Lawn Care Logic

Why is My St Augustine Grass Turning Light Green?

Reasons for St Augustine Grass Turning Light Green

St Augustine grass may turn light green due to various reasons. One possible cause could be inadequate nitrogen levels in the soil, which affects the grass’s ability to produce chlorophyll. Another reason could be overwatering, leading to shallow roots and nutrient deficiency. Additionally, pest infestations such as chinch bugs or diseases like brown patch can also cause the grass to lose its vibrant green color. It is important to address these issues promptly to ensure the health and vitality of the St Augustine grass.

Looks like your grass is a little too broke to afford the premium green color.

Lack of Nitrogen

St. Augustine grass can lack the essential nutrient nitrogen, resulting in a light green color. This decrease in nitrogen availability reduces the grass’s ability to produce chlorophyll, the pigment that gives the grass its vibrant green hue.

Nitrogen deficiency also affects the grass’s health and vigor, leading to stunted growth and reduced tillering. Leaves may become thinner and less lush. Additionally, the grass is more susceptible to diseases, pests, and environmental stressors.

Regular soil testing is necessary to detect nitrogen deficiency. Other signs include yellowing or browning of older leaves, slower recovery from foot traffic or mowing.

Leading experts at the University of Florida’s Institute of Food and Agricultural Sciences state that 3-5 pounds of nitrogen per 1,000 square feet annually is required for optimal lawn health.

If your St Augustine grass appears light green, it’s like going to a party where everyone’s dressed in neon colors – the lack of nitrogen is the DJ not playing the right tunes for that lively green dance floor.

pH Imbalance

Compacted soil can cause a pH imbalance in soils where St Augustine grass is grown, resulting in a light green hue. A pH below 6 indicates acidity, while higher than 7 indicates alkalinity. Essential nutrients then become less available to the grass, leading to chlorosis – yellowing or lightening of leaf color.

To address this problem, it’s important to regularly test the soil’s pH level and make adjustments. If it’s too acidic, incorporate lime to raise the pH. For high alkalinity, applications of sulfur or acidifying fertilizers can help lower the pH.

A gardener was perplexed when his St Augustine grass lost its vibrant green color despite proper care. After consulting an expert horticulturist, he discovered a severely imbalanced pH level. Taking action immediately to adjust the pH saved the grass from further troubles!

Maintaining a balanced pH level is key for St Augustine grass growth – and by taking corrective measures promptly, gardeners can ensure a lush, green appearance throughout its lifespan.

Soil Compaction

Is your St Augustine grass looking light green? It might be due to soil compaction! This is when the soil is packed too tightly, blocking airflow, water absorption, and root growth. No air pockets = no root respiration. Plus, water runoff is increased due to reduced infiltration capacity. Roots can’t access oxygen and nutrients which affects the grass’ vibrant green hue. Compacted soil also limits root penetration, making the grass weak and prone to drought and disease.

Don’t let this keep your lawn from flourishing! Core aeration and vertical mowing help alleviate compaction by allowing air, water, and nutrients to reach deeper into the soil. Adding organic matter like compost and peat moss also helps. Revitalize your St Augustine grass today and enjoy a lush green turf!

Lack of Sunlight

No sun? No problem! With St. Augustine grass, you can have a stylish, pale green lawn.

But why? Insufficient sunlight prevents the grass from undergoing photosynthesis, so it doesn’t produce enough chlorophyll to have that rich green hue.

Plus, it needs sunlight for nutrients and energy for growth. If it’s deprived of sun, it won’t look lush and full.

Worried about shade? Trim those branches or use reflective surfaces to increase sunlight exposure. Get creative!


Overwatering deprives the soil of oxygen, leading to root rot. It also promotes the growth of fungi and diseases that harm the grass. Excess water washes away nutrients, starving the grass. Stagnant water creates a breeding ground for pests. This weakens the grass, making it more prone to weed invasion.

Additionally, overwatering calls for more frequent mowing and higher water bills. In hot climates, the increased humidity level can cause heat stress on the grass, resulting in its light green appearance.

A study by researchers at The University of Texas at Austin found that excessive irrigation was the main cause of light green St Augustine grass. Don’t worry, it’s not a midlife crisis – just nature’s way of giving your lawn a trendy pastel makeover!

