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Best Weed And Feed For St Augustine (2024 Updated)

If you're looking for a healthy, lush lawn, adding a weed and feed product to your lawn care routine can help you achieve that goal. But with so many options out there, it can be tough to narrow down the best one for your particular type of grass. Before buying any weed and feed for St. Augustine grass, it's crucial to consider a few key factors.

One of the most important things to keep in mind is your lawn's unique needs. Different geographic regions have different soil types, which can affect the growth and health of your grass. You'll also want to consider any environmental factors that might be impacting your lawn, such as extreme weather conditions, pests, or plant diseases. Additionally, you'll need to think about the type of weeds that are most commonly found in your area, and choose a product that targets those specific types of weeds.

When it comes to choosing a weed and feed product for St. Augustine grass, there are a few questions to consider. What are the active ingredients in the product, and how do they target weeds while promoting healthy grass growth? What's the right application rate for your lawn, and how often do you need to apply the product to see results? And finally, does the product have any potential negative effects on the environment or on nearby plants and wildlife? By doing your research and asking the right questions, you can choose the best weed and feed for your St. Augustine lawn and keep it healthy and beautiful all year long.

10 Best Weed And Feed For St Augustine

# Product Image Product Name Product Notes Check Price
1
It is an ideal weed and feed solution for southern lawns.
2
Ideal for controlling weeds and promoting healthy growth of St. Augustine grass with a balanced fertilizer.
3
Ideal for fertilizing and controlling weeds in Southern lawns.
4
The product is ideal for eliminating weeds and promoting healthy growth of St. Augustine grass.
5
The product is ideal for fertilizing and controlling weeds on lawns up to 5,000 square feet.
6
This herbicide is ideal for killing weeds in St. Augustine lawns.
7
This product is ideal for eliminating weeds and preventing fire ants while fertilizing lawns in Southern regions.
8
The product is ideal for fertilizing and controlling weeds on lawns that are 5000 square feet or less.
9
The product is ideal for controlling weeds and promoting healthy growth of St. Augustine grass.
10
This lawn fertilizer is ideal for building thick, green lawns with deep greening in just three days.
It is an ideal weed and feed solution for southern lawns.
Ideal for controlling weeds and promoting healthy growth of St. Augustine grass with a balanced fertilizer.
Ideal for fertilizing and controlling weeds in Southern lawns.
The product is ideal for eliminating weeds and promoting healthy growth of St. Augustine grass.
The product is ideal for fertilizing and controlling weeds on lawns up to 5,000 square feet.
This product is ideal for eliminating weeds and preventing fire ants while fertilizing lawns in Southern regions.
The product is ideal for fertilizing and controlling weeds on lawns that are 5000 square feet or less.
The product is ideal for controlling weeds and promoting healthy growth of St. Augustine grass.
This lawn fertilizer is ideal for building thick, green lawns with deep greening in just three days.

1. Bioadvanced 3-In-1 Weed And Feed For Southern Lawns, Granules, 12.5 Lb

Maintain a lush and healthy lawn with Southern Lawns. This specially formulated product is designed to cater to the needs of southern turfs like Bermuda Grass, St Augustine Grass, Centipede Grass and Zoysia Grass. The weed killer in this product is effective against dandelion, dollar weed, clover, and other common weeds. With a 50% slow-release formula, it feeds your lawn and provides it with the necessary nutrients to stay green and strong. Additionally, it prevents broadleaf, grassy weeds, and crabgrass for up to 6 months, giving your lawn a long-lasting protection. You can use Southern Lawns without worrying about harming your lawn, as long as you follow the instructions correctly.

Say goodbye to unwanted weeds and hello to a healthy lawn with Southern Lawns. This product is a powerful weed killer that is designed to eliminate dandelion, dollar weed, clover, and other common weeds. At the same time, it feeds your lawn with essential nutrients to keep it green and strong. You can enjoy up to 6 months of protection against broadleaf, grassy weeds, and crabgrass, thanks to the product's special formulation. Plus, it is safe for use on southern turfs like Bermuda Grass, St Augustine Grass, Centipede Grass and Zoysia Grass, and won't cause any harm when used as directed.

