When it comes to creating a lush green lawn, one of the most important factors is proper fertilization. The right fertilizer can help your grass grow thick, healthy, and full, leading to a lawn that’s the envy of your neighborhood.
However, with so many fertilizers on the market, it can be difficult to know which one is best for your lawn. That’s why we’ve compiled a list of the 7 best fertilizers to thicken grass and the secrets to making your lawn thicker and healthier.
7 Best Fertilizer to Thicken Grass
Image | Product | Features | Price |
---|---|---|---|
![]() | Brand : Scotts | $92.98 | |
![]() | Brand : Jonathan Green | $106.39 | |
![]() | Brand : The Andersons | $98.88 | |
![]() | Brand : Scotts | $64.99 | |
![]() | Brand : Scotts | $69.97 | |
![]() | Brand : Greenview | $69.99 | |
![]() | Brand : Marathon | $46.51 |
From slow-release options that provide consistent nourishment over time, to fast-acting formulas that give your grass an instant boost, we’ll cover all the top fertilizers for thicker grass. We’ll also go over the essential nutrients your grass needs to grow, and what to look for when choosing a fertilizer for your lawn.
Whether you’re an experienced gardener, or just starting on your lawn care journey, this post will give you all the information you need to make the best choice for your lawn.
So, let’s get started and learn how to grow a thicker, greener lawn with the best fertilizers for thick grass!
1. Best Fertilizer to Thicken Bermuda Grass
Scotts Turf Builder THICK’R Lawn Grass

- Brand : Scotts
- Color : Green
- Expected Blooming Period : Summer, Spring
- Item Weight : 10 Pounds
- Unit Count : 1.0 Count
- Expected Planting Period : Spring
As a homeowner, I understand the importance of having a lush green lawn. However, maintaining a healthy lawn can be a challenge, especially in tough weather conditions like scorching heat and dry areas.
That’s why I was excited to try the Scotts Turf Builder Thick’R Lawn and EZ Seed Patch & Repair for Bermudagrass bundle. This bundle promised to repair bare patches, and thicken and green up my entire lawn.
I was impressed with how easy it was to use the bundle. The Scotts Turf Builder Thick’R lawn Bermuda grass is a 3-in-1 solution that contains a soil improver for enhanced root development, seed to fill gaps with new grass, and fertilizer to feed new grass and thicken and green existing turf.
The Scotts EZ Seed Patch & Repair Bermuda grass is a unique combination of Scott’s high-performance seed, premium continuous-release lawn food, and super-absorbent growing material, making it possible for grass to grow anywhere (subject to proper care).
I applied the bundle to my Bermudagrass lawn in late spring as instructed, and I was blown away by the results. Within just a few weeks, I started to see new growth filling in the bare patches. The existing grass was also thicker and greener, giving my lawn a whole new look.
I also appreciated that one 40 lb. bag of Scotts Turf Builder Thick’R Lawn Bermuda grass covers 4,000 sq. ft. and one 10 lb. bag of Scotts EZ Seed Patch & Repair Bermuda grass covers up to 225 sq. ft.
The Scotts Turf Builder is a best fertilizer to thicken bermuda grass. It’s easy to use, and the results speak for themselves. I highly recommend this bundle to anyone looking for a solution to repair, thicken and green up their lawn.
2. Best Fertilizer For Thickening Grass
Jonathan Green Green-Up Lawn Food

- Brand : Jonathan Green
- Coverage : 15,000 Sq. Ft
- Item Weight : 45 pounds
- Unit Count : 1.0 Count
- Expected Planting Period : Spring
If you’re looking to start a new lawn or repair bare patches, Jonathan Green-Up lawn hood for seeding & sodding is the solution you need. This fertilizer, with an analysis of 12-18-8, is designed to help new grass seedlings grow strong roots and grow faster and thicker.
The high phosphorus content of the fertilizer is key in the development of root formation, while the humates it contains enhance the efficiency and exchange of plant nutrients.
Applying the fertilizer is easy.It can be done using a rotary, drop, or hand-held spreader, and should be applied the same day as seeding or sodding.
The 45 lb bag covers up to 15,000 sq. ft. and feeds for up to 2 months. The best time to apply the fertilizer is when seeding in the spring or fall.
Jonathan Green is the best fertilizer for thickening grass and a trusted brand in lawn care, with six generations of experience in growing great-looking lawns.
Whether you’re starting a new lawn or looking to repair bare patches, Green-Up fertilizer will help you achieve the thick and healthy lawn you desire.
If you’re looking for a carefree lawn, Jonathan Green is your go-to supplier of grass seed, soil enhancers, fertilizer, and other lawn care products.
3. Best Fertilizer For Thicker Grass
Super Juice Supplement Lawn Fertilizer