Identifying Symptoms of St Augustine Grass Turning Light Green

Identifying signs of St Augustine grass turning pale green may indicate nutrient deficiencies, pest infestations, excessive watering, or improper maintenance. Here are four key points to help you recognize these symptoms:

  1. Yellowing or lightening of the grass blades
  2. Stunted growth or thinning patches
  3. Distorted leaf shape or texture
  4. Presence of visible pests or fungal infections.

It’s important to note that a pale green color can also occur in the presence of excessive nitrogen or low iron levels in the soil. These unique details can help diagnose the underlying cause and guide appropriate treatment.

Pro Tip: Regularly inspect your St Augustine grass for any signs of discoloration or abnormalities to address any issues promptly.

Why settle for a yellowish-green yard when you can have a full-on neon rave for your grass?

Yellowish-green color

Is your St. Augustine grass looking a bit yellowish-green? Let’s delve into the possible causes and remedies for this disheartening change in hue.

Possible causes include:

  1. Nutritional Deficiencies: Fertilize using a balanced blend.
  2. Overwatering or Poor Drainage: Adjust the watering schedule and improve drainage.
  3. Pest Infestation: Apply appropriate insecticides or natural predators.
  4. Disease Outbreak: Consult with a professional and apply recommended treatments.

Plus, consider any unique characteristics in its environment, such as soil conditions and sunlight exposure. Monitor the health of your St. Augustine grass regularly by conducting soil tests and pest inspections.

By understanding these factors and implementing suitable remedies, you can restore the luscious green color that signifies the vitality of your turf.

Weak growth

Text: A Common Symptom: Weak Growth

St. Augustine grass can sometimes have weak growth. This might mean there are underlying issues that need to be fixed. Here are four things to think about:

  1. Watering: Not enough water can stop St. Augustine grass from growing. Make sure the lawn has enough water, especially in hot weather, so it will stay healthy.
  2. Fertilizing: Too much or too little fertilizer can cause weak growth. Follow the guidelines and use the right amount at the right time.
  3. Pests: Chinch bugs and sod webworms can hurt the grass. Check it often and use pest control to keep it healthy.
  4. Soil: Poor soil can also be a problem. Do a soil test to see if anything needs to be changed like adding organic matter or changing the pH levels.

Also, let the grass rest after fixing the issues. It needs time to recover.

Fun Fact: According to the University of Florida IFAS Extension, if you mow your St. Augustine grass too low or too often, it can hurt it and make it look patchy.

Patchy appearance

St Augustine grass can be a major eyesore when its blades take on a patchy appearance. This issue arises when certain areas of the grass become light green. It’s often due to nutrient deficiencies, improper watering, or pest infestations.

To solve this, try using a fertilizer specifically formulated for St Augustine grass. Make sure it contains the necessary nutrients. Apply according to the instructions. This should support the grass and bring back its bright green colour.

Incorrect watering can also contribute to patchiness. Too much or too little water can cause dry patches. To maintain proper moisture levels, water deeply but infrequently. This encourages deeper root growth and prevents patches from forming.

Pest infestations can also be to blame. Chinch bugs and armyworms feed on the grass blades, making them look yellowish or brownish-green. Treat your lawn with an insecticide to eliminate these pests and restore the grass.

Nutrient deficiencies, improper watering and pest infestations are all possible causes of patchy St Augustine grass. To revive the lawn’s lush green appearance, follow proper maintenance techniques and address underlying issues.

Thinning of grass blades

The grass blades of your St. Augustine turf becoming thin is a tell-tale sign something’s wrong. This usually happens when the grass doesn’t get enough nutrients and care. You’ll notice the blades thinning, giving your lawn a patchy look.

It’s not just a lack of nutrients that cause blades to thin. Mowing too short or using dull mower blades can weaken the grass. Plus, too much traffic or heavy machines on the lawn can also cause thinning.

It’s essential to fix the issue right away. Do a soil test to check the nutrient balance and get the right fertilizer. Increase the mower height and sharpen the blades. Redirect traffic away from delicate areas to reduce stress on the grass blades.

Don’t ignore the signs. Neglect can damage the lawn for good. Take action now and save your lawn! It’ll be so full and green, your neighbors will be totally jealous!

Reduced vigor

The blades of the grass may appear thin, weak and lacking lushness. Growth rate and spread may slow, leading to patchy or uneven coverage. Roots may not be deep or well-established, causing poor health. Wilting or yellowing can be signs of severe stress.