Achieve a picture-perfect lawn with Southern Lawns. This product is specially designed for southern turfs like Bermuda Grass, St Augustine Grass, Centipede Grass and Zoysia Grass. It features a unique combination of weed killer and lawn fertilizer that effectively eliminates common weeds like dandelion, dollar weed, and clover, while feeding and strengthening your lawn. Its slow-release formula ensures that your lawn stays healthy and green for a long time. Additionally, it provides up to 6 months of protection against broadleaf, grassy weeds, and crabgrass, making it a must-have for lawn care enthusiasts. Southern Lawns is easy to use and won't harm your lawn when used as directed.

Pros

  • Specially formulated for southern turfs like Bermuda Grass, St Augustine Grass, Centipede Grass and Zoysia Grass
  • Effective weed killer that eliminates common weeds like dandelion, dollar weed, and clover
  • Feeds and strengthens your lawn with essential nutrients
  • Provides up to 6 months of protection against broadleaf, grassy weeds, and crabgrass
  • 50% slow-release formula ensures long-lasting results
  • Safe for use when used as directed

Cons

  • – May not be suitable for use on other types of grass

2. Fertilome (10917) St. Augustine Weed & Feed 15-0-4 (32 Lbs.)

This herbicide is a versatile solution for controlling both pre-emergent and post-emergent weeds. It is also a fertilizer mix with a 15-0-4 formula designed specifically for St. Augustine, Centipede, and Zoysia lawns. It works to keep the lawn healthy by preventing weed growth and providing essential nutrients. However, it is not recommended for use on Bermuda Grass or any other type of Northern grass.

To achieve the best results, it is recommended to apply the herbicide in early spring, which will provide long-lasting weed control and boost the overall health of the lawn. This product can cover an area of up to 5,000 square feet, and the application method varies based on the footage of the area. For more information on how to properly apply the product, refer to the label.

Pros

  • Controls both pre-emergent and post-emergent weeds
  • Fertilizer mix with 15-0-4 formula for St. Augustine, Centipede, and Zoysia lawns
  • Improves lawn health and provides essential nutrients
  • Long-lasting weed control
  • Covers up to 5,000 square feet

Cons

  • – Not recommended for use on Bermuda Grass or any other type of Northern grass
  • – Application method varies based on the footage of the area

3. Scotts Turf Builder Bonus S Southern Weed & Feed2, 17.24 Lbs.

The weed killer from this brand is a great solution for those looking to get rid of dollarweed, clover, and other listed lawn weeds. Not only does it kill the weeds, but it also feeds the grass which helps to crowd out future weeds. By building strong, deep roots, this product helps to strengthen the grass against heat and drought.

Please note that this product is not suitable for use on Bermudagrass lawns. It can only be used on St. Augustinegrass (including Floratam), centipede, zoysia, and carpetgrass lawns. This product is available in TX, FL (except Panhandle region), LA, AL, GA, MS, NC, and SC.

Pros

  • Kills dollarweed, clover, and other listed lawn weeds
  • Feeds grass to crowd out future weeds
  • Builds strong, deep roots to strengthen against heat and drought

Cons

  • – Not suitable for use on Bermudagrass lawns

4. Lesco 50 Lb. St. Augustine Grass Weed And Feed With Penoxsulam

Achieve a lush and healthy St. Augustine turf with Lesco Professional's 50 LB, 13,00 SQFT, 17-0-17 Turf Fertilizer. This specially formulated fertilizer contains 30% Poly Coated Sulfur Coated Urea, which slowly releases nutrients over an extended period of time, providing up to 8 weeks of feeding.