- Brand : The Andersons
- Color : Green
- Expected Blooming Period : Summer, Spring
- Item Weight : 13.6 Pounds
- Unit Count : 1.0 Count
- Item Form : Granular
The Super Juice All-in-One lawn fertilizer is a game changer for those looking to achieve a lush and healthy lawn. With its new improved formula that contains 4% Iron, this fertilizer offers all the essential nutrients that your lawn needs to grow thicker and greener.
The convenient dry mix formula makes application incredibly easy. Simply add the mixture to water and apply it to your lawn with a hose-end sprayer.
One bag of Super Juice can treat up to one acre of lawn, providing complete coverage with a balanced mix of nutrients. This eliminates the need for multiple fertilizers, saving you time and money.
The humic acid and micronutrient content, including the added 4% Iron, helps to enhance the absorption of the nutrients and results in faster results, especially during the spring months when the grass needs a quick boost.
Super Juice is not only convenient, but it’s also environmentally friendly, with no waste products or bio-waste. It’s perfect for those looking to maintain a healthy lawn while also being mindful of its impact on the environment.
Super Juice All-in-One is the best fertilizer for thicker grass and an excellent choice for anyone looking for an easy and effective way to achieve a thick and healthy lawn. Just add to water, spray, and watch your grass transform before your eyes.
4. Best Fertilizer to Thicken Grass
Scotts Green Max Lawn Food Builds Thick

- Brand : Scotts
- Color : Green
- Item Weight : 1 pounds
- Unit Count : 1.0 Count
- Expected Planting Period : Spring
This lawn food is not just about providing a quick green boost, but also about providing essential nutrients for long-term growth and health. It contains a balanced formula of essential nutrients like nitrogen, phosphorus, and potassium, which promotes healthy root growth and overall lawn health. The fertilizer is safe to use and will not stain when used as directed.
Scotts Green Max Lawn Food is easy to apply, with a spreader or by hand, and can cover up to 10,000 sq. ft. You can re-enter the lawn immediately after application, making it convenient and hassle-free.
This fertilizer is perfect for those looking for a fast solution to achieve a lush and green lawn. It is ideal for those who want to take a proactive approach to lawn care, ensuring that their lawn receives all the essential nutrients it needs for healthy growth.
Scotts Green Max Lawn Food is the best fertilizer to thicken the grass and a must-have for anyone looking to achieve a thick, green, and healthy lawn.
Its dual-action formula makes it a versatile and effective solution for all grass types, and the fast results are a bonus. Whether you are a seasoned gardener or just starting, this fertilizer is sure to provide you with the results you are looking for.
5. Best Fertilizer too Keep Grass Green and Thick
Scotts Turf Builder Thick’R Lawn Grass

- Brand : Scotts
- Item Weight : 40.3 pounds
- Unit Count : 1.0 Count
- Expected Planting Period : Spring
Scotts Turf Builder Thick’R Lawn Grass Seed, Fertilizer, and Soil Improver is a comprehensive solution for thin lawns, making it a must-have for homeowners who want to transform their lawns into lush and verdant oases. This innovative product is designed to offer everything needed to achieve a thicker and greener lawn in just one easy application.
The 3-in-1 formula contains seeds to fill in any gaps in your current lawn, fertilizer to promote thicker and greener growth, and soil improver to enhance root development. With a single application using a spreader, you can expect to see up to a 50% increase in the thickness of your lawn, subject to proper care.
Scotts® Turf Builder® Thick’R Lawn® is formulated specifically for tall fescue lawns, making it an ideal solution for homeowners who want a lawn that can handle moderate foot traffic and is resilient enough to withstand varying weather conditions.
With this product, you can enjoy a beautiful and healthy lawn in no time, without the hassle of multiple applications or complicated instructions.
Scotts Turf Builder Thick’R Lawn Grass Seed, Fertilizer, and Soil Improver is the best fertilizer to keep the grass green and an easy, affordable, and effective solution for homeowners who want to transform their lawns into lush and verdant oases. With its comprehensive formula, guaranteed results, and easy application.
6. Best Fertilizer To Help Grass Grow Thick
GreenView Fairway Spring Fertilizer

- Brand : Greenview
- Expected Blooming Period : Summer, Spring
- Item Weight : 36 Pounds
- Active Ingredients : Nitrogen
- Coverage : 15000 square_feet
GreenView Fairway Formula is the perfect solution for anyone looking to achieve professional, DIY results in their lawn care.
This pro-grade fertilizer not only provides your lawn with the necessary nutrients it needs to thrive, but it also helps to prevent the growth of crabgrass and eliminate over 200 tough lawn weeds.
The 65% slow-release nitrogen formulation ensures a steady and even feeding for up to 12 weeks, giving your lawn the continuous nourishment it needs to grow thick and healthy.
This product is easy to use, simply spread it over your lawn and enjoy its benefits. With the GreenView, you can trust that you are getting a quality product that delivers results or your money back.
The only drawback to this product is that it is not available for sale in AK, CA, or HI, and it should not be used on St. Augustine grass in Florida or on dichondra and carpet grass as it may result in serious lawn injury.
GreenView Fairway Formula Spring Fertilizer Weed & Feed with Crabgrass Preventer is the best fertilizer to help the grass grow thick and a great investment for anyone looking to take their lawn care to the next level.
With its ability to provide a crabgrass preventer, lawn fertilizer, and broadleaf weed killer all in one application, it is an efficient and cost-effective solution for a healthier and thicker lawn.
7. Best Fertilizer To Thicken St Augustine Grass
Marathon 24-2-4 All Season Fertilizer Bag