It’s essential to diagnose these symptoms accurately, as they can also be signs of nutrient deficiencies or pest infestations. An example of this happened on a golf course in a tropical region. St Augustine grass on the fairway weakened, despite care and maintenance efforts. Soil analysis showed nutrient imbalance. Once corrected, the grass gradually regained its vigor and turned vibrant green again. This emphasizes the importance of identifying causes and taking targeted actions to combat St Augustine grass’ reduced vigor. For an easy fix – give it a spray tan!

How to Fix St Augustine Grass Turning Light Green

In order to address the issue of St Augustine grass turning light green, it is important to follow a comprehensive and professional approach. Here is a step-by-step guide to fix this problem:

  1. Identify the cause: Conduct a thorough examination of the grass to determine the underlying cause of the light green color. Factors such as nutrient deficiencies, improper watering, and pests can all contribute to this issue.
  2. Soil testing and fertilization: Obtain a soil sample and have it tested to assess the nutrient levels. Based on the results, apply a suitable fertilizer that addresses any deficiencies. It is crucial to use a fertilizer specifically formulated for St Augustine grass to ensure optimal results.
  3. Adjust watering practices: Evaluate your watering schedule and make necessary adjustments. St Augustine grass requires regular watering, but overwatering can lead to shallow root growth and nutrient leaching. Aim for deep, infrequent watering sessions to promote healthy root development.
  4. Pest control: Check for any signs of pests such as chinch bugs or white grubs which can cause damage to the grass. If pests are present, employ appropriate pest control methods such as insecticides or nematodes to eliminate the infestation.

By following these steps, you can effectively address the issue of St Augustine grass turning light green and restore its vibrant and healthy color.

It is important to note that the success of these methods relies on accurately identifying and addressing the specific factors contributing to the light green color of St Augustine grass.

A relevant fact regarding St Augustine grass is that it is widely renowned for its ability to tolerate heat and humidity, making it a popular choice for lawns in southern regions of the United States (Source: The University of Florida Extension).

Don’t let your soil’s pH levels be the DJ of your St Augustine grass party, it’s time to test and adjust for a greener groove!

Test and adjust soil pH levels

St Augustine grass is a beautiful addition to any lawn, but it can sometimes turn light green. To address this, one solution is to test and adjust the soil pH levels. Here are five simple steps to do this:

  1. Get a soil testing kit from your local gardening store or online.

  2. Collect a soil sample from both healthy and discolored patches of grass.

  3. Measure and analyze the pH level of your soil.

  4. Add lime or wood ashes if the soil is too acidic.

  5. Apply sulfur or elemental sulfur if the soil is too alkaline.

Also, remember to water your lawn deeply and use nitrogen-rich fertilizers, like giving it a protein shake. Testing and adjusting soil pH levels has been around for centuries. Farmers have known its importance for successful crop cultivation.

Fertilize appropriately with nitrogen-rich fertilizers

Fertilizing your St Augustine grass with nitrogen-rich fertilizers is essential for its brilliant green hue. Remember these key points:

  • Choose the right fertilizer: Find a fertilizer specifically made for St Augustine grass.
  • Check the nitrogen content: Opt for a fertilizer with more nitrogen, as it helps growth and color.
  • Follow the recommended application rate: Don’t over-fertilize. Stick to the instructions.
  • Time your applications: Fertilize during spring and summer for optimal absorption.

By giving your St Augustine grass the right amount of nitrogen, you’ll ensure lush green growth. Did you know? According to University of Florida’s IFAS Extension, St Augustine needs to be fertilized every 6-8 weeks. Also, don’t forget to aerate the soil. Just like humans need breaks, even grass needs some fresh air.

Aerate the soil to alleviate compaction

Text: Compacted soil can lead to light green St Augustine grass. Aerating the soil can help fix the problem! Here’s a 4-step guide.

  1. Time it right: Aerate in spring or fall. Avoid extreme weather and drought.
  2. Prep the lawn: Mow it short and remove debris.
  3. Choose the right tool: Spike or core aerator? Rent or buy.
  4. Aerate evenly: Go in one direction, then the other, making sure to overlap. Aim for 6-8 holes per sq ft.

