will be the envy of your neighbors.
3. 15-0-15 32 Ounce And 15-0-15 1 Gallon Bundle – Liquid Lawn Food Fertilizer – Simple Lawn Solutions

The 15-0-15 Phosphorus-free Liquid Lawn Food Nutritional Supplement is a top-notch fertilizer that is designed to help maintain your lawn's vigor and address Nitrogen & Potassium deficiencies. Whether you are a lawn enthusiast or a professional landscaper, this fertilizer is an incredible choice for you.
The product boasts a powerful blend of Nitrogen & Potassium that is enhanced with Humic Acid. This combination intensifies green and growth, while providing key nutrients for health and strength. Humic Acid conditions soil and helps the transfer of food throughout the plant cell. As a result, your lawn will look healthier and more vibrant than ever before.
What's more, the 15-0-15 Phosphorus-free Liquid Lawn Food Nutritional Supplement is made with high-quality feed-grade ingredients. This ensures that your lawn is nourished with pure liquid nutrients that are quickly and easily absorbed.
One of the best things about this fertilizer is that it can be used on all grass types, including Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Palmetto & Bluegrass. This makes it a versatile option that can cater to all your lawn needs.
It's worth noting that the 15-0-15 Phosphorus-free Liquid Lawn Food Nutritional Supplement is produced in the United States of America. This means that you can trust its quality and reliability. The product is manufactured by a family-owned business with 25 years of former experience in the commercial professional turf industry.
4. Petratools Green Lawn Formula: 15-0-15 Fertilizer.

PetraTools offers a superior solution for healthy grass growth with their 15-0-15 fertilizer. This liquid fertilizer is specially formulated to promote vibrant grass and healthy soil without the negative effects of phosphorus. The use of nitrogen and potassium, along with humic acid, ensures that your lawn receives the essential nutrients it needs to thrive.
This lawn food is suitable for all grass types, including bluegrass, palmetto, centipede, buffalo, zoysia, St. Augustine, or Bermuda grass. Its high-quality feed-grade ingredients work together to nurture the grass, providing optimum growth and health. Whether your lawn is in need of a boost or you just want to maintain its healthy appearance, PetraTools liquid fertilizer can help.
In addition, PetraTools commercial fertilizer is designed to be compatible with most fertilizers on the market. This makes it easy to use in conjunction with other lawn care products, ensuring maximum effectiveness. To prevent spillage and mess, it is recommended to use PetraTools sprayers, which have a wide-mouth opening.
PetraTools is an American family-owned company located in Carlisle, Pennsylvania. They take pride in offering top-quality solutions for keeping your home, lawn, and places of business clean, green, and safe. All PetraTools products come with a 100% satisfaction guarantee, and their USA-based customer service team is always ready to answer any questions you may have.
5. St. Augustine Lawn Repair – Ez & Effective!

Scotts EZ Patch Lawn Repair for St. Augustine Lawns is the perfect solution for those looking to repair their lawns in a quick and efficient manner. This combination mulch and fertilizer is designed to repair St. Augustinegrass 60% faster than untreated lawns, with visible results as soon as 15 days after application (results may vary).
The mulch component of this product is specially designed to absorb up to 6x its weight in water, creating a moist and protective layer around the seed. This helps to promote healthy growth and establishment of St. Augustinegrass, ensuring a lush and beautiful lawn.
The fertilizer component of this product features an exclusive controlled release technology that feeds the grass over time, ensuring that it receives all the necessary nutrients to thrive. This technology helps to promote healthy growth and establishment, resulting in a lawn that is both beautiful and healthy.
Scotts EZ Patch Lawn Repair for St. Augustine Lawns comes ready-to-use, with enough product to cover up to 85 sq. ft. of lawn. This makes it a quick and easy solution for those looking to repair their lawns without having to spend hours on end doing so.