For best results, apply the fertilizer when the turf is wet and allow it to dry. You can expect to see total results in just 2 weeks. Lesco Professional's St Augustine Turf Fertilizer is safe for Floratam variety and is specially designed to cater to the needs of St. Augustine grass.

This fertilizer is easy to use and its slow-release formula ensures that your St. Augustine turf stays healthy and vibrant for longer periods of time. Invest in Lesco Professional's St Augustine Turf Fertilizer for a lush and green lawn that you can be proud of.

Pros

  • Contains 30% Poly Coated Sulfur Coated Urea for slow-release of nutrients
  • Provides up to 8 weeks of feeding
  • Specially formulated for St. Augustine grass
  • Easy to use

Cons

  • – May take up to 2 weeks to see total results

5. Scotts Turf Builder Weed And Feed 3; Covers Up To 5,000 Sq. Ft., Fertilizer, 14.29 Lbs.

Scotts Turf Builder Weed and Feed3 is a powerful lawn care product designed to kill existing weeds and feed your lawn to thicken it up and prevent future weed growth. With the help of WeedGrip Technology, this weed and feed product targets and destroys over 50 different types of lawn weeds, including dandelion, clover, chicory, plantain, purslane, morningglory, and eveningprimrose.

One bag of Scotts Turf Builder Weed and Feed3 is enough to cover an area of 5,000 sq. ft. and can be applied to a variety of grass types, including Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass. Please note that this product is not recommended for use on St. Augustinegrass (including Floratam), Dichondra, Lippia, Carpetgrass, and Bentgrass lawns.

Scotts Turf Builder Weed and Feed3 is an excellent choice for anyone looking to maintain a lush, weed-free lawn. It is easy to use and provides long-lasting results that will keep your lawn looking beautiful all season long.

Pros

  • Kills existing weeds and feeds your lawn to prevent future weed growth
  • Targets over 50 different types of lawn weeds
  • Utilizes WeedGrip Technology for maximum effectiveness
  • Can be applied to a variety of grass types
  • Easy to use and provides long-lasting results

Cons

  • – Not recommended for use on certain grass types such as St. Augustinegrass (including Floratam), Dichondra, Lippia, Carpetgrass, and Bentgrass lawns
  • – Not available in FL

6. Southern Ag 006130 Atrazine St. Augustine Weed Killer 32oz Specialty Herbicide, Light Tan

Looking for a simple and effective solution to control weeds in your lawn? The XXX Weed Killer is an excellent choice that offers a powerful formula to eliminate unwanted weeds in St. Augustine and Centipede grasses. With just one quart, you can treat an impressive 3,720 sq ft of lawn, giving you great value for your money.

The XXX Weed Killer is specially formulated to target and eliminate weeds while keeping your lawn healthy and green. It is easy to apply and works quickly to deliver results that you can see in no time. With its powerful formula, this weed killer gets right to the root of the problem to ensure that the weeds do not return.

The package weight of the XXX Weed Killer is 1.021 kilograms, making it easy to handle and store. The package dimensions are 5.842 L x 19.177 H x 12.954 W (centimeters), making it a compact and convenient size that you can easily store in your garage or shed.

Pros

  • Powerful formula to eliminate weeds in St. Augustine and Centipede grasses
  • Covers an impressive 3,720 sq ft of lawn with just one quart
  • Easy to apply and works quickly to deliver visible results
  • Gets right to the root of the problem to prevent weeds from returning
  • Compact and convenient package size for easy storage

7. Triple Threat Lawn Care Treatment

Scotts Turf Builder Southern Triple Action is the perfect three-in-one formula for Southern grasses that performs three essential functions that keep your lawn looking great. The formula effectively kills dollarweed and clover, eliminates and prevents fire ants and provides the necessary nutrients for your lawn to thrive.

This amazing formula is specially designed to kill the listed lawn weeds, including dollarweed, dandelion, clover, oxalis, plantain, chickweed, and henbit. This solution also provides six months of fire ant control while also controlling armyworms, fleas, mole crickets, chinch bugs, sod webworms, and ticks.