- Brand : Marathon
- Item Weight : 1 pounds
- Unit Count : 1.0 Count
- Expected Planting Period : Spring
Marathon 24-2-4 All Season Fertilizer is a perfect choice for lawns that need quick greening and a boost of nitrogen. This formula is specifically designed for Marathon lawns, making it a great option for those who want to keep their lawns looking healthy and vibrant year-round.
With three fertilizers in one, you can easily switch from the quick boost formula to the Winter formula and the Maintenance formula, depending on your lawn’s needs.
The Quick Boost formula is perfect for reviving faded lawns, giving them the high nitrogen they need to become lush and green again. The Winter formula, on the other hand, provides relief to yellowed lawns during the cooler months with its high nitrate content.
The Maintenance formula is a great option for keeping your lawn looking its best all season long, with the right balance of nutrients to keep your lawn healthy and thriving.
What’s even better is that you don’t have to worry about any complicated assembly or preparation before using this fertilizer. Simply apply it to your lawn and let the magic happen!
Marathon 24-2-4 All Season is the best fertilizer for thicker grass and an excellent choice for anyone looking to maintain a beautiful and healthy lawn all year long.
Conclusion
Having a thick, lush lawn is every homeowner’s dream. The 7 best fertilizers to thicken grass reviewed in this blog post provide a range of solutions to help you achieve your goal, from dual-action formulas that provide both nutrients and iron to seed, fertilizer, and soil improver blends that promise to create a 50% thicker lawn.
Regardless of the product you choose, it is essential to follow the application instructions carefully and to be patient, as results may take time to become visible. With the right fertilizer, a little care, and some attention to detail, you can create a beautiful and healthy lawn that will be the envy of your neighborhood.
FAQs
How Can I Make my grass thicker?
To make grass thicker, you can aerate the soil, fertilize the lawn, overseed bare or thin spots, mow at the correct height, water deeply and regularly, and remove any obstacles to sunlight.
Does frequent mowing of thick grass?
Yes, frequent mowing can help maintain a thick lawn. Mowing regularly at the correct height encourages grass to grow thicker by promoting tillering, which is the growth of additional shoots from the base of the plant.
This results in a denser lawn with more grass blades, which can help prevent weed growth and retain moisture.
Why is my grass thin and patchy?
Thin and patchy grass can be due to several factors including lack of water and nutrients, soil compaction, disease or insect infestations, over-mowing, shading from trees or buildings, or lack of maintenance.
How do I make my grass thicker without weeds?
To make grass thicker without weeds, aerate soil, fertilize with a balanced fertilizer, overseed, mow at the right height, use pre-emergent herbicide, remove weeds by hand or with herbicide, and water deeply and regularly.
Why is not my lawn thick?
A thin lawn can be caused by lack of water/nutrients, soil compaction, disease/pests, over-mowing, shading, or lack of maintenance.
To resolve these issues, identify the cause and take appropriate steps such as watering, fertilizing, aerating, removing obstacles to sunlight, and providing adequate maintenance.
Additional Questions
What is the best fertilizer for thickening grass?
The best fertilizer for improving the thickness of your grass is largely dependent on the specific requirements of your soil and grass type. However, generally speaking, a balanced all-purpose fertilizer like Hyponex 13-13-13 can provide your grass with the nutrients it needs to grow thicker and fuller. It’s advisable to perform a soil test first to determine the nutrients your lawn is deficient in before deciding on the best fertilizer to use. Bear in mind that grass thickening also demands good lawn practices such as mowing at the right height and watering correctly.
What is the secret to a thick lawn?
The secret to achieving a lush, thick lawn is regular overseeding. This is a technique used by professionals to enhance lawn quality and increase its thickness. The best times to overseed cool-season northern lawns are in the fall and spring, while warm-season southern lawns achieve best results when overseeded in late spring. Overseeding essentially rejuvenates your lawn, filling in patchy areas and contributing to its overall health and appearance.
How can I make my grass thicker and fuller?
To make your grass thicker and fuller, you’ll need to invest time and effort into good lawn care practices. These include regular overseeding, proper watering, timely fertilization, and appropriate mowing. If you are seeking a quicker solution, you might consider using a fast-release, all-purpose fertilizer such as Hyponex 13-13-13 which can stimulate rapid growth, making your lawn appear thicker and fuller in a shorter span of time.
What is 13 13 13 fertilizer good for?
The Hyponex 13-13-13 40 lb. all-purpose fertilizer is an efficient way to provide your plants with the essential nutrients they need to grow. It is a versatile product suitable for a wide range of plants including vegetables, shrubs, trees, hedges, and flowers. The fast-release formula of this fertilizer means that it can feed your plants for up to 2 weeks, promoting healthy and robust growth.