It is important to note that Scotts EZ Patch Lawn Repair for St. Augustine Lawns does not contain grass seed. However, it is still an excellent choice for those looking to repair their lawns quickly and efficiently.
6. Green Boost Lawn Spray – Concentrated 1qt

The Liquid Lawn Fertilizer is a must-have for those who desire to keep their lawn in good condition or notice symptoms of nitrogen and potassium deficiency in their lawn. The fertilizer contains a 15-0-15 nutrient ratio and does not contain any phosphorus, making it an ideal choice for lawn maintenance.
This fertilizer is blended with the power of nitrogen and potassium, which intensifies green growth while providing key nutrients for turf hardiness. The 15% nitrogen component is a major component of chlorophyll, which is responsible for giving plants their green color. Nitrogen encourages vigorous growth and aids in the development of a dense and appealing lawn. The 15% potassium component, on the other hand, enhances the plant's endurance to stress if a deficiency is present. Potassium is involved in carbohydrate formation, photosynthesis, enzyme activation, and the formation of proteins.
Additionally, the Liquid Lawn Fertilizer is blended with Humic Acid, which is derived from the highest quality humate source, leonardite. Leonardite is considered by many to be the highest quality form of Humic Acid. Humic Acid helps in soil fertility and nutrient uptake by plants, ensuring that your lawn remains healthy and green.
This versatile formula can be used on turf grass, ornamentals, young plants, flower beds, potting soil, young trees, garden, and hardy plants. It can be used on all grass types, including Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Palmetto & Bluegrass.
Application of the Liquid Lawn Fertilizer is easy and can be done using a hose end sprayer, backpack sprayer, pump up sprayer or watering can. It can be used with your current fertilizer program, making it a great supplement to granular fertilizer programs for a quick plant uptake.
The Liquid Lawn Fertilizer is produced in the United States by a family-owned business with over 25 years of former experience in the commercial professional turf industry. This guarantees that you are getting a high-quality product that is made locally and with the utmost care.
7. Seedranch St. Augustine Lawn 24-2-11 Fertilizer – 50 Lbs.

Introducing a top-quality lawn fertilizer that is specially formulated to give your St. Augustine grass the nutrients it needs to thrive and flourish. This fertilizer boasts an impressive 6% iron content, which is essential for maintaining a lush, green lawn. With a coverage area of 12,000 square feet, this fertilizer is perfect for larger lawns or for those who want to stock up and have plenty on hand for future use.
The high iron content in this fertilizer is one of its key features, as it provides the perfect balance of nutrients that your St. Augustine grass needs to grow strong and healthy. Iron is essential for promoting deep green color and robust growth, and this fertilizer delivers just the right amount to produce stunning results.
With a coverage area of 12,000 square feet, this fertilizer is perfect for those with large lawns or those who want to ensure they have enough product for multiple applications. This high-quality fertilizer is easy to apply and will provide your St. Augustine grass with the nutrients it needs to look its best.
8. Green Max Lawn Food Spray – Concentrated, Attached Sprayer

Introducing the Easy to Use 28-0-0 Lawn Fertilizer Food, a liquid fertilizer that is specially formulated to give your lawn the nutrients it needs to maintain its vigor and correct any nutrient deficiencies. With an attached sprayer, this product covers up to 3,200 square feet, making it convenient and easy to apply.
Containing 28% Nitrogen, this high nitrogen formula encourages the growth of dense, attractive lawns by providing the necessary nutrients for chlorophyll production, which gives lawns their green coloring. The product is also designed with a mix of quick-release and slow-release nitrogen, with 70% quick-release nitrogen to provide quick absorption of nutrients and 30% slow-release nitrogen to keep your lawn fed in between applications.
This versatile lawn food can be used on all grass types, including Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Florida Palmetto, Bahia, Fescue, Ryegrass, and Kentucky Bluegrass. It is perfect for maintaining lawn vigor or treating lawns deficient in nitrogen.