The Scotts Turf Builder Southern Triple Action not only protects your lawn from pests and weeds, but it also strengthens it against heat and drought, making it perfect for St. Augustinegrass (including Floratam), Centipedegrass, Zoysiagrass, and Carpetgrass. This solution is easy to apply using any Scotts spreader, and it is advisable to apply it when both the grass and weeds are actively growing. A 26.64 lb. bag of this product can cover up to 8,000 sq. ft. and is available in AL, AR, FL, GA, KS, LA, MO, MS, NC, NM, OK, SC, TX.

The Scotts Turf Builder Southern Triple Action is a must-have for any homeowner who wants to keep their lawn healthy and free from pests and weeds. This solution is highly effective in controlling pests and weeds while providing the necessary nutrients for your lawn to thrive.

Pros

  • Kills dollarweed, dandelion, clover, oxalis, plantain, chickweed, and henbit
  • Provides six months of fire ant control
  • Controls armyworms, fleas, mole crickets, chinch bugs, sod webworms, and ticks
  • Strengthens lawn against heat and drought
  • Easy to apply using any Scotts spreader
  • Covers up to 8,000 sq. ft.

Cons

  • – Only available in select states

8. Pennington 100536600 Ultragreen Weed & Feed Lawn Fertilizer, 12.5 Lbs, Covers 5000 Sq Ft

This fertilizer is a perfect solution for those who want to get rid of broadleaf weeds and want to green up their lawn. It has the ability to kill over 250 broadleaf weeds, including dandelion, henbit, dollar weed, white clover, plantain and chickweed, making it a great choice for those who want a weed-free lawn. It can treat both northern and southern grasses, but it is not recommended for floral St. Augustine.

The fertilizer is designed to provide quick greening and extended feeding to your lawn. It contains essential nutrients that your grass needs to grow properly and stay healthy. With this fertilizer, you can be sure that your lawn will look lush and green all year round.

The fertilizer is easy to apply, and it comes in a convenient package that makes it easy to store. The package contains all the necessary instructions for application, so you don't have to worry about getting it wrong. Just follow the instructions carefully, and you will have a beautiful lawn in no time.

Pros

  • Kills over 250 broadleaf weeds
  • Treats northern and southern grasses
  • Provides quick greening and extended feeding
  • Contains essential nutrients for healthy growth
  • Easy to apply

Cons

  • – Not recommended for floral St. Augustine

9. Deep Green Lawn In 3 Days

Achieve deep greening of your lawn in just three days with the dual-action and 2-in-1 formula of the Scotts Lawn Food. This high-quality lawn food not only feeds your grass but also supplements it with iron to ensure a healthier and greener-looking lawn. You can apply it to any grass type in the spring, summer, and fall months without worrying about stains when used as directed.

Scotts Lawn Food is recommended for many lawns as part of the Scotts Lawn Care Plan. It is safe to re-enter your lawn immediately after applying the product. Give your lawn the nourishment it deserves with Scotts Lawn Food and enjoy a greener and healthier lawn.

Pros

  • Dual-action and 2-in-1 formula for feeding and supplementing with iron.
  • Can be applied to any grass type in the spring, summer, and fall months.
  • Does not stain when used as directed.
  • Recommended for many lawns as part of the Scotts Lawn Care Plan.
  • Safe to re-enter your lawn immediately after applying the product.

Best Weed And Feed For St Augustine FAQs

Can weed and feed harm St. Augustine grass?

Yes, weed and feed products can harm St. Augustine grass if they are not used properly. These products contain herbicides and fertilizers that are designed to eliminate weeds while promoting the growth of grass. However, St. Augustine grass is sensitive to some of the chemicals in weed and feed products, especially when they are applied at the wrong time or in the wrong amount.