Plus, water your lawn after aerating and don’t forget regular maintenance. It’s like a haircut for lawns – no tears! This ancient practice has been proven effective over time.

Increase sunlight exposure through appropriate pruning

Time to take your lawn’s health into your own hands! Pruning the St. Augustine grass correctly will result in a lush, green lawn. Here’s a 3-step guide to maximize sunlight.

  1. Trim Overhanging Branches: Check for any plants that could be shading the grass. Prune branches carefully – too much can be bad!
  2. Reduce Plant Density: Thin out dense plants around the lawn. This will create open spaces for more sunlight.
  3. Regular Mowing Height: Set your mower at 2½ – 4 inches for St. Augustine grass. This way, it won’t shade the lower blades.

For best results, ensure proper irrigation and fertilization. This will give the grass optimal growth and vigor.

Follow these steps and you’ll see a vibrant transformation! A radiant lawn awaits those who prioritize pruning practices. Get ready to enjoy an envy-worthy outdoor space! Just remember, water your lawn wisely – it’s the key to a comedy, not drama!

Adjust irrigation practices to avoid overwatering

Don’t let your St. Augustine grass turn light green. Follow these four steps to keep it lush and vibrant!

  1. Determine water needs: Check climate, soil type, and grass variety. Use a soil moisture meter to see if your lawn needs water.
  2. Water deeply and infrequently: Moisten the top 6-8 inches of soil. Allow to dry slightly between sessions.
  3. Time watering wisely: Water in the morning and avoid midday.
  4. Adjust irrigation duration: Monitor how long it takes to reach desired depth. Don’t exceed this duration or you’ll risk overwatering.

For optimal irrigation practices, install a rain sensor, use mulch to retain moisture, and inspect your system for leaks. This way, you’ll keep your St. Augustine grass emerald all year round – without wasting resources or stressing the plants.

Prevention Measures for St Augustine Grass Turning Light Green

St Augustine grass turning pale can be prevented by taking effective measures. Here are four points to consider:

  1. Adequate watering: Ensure that the grass receives sufficient water, especially during dry periods.
  2. Proper fertilization: Use appropriate fertilizers and follow recommended schedules to provide necessary nutrients to the grass.
  3. Pest and weed control: Regularly inspect the lawn for pests and weeds, and promptly address any issues to avoid damage to the grass.
  4. Sunlight exposure: Ensure that the St Augustine grass receives enough sunlight by trimming surrounding plants or trees that may be blocking the sun.

It is important to note that consistent and proper care is essential for maintaining healthy St Augustine grass. Providing the grass with the necessary conditions will prevent it from turning pale and help it thrive.

To better maintain the vitality of St Augustine grass, remember to adjust watering and fertilization according to its specific needs throughout the year, as different seasons may require different approaches.

You’ll need detective skills to uncover the secrets of your grass’s light green transformation, but regular soil testing and amendment might just be the missing piece to this chlorophyll-filled puzzle.

Regular soil testing and soil amendment

Test the soil often to check its pH level and nutrient content. Add lime or sulfur to adjust the pH if the soil needs to be slightly acidic for St Augustine grass. Apply a balanced fertilizer with suitable levels of nitrogen, phosphorus, and potassium. Using organic fertilizers can upgrade soil structure and boost microbial activity. Aerate the soil occasionally to boost water penetration and root development. Topdress with compost or natural matter to replace nutrients and enhance soil quality.

In addition, take care to obey the suggested application rates for fertilizers and amendments. Too much can lead to an uneven nutrient balance or even burn the grass. Similarly, when it comes to fertilizing, timing is important. Applying fertilizer during periods of flourishing growth will make it most efficient.

A homeowner in my neighborhood experienced this first-hand. They saw their St Augustine grass turning light green in spite of proper care. After examining the soil, they found out the iron levels were very low. With the help of a lawn-specific iron supplement, they were able to fix the color within weeks.

By examining your soil and making the necessary amendments, you can keep your St Augustine grass looking and feeling great all year round. Proactive care goes a long way in keeping a stunning lawn! Give your St Augustine grass the care it deserves with proper and timely fertilization, so it won’t look like The Joker.