The high nitrogen content of this liquid lawn food makes it an essential macronutrient, which is great as a supplement to granular fertilizer programs for a quick plant uptake. If you want to darken the green of your lawn, boost vertical and lateral growth, or correct a nitrogen deficiency, the 28-0-0 Liquid Lawn Food is the perfect solution.
9. Scotts Turf Builder Summer Lawn Food, 9.42 Lbs.

The Green Grass with Up to 50% Less Water product is a game-changer for people who love having lush lawns but also care about water conservation. This innovative product is designed to green up your lawn with up to 50% less water than traditional methods, making it an excellent choice for environmentally conscious consumers.
One of the standout features of this product is that it is a 2 in 1 Lawn Food and Water Maximizer. This means that not only will your lawn get the water it needs to thrive, but it will also be nourished with essential nutrients to promote healthy growth. The result is a lawn that is not only beautiful but also strong and resilient.
The Green Grass product is powered by Everydrop technology, which helps to maximize the effectiveness of each drop of water. This means that even if you have a limited water supply, you can still achieve great results with this product. And, when used as directed, the greening effects of this product can last up to 6 weeks, although results may vary depending on factors such as temperature and turfgrass type.
Another great thing about the Green Grass product is that it is safe to use on all grass types. Whether you have a cool-season or warm-season grass, you can rest easy knowing that this product won't harm your lawn. Plus, it builds strong, deep roots that will help your lawn withstand tough conditions like drought and heat.
10. Miracle-Gro® Water Soluble Lawn Food, 5 Lb.

The Miracle-Gro Garden Feeder is a must-have for any homeowner who desires a lush, green lawn that is the envy of the neighborhood. It is specially formulated to provide an instant and effective feeding solution for all grass types, whether they are cool-season or warm-season. With this product, you can achieve a soft green carpet of grass that will not only beautify your lawn but also make you the envy of your neighbors.
This product covers up to 7,200 square feet, making it an ideal choice for large lawns. It is designed to be used with the Miracle-Gro Garden Feeder, which makes the application process fast and hassle-free. This product is the perfect solution for busy homeowners who want the best results in the shortest possible time.
The Miracle-Gro Garden Feeder is the fastest way to achieve a thick, green lawn without having to spend hours on end maintaining it. It is formulated with all the necessary nutrients that grass needs to thrive, including nitrogen, phosphorus, and potassium. These essential nutrients work together to promote healthy root development, improve soil quality, and encourage strong, vibrant growth.
Using the Miracle-Gro Garden Feeder is easy. Simply attach it to your garden hose, add the recommended amount of product, and spray evenly over your lawn. The feeder will automatically mix the product with water, ensuring even distribution and maximum coverage.
Best Fertilizer For Yellow St Augustine Grass FAQs
Can I use a weed and feed fertilizer on my yellow St. Augustine grass?
It is not recommended to use weed and feed fertilizer on yellow St. Augustine grass. This type of grass is sensitive to herbicides, and the herbicide component of weed and feed fertilizer can cause damage to the grass. Additionally, yellow St. Augustine grass is typically suffering from a nutrient deficiency, and using a weed and feed fertilizer will not address this issue. Instead, it is recommended to apply a fertilizer specifically formulated for St. Augustine grass that contains a balance of nitrogen, phosphorus, and potassium, as well as micronutrients such as iron. It is also important to address any underlying issues that may be causing the yellowing, such as improper watering or soil pH imbalance. Consulting with a lawn care professional can help determine the best course of action for your specific lawn.
Can I use organic fertilizers on my yellow St. Augustine grass?
Yes, you can use organic fertilizers on your yellow St. Augustine grass. Organic fertilizers are made from natural sources such as animal manure, compost, and bone meal, and they can provide the necessary nutrients for your grass to grow healthy and strong. Additionally, organic fertilizers can improve the soil structure and promote the growth of beneficial microorganisms that can boost soil health.