Overuse of weed and feed products can cause damage to St. Augustine grass, leading to yellowing, thinning, and even death of the grass. Additionally, using weed and feed on newly planted or immature St. Augustine grass can also cause harm.

To avoid damaging your St. Augustine grass, it is important to follow the instructions on the weed and feed product carefully. It is also recommended to apply weed and feed during the dormant season, when the grass is not actively growing. This will help to minimize the risk of damage and ensure that your St. Augustine grass stays healthy and lush.

How does weed and feed work to control weeds and fertilize St. Augustine grass?

Weed and feed is a popular lawn care product that helps control weeds and fertilize St. Augustine grass. The product consists of a combination of herbicides and fertilizers that are designed to work together to eliminate weeds while promoting healthy lawn growth.

The herbicides in weed and feed work by targeting the root system of the weeds, preventing them from growing and spreading. This helps to eliminate the competition for nutrients and water that the St. Augustine grass needs to thrive. The fertilizers in the product then provide the necessary nutrients to the grass, helping it grow stronger and healthier.

It's important to note that weed and feed should only be used on St. Augustine grass and not on other grass types, as it can damage or even kill them. It's also important to follow the manufacturer's instructions carefully when using weed and feed to avoid over-application, which can harm the grass and surrounding plants.

Overall, weed and feed is an effective solution for controlling weeds and promoting healthy St. Augustine grass growth, but it should be used with care and caution to ensure the best results.

What are the most effective weed and feed products for St. Augustine grass?

When it comes to weed and feed products for St. Augustine grass, there are several effective options available in the market. One of the most popular choices is the Scotts Turf Builder Bonus S Southern Weed and Feed. This product is specially formulated for Southern lawns and is designed to kill weeds while also providing nutrients to the grass. It is effective against a variety of broadleaf weeds, including dandelion, clover, and chickweed.

Another excellent option is the Lesco St. Augustine Weed and Feed. This product is also formulated for Southern lawns and contains a potent herbicide that can kill a wide range of weeds. It also contains essential nutrients like nitrogen, phosphorus, and potassium, which help promote healthy growth in St. Augustine grass.

Other effective weed and feed products for St. Augustine grass include the BioAdvanced All-In-One Weed and Feed, the Pennington Ultragreen Southern Weed and Feed, and the Hi-Yield Weed and Feed. Before choosing any of these products, be sure to read and follow the instructions carefully to ensure the best results.

What is the best time to apply weed and feed to St. Augustine grass?

The best time to apply weed and feed to St. Augustine grass is during the growing season, which is typically from late spring to early fall. It is recommended to apply the weed and feed when the grass is actively growing and not during periods of drought or extreme heat. It is also important to read the instructions on the product carefully and follow them accordingly. Over-application can damage the grass, while under-application may not effectively control weeds. Additionally, it is essential to avoid applying weed and feed before or after heavy rainfall, as it can wash away the product before it has a chance to work. It is important to note that different regions and climates may have varying optimal times for applying weed and feed, so it is always best to consult with a local lawn care professional for specific recommendations.

What is the recommended frequency for applying weed and feed to St. Augustine grass?

The recommended frequency for applying weed and feed to St. Augustine grass depends on various factors such as weather conditions, soil type, and the intensity of weed infestation. However, in general, it is recommended to apply weed and feed to St. Augustine grass twice a year, during spring and fall. This helps to control weeds and fertilize the grass to promote healthy growth.

During spring, it is advisable to apply weed and feed when the grass starts to turn green and grow actively. This will provide the necessary nutrients for the grass to grow healthy and strong. In contrast, during fall, it is recommended to apply weed and feed when the grass starts to slow down its growth to prepare for the winter season. This will help to build up the root system and ensure the grass remains healthy during the winter months.

It is important to note that overuse of weed and feed can damage the St. Augustine grass, so it is essential to follow the manufacturer's instructions carefully. Additionally, it is recommended to water the grass before and after applying weed and feed to ensure the nutrients are properly absorbed by the roots.

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