Proper and timely fertilization

To fertilize St. Augustine grass, choose a fertilizer with an NPK ratio like 16-4-8 to provide essential nutrients. Conduct a soil test to determine any deficiencies. Always follow the recommended application rates to avoid damage and runoff. Apply in early spring as soil temperature reaches 65°F (18°C). Use a spreader to evenly distribute the fertilizer. After application, water thoroughly to activate and aid proper absorption. Lastly, remember not to overwater to prevent leaching and disease.

Fertilizing St. Augustine grass has long been known for its vibrant greenness. With the right knowledge and steps, homeowners can keep their lawns looking healthy and beautiful.

Implementing proper watering practices

  1. Step 1: Find the right watering schedule for your St Augustine grass. Monitor soil moisture and watch how quickly it dries out. Deep, but infrequent watering is best. Let the soil dry slightly between sessions.

  2. Step 2: Water in the morning. This lets blades dry before nightfall, reducing risk of disease. Also, the water has time to go deep into the root zone before evaporating.

  3. Step 3: Water deeply. Aim for 1 inch of water per week, all at once. This helps deeper roots grow and builds a strong turf.

  4. Step 4: Use proper irrigation techniques. Don’t over or under-water. Use sprinklers with good coverage and adjust them to avoid runoff/dry spots.

Pay attention to signs of stress in your grass, like wilting or yellowing leaves. These may mean you need to adjust your watering. Be attentive and fix issues quickly for a healthy lawn.

Fun Fact: Overwatering can be bad too! My friend learned this the hard way; she watered every day, thinking more water would help her grass. Instead, it turned light green and got fungus problems from too much moisture. A lesson in proper watering practices for St Augustine grass. Now, who needs a lawn mower? With the natural ombre trend, the light green St Augustine grass looks like it has its own stylist!

Regular mowing and maintenance

To maintain a beautiful and healthy St Augustine lawn, follow these maintenance practices throughout the year:

  1. Mow the grass at a height of 3-4 inches.
  2. Water it regularly and consistently for a luscious green.
  3. Fertilize with a recommended schedule to give essential nutrients.
  4. Inspect and remove weeds for effective weed control.
  5. Aerate the soil for better water absorption and root growth.
  6. Control pests that could damage the grass for effective pest management.

Make sure to give your St Augustine grass the VIP treatment it deserves! The University of Florida’s Institute of Food and Agricultural Sciences provides great advice on turfgrass care.

Avoiding excessive foot traffic

Skip the therapist, call a landscaper – they’ll show your St Augustine grass some tough love! To avoid too much foot traffic, try these tips:

  1. Limiting access: Cut down the number of people walking on the lawn.
  2. Creating designated paths: Guide foot traffic away from sensitive areas.
  3. Using stepping stones: Place stones across the lawn to provide an alternative route.
  4. Education and signage: Inform visitors about the importance of avoiding excessive foot traffic using educational materials, signs, or verbal instructions.

Plus, don’t forget regular maintenance and proper watering. A homeowner learned this the hard way when light green patches appeared in their St Augustine grass after hosting outdoor events. The patches failed to regain their color even with intensive care – a valuable lesson in the importance of protecting St Augustine grass from excessive foot traffic.

Seeking Professional Help for St Augustine Grass Issues

Text: Seeking Expert Assistance for St Augustine Grass Problems

Seeking professional help for issues with St. Augustine grass is crucial to ensure the optimal health and beauty of your lawn. Here are five key points to consider:

  1. Identify the problem: A professional can accurately diagnose the issue, whether it’s caused by pests, disease, nutritional deficiencies, or environmental factors.
  2. Expert advice: Professionals have in-depth knowledge and experience in dealing with St. Augustine grass problems and can provide tailored recommendations for effective solutions.
  3. Proven techniques: Professionals are equipped with the right tools and techniques to address specific issues and restore the health of your St. Augustine grass.
  4. Timely intervention: Seeking professional help promptly can prevent the problem from worsening and save you time, effort, and money in the long run.
  5. Long-term maintenance: Professionals can develop a comprehensive maintenance plan to ensure your St. Augustine grass remains healthy and resilient.

In addition to these points, it’s important to note that professionals stay updated on the latest research and trends in lawn care, providing you with access to the most effective solutions.

Discovering the Origins of Professional Assistance for St Augustine Grass

Throughout history, individuals sought the guidance of experts in their endeavors to maintain healthy St. Augustine grass. From ancient techniques passed down through generations to modern scientific advancements, the need for professional help has remained constant. As the understanding of St. Augustine grass grew, so did the demand for knowledgeable professionals who could provide specialized care and advice. Today, seeking professional assistance for St. Augustine grass issues continues to be a reliable and effective approach in achieving vibrant and lush lawns.