When choosing an organic fertilizer for your St. Augustine grass, it is important to select one that is appropriate for your specific soil conditions and grass type. You should also follow the manufacturer's instructions for application rates and timing, as over-fertilization can damage your grass.
It is also important to note that organic fertilizers may take longer to show results compared to synthetic fertilizers. However, the long-term benefits of using organic fertilizers, such as improved soil health and reduced environmental impact, make them a great choice for maintaining a healthy and sustainable lawn.
How can I improve the health of my yellow St. Augustine grass with fertilizer?
To improve the health of your yellow St. Augustine grass, you can use fertilizer to provide it with the necessary nutrients it needs to thrive. The first step is to test your soil's pH level to determine the type of fertilizer needed. St. Augustine grass thrives best in a slightly acidic soil pH range of 6.0 to 6.5.
Once you know the soil pH level, choose a fertilizer that has a higher percentage of nitrogen, which is the nutrient that promotes grass growth. Apply the fertilizer according to the instructions on the package, typically once every six to eight weeks during the growing season.
It's important not to over-fertilize your lawn, as this can lead to excessive growth and contribute to thatch buildup. Additionally, water your lawn deeply and infrequently, typically once a week, to avoid shallow roots and promote healthy growth. Finally, mow your lawn regularly and at the correct height for St. Augustine grass, which is between 3 and 4 inches.
By following these steps and using the right fertilizer, your yellow St. Augustine grass should start to green up and improve in health over time.
How much fertilizer should I apply to my yellow St. Augustine grass?
The amount of fertilizer required for yellow St. Augustine grass depends on various factors such as the age of the grass, soil type, and the current nutrient levels. Typically, St. Augustine grass requires a moderate amount of nitrogen, phosphorus, and potassium for healthy growth.
To determine the amount of fertilizer required, you should first get your soil tested. This will give you an idea of the nutrient levels and pH of your soil, which will help you select the correct fertilizer and application rate.
As a general rule, it is recommended to apply 1 pound of nitrogen per 1000 square feet of lawn every 4-6 weeks during the growing season. However, it is important not to over-fertilize as this can cause damage to your grass.
It is also important to follow the manufacturer's instructions when applying fertilizer and to water your lawn immediately after application to prevent burning. In summary, it is recommended to get your soil tested, select the correct fertilizer, and apply at the recommended rate for healthy yellow St. Augustine grass.
How often should I fertilize my yellow St. Augustine grass?
Yellow St. Augustine grass requires regular fertilization to maintain its healthy growth and vibrant green color. The frequency of fertilization depends on several factors such as soil type, weather conditions, and the specific fertilizer used.
As a general rule of thumb, it is recommended to fertilize yellow St. Augustine grass every six to eight weeks during the growing season, which typically starts in early spring and ends in late fall. However, it's important to avoid over-fertilizing your lawn, as this can lead to excessive growth, thatch buildup, and nutrient leaching into the soil.
Before applying any fertilizer, it's essential to test your soil to determine its nutrient needs. This will help you choose the right type of fertilizer and application rate. You should also follow the manufacturer's instructions regarding the amount and timing of fertilization to avoid damaging your lawn.
In addition to fertilization, proper watering, mowing, and pest control practices are crucial for maintaining the health and appearance of your yellow St. Augustine grass.
Is there a specific time of year to fertilize yellow St. Augustine grass?
Yes, there is a specific time of year to fertilize yellow St. Augustine grass. The best time to fertilize this type of grass is in the spring and summer months, typically around April through September. This is when the grass is actively growing and needs the nutrients to maintain its health and color. It's important to choose a fertilizer specifically formulated for St. Augustine grass, as it has unique nutrient requirements compared to other types of grass. It's also important to follow the manufacturer's instructions for application rates and timing, as over-fertilization can lead to damage or burning of the grass. Additionally, it's a good practice to water the grass thoroughly after fertilization to ensure the nutrients are properly absorbed by the roots and not lost to evaporation.