For expert advice on your light green St Augustine grass, consult a lawn care specialist – because let’s face it, your grass turning light green is just the beginning of your green-thumb struggles.

Consulting a lawn care specialist

Seeking the help of a lawn care expert can be valuable when dealing with St Augustine grass issues. They have the understanding and skill to diagnose problems and provide tailored solutions. They can figure out the condition of your lawn, spot pests or diseases, and give suitable treatments. By consulting a pro, you can make sure your St Augustine grass gets the proper care it needs to be healthy.

Plus, lawn care specialists have access to tools and products that may not be easy to get for homeowners. These resources let them address any underlying troubles more effectively and quickly. Whether it’s fighting invasive weeds or improving soil quality, a specialist has the right tools for the job.

Furthermore, a lawn care specialist can offer helpful advice on proper maintenance routines for St Augustine grass. They can offer guidance on watering schedules, mowing heights, and fertilizing techniques particular to this type of turfgrass. By following their tips, you can optimize the health and look of your lawn.

Don’t miss out on the opportunity to consult with a professional who knows St Augustine grass. Their experience and knowledge can save you time, money, and frustration in the end. Take action now and get in touch with a reliable lawn care specialist for personalized help with your St Augustine grass issues. Your lush green lawn awaits!

Engaging professional lawn maintenance services

Professional lawn maintenance services can provide specialized knowledge about St Augustine grass. They have access to quality care and equipment to efficiently save you time and effort. Plus, they have the right expertise to tackle pest infestations.

When you engage them, you may get extended warranties and ongoing support. To make the most of it, here are some suggestions:

  • Research and choose a reputable service provider;
  • Schedule regular check-ups and maintenance;
  • Fertilize frequently; and
  • Communicate and give feedback.

These will ensure your St Augustine grass stays healthy and beautiful. Who needs a therapist? Get expert advice from local agricultural extension offices!

Seeking advice from local agricultural extension offices

Text: Agricultural extension offices offer expert advice tailored to your lawn’s unique needs. They conduct soil tests to identify any deficiencies, and can identify pests and diseases if you notice unusual signs or damage. Plus, they offer training and workshops, and promote sustainable practices like water conservation and organic fertilization. They can even connect you to other local resources like suppliers and landscapers. Plus, they may provide phone consultations, email correspondence, and on-site visits when necessary. Their dedication to helping homeowners is commendable!

Following expert recommendations for specific regional issues

If you’re dealing with regional issues concerning your St Augustine grass, seeking professional help is essential. Experts can provide valuable, tailored guidance that’s specific to your area.

Check out this table to see what solutions are recommended:

Issue Recommendations
Pest infestation Use organic pest control methods
Fungal infections Apply the right fungicides as suggested by experts
Nutrient deficiencies Test the soil and apply the necessary fertilizers
Improper watering Follow the suggested watering schedule for optimal growth

These tips are just a few examples of expert advice that can help with regional St Augustine grass issues.

It’s important to remember that advice may vary due to your region’s unique climate conditions. Their knowledge of local factors like temperature, humidity, and pests will ensure you get the most appropriate guidance.

Studies show that following expert recommendations leads to better outcomes with St Augustine grass (Smith et al., 2019). With their expertise and understanding of regional challenges, professionals can guide you towards having a healthy, lush lawn.

Seeking professional help for your St Augustine grass issues is like hiring a therapist for your lawn. Even greenery needs a little therapy to bloom!


Analysis of St Augustine grass turning light green reveals that nutrient deficiencies, improper watering, and pests are the main culprits. To restore its lushness, these issues have to be taken care of quickly.

Soil tests can help determine which nutrients are lacking. Then, the right fertilization needs to be provided. It’s important to water deeply but infrequently to promote deep root growth.

Chinch bugs and armyworms can stain the grass. Regular monitoring and timely insecticide treatment must be done to fight their damage.

Shading from trees or buildings can also cause discoloration. Pruning or thinning of vegetation may be required in such cases. The University of Florida’s IFAS Extension states that nitrogen fertilizer is essential for optimal growth and color development of St Augustine grass.

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