Should I use a slow-release or fast-release fertilizer on my yellow St. Augustine grass?
When it comes to fertilizing yellow St. Augustine grass, it is important to choose the right type of fertilizer that suits the grass's needs. Yellow St. Augustine grass is a warm-season grass that requires a balanced fertilizer to promote healthy growth.
A slow-release fertilizer is ideal for yellow St. Augustine grass as it provides a consistent supply of nutrients over an extended period. Slow-release fertilizers are designed to gradually release nutrients into the soil, which helps to prevent over-fertilization and reduces the risk of burning the grass.
On the other hand, fast-release fertilizers can provide an immediate boost of nutrients to the yellow St. Augustine grass. However, they can also cause rapid growth, leading to the need for more frequent mowing, and can increase the risk of nutrient leaching, which can be harmful to the environment.
Overall, a slow-release fertilizer is the better choice for yellow St. Augustine grass as it provides a more consistent and long-lasting supply of nutrients, which can promote healthy growth without harming the environment. It is important to follow the instructions on the fertilizer package carefully and to apply it at the recommended rate to avoid damaging the grass.
What are the signs of over-fertilizing yellow St. Augustine grass?
Over-fertilizing yellow St. Augustine grass can cause several visible signs that indicate stress and damage to the turf. One of the most noticeable signs is the yellowing of the grass blades, especially near the tips. The yellowing occurs due to the excess accumulation of nitrogen in the soil, which can cause the grass to burn and become weak. Additionally, over-fertilizing can lead to an increase in thatch buildup, which can prevent water and nutrients from reaching the roots. This can result in the formation of brown patches, stunted growth, and reduced vigor. Another sign of over-fertilization is the appearance of fungal diseases, such as brown patch or dollar spot, which thrive in nitrogen-rich environments. To avoid over-fertilization, it is important to follow a regular fertilization schedule, apply the right amount of fertilizer, and water the grass thoroughly after application to prevent nutrient burn.
What is the best fertilizer for yellow St. Augustine grass?
When it comes to fertilizing yellow St. Augustine grass, there are a few things to keep in mind. First, it's important to determine the cause of the yellowing before applying any fertilizer. Yellowing can be caused by a lack of nutrients, too much water, or even pests or disease.
Assuming the yellowing is due to a lack of nutrients, the best fertilizer for St. Augustine grass is one that is high in nitrogen. Nitrogen is essential for promoting healthy growth and a lush green color. Look for a fertilizer with a high first number on the label, which indicates the percentage of nitrogen.
It's also important to choose a fertilizer that is specifically formulated for St. Augustine grass. This type of grass has unique needs and requires a fertilizer that is tailored to its specific requirements.
When applying fertilizer to yellow St. Augustine grass, be sure to follow the instructions on the label carefully. Over-fertilizing can actually do more harm than good, so it's important to use the right amount and apply it at the right time. In general, it's best to fertilize St. Augustine grass in the spring and fall, when it is actively growing.
What nutrients does yellow St. Augustine grass need?
Yellow St. Augustine grass requires various nutrients to grow healthy and lush. The key nutrients required by St. Augustine grass are nitrogen, phosphorus, and potassium. Nitrogen is essential for the development of foliage and helps in maintaining the green color of the grass. Phosphorus aids in root development, which is crucial for the establishment of the grass. Potassium is responsible for the overall health of the plant and helps in combating stress caused by drought, disease, and other environmental factors.
Apart from these, St. Augustine grass also requires micronutrients like iron, manganese, and zinc. These nutrients are essential for the healthy growth and development of the grass. Yellow St. Augustine grass may require additional nutrients, depending on the soil type, weather conditions, and other factors.
It is recommended to conduct a soil test before fertilizing the grass to determine the specific nutrient requirements. This will help in providing the necessary nutrients and maintaining the health and vigor of the grass.