How to Make Bermuda Grass Thicker: 11 Tried-and-True Tips

The grass is greener on the other side of these tips

Single family home with landscaping
Photo: Chuck Beyer / Adobe Stock
Single family home with landscaping
Photo: Chuck Beyer / Adobe Stock
Get quotes from up to 3 pros!
Enter a zip below and get matched to top-rated pros near you.
Geo Icon

Dealing with patchy grass? While it’s not the best for curb appeal (or picnics on the lawn), thinned-out grass can also be a sign of disease, irrigation, or soil quality problems. Turn that grass into a luscious green carpet with these 11 tips for making Bermuda grass thicker.

11 tips to make your Bermuda grass thicker, including overseeding patchy and sparse areas

1. Change Up Your Lawn Mowing Technique

Just because Bermuda grass can grow tall doesn’t mean you should allow that. Mow your lawn weekly so that it’s no more than 1 inch tall for your Bermuda grass to grow laterally. 

This encourages the root system, called grass stolons, to grow outwards and spread to those bare patches in your yard, turning your Bermuda grass into a thick oasis. At the same time, you also don’t want to mow the grass too low, as this can expose the stems to the elements and hinder its growth, so only set your lawn mower to just under 1 inch.

2. Test Your Soil

Conducting a soil test tells you what the pH level, soil type, and nutrient quantities are in the soil. You’ll need to do this step before you consider fertilizing your lawn so you know what ratios to add to the soil for the ideal Bermuda grass environment. 

Ideally, your soil will have a pH between 5.9 and 7.0. Bermuda grass can handle fairly alkaline conditions, but this grass species is no match for acidic soils. You might need to apply lime to your yard to alkalinize the soil and promote thicker Bermuda grass.

3. Fertilize Your Lawn

Man fertilizing and seeding backyard lawn
Photo: The Toidi / Adobe Stock

Bermuda grass is a hungry grass species, requiring many nutrients in order to thrive. As a result, you have to maintain your lawn with a slow-release NPK (nitrogen, phosphorus, and potassium) fertilizer that’s high in nitrogen to help your grass grow. 

Add the fertilizer in early spring—right at the end of the dormancy season for Bermuda grass. For climates that don’t have a dormancy period, fertilize in March or April for the best results.

If you’re unsure of which fertilizer ratio to use, it might be a good idea to hire a lawn care service for recommendations. Most professionals near you are familiar with the soil quality, amount of rainfall, grass species, and climate in your area—all of which can impact what type of fertilizer you should use for your yard and how often you should use it.

4. Aerate the Lawn

After testing your soil, you may find you have compacted soil. This can stunt roots and prevent them from growing deeper into the ground and accessing water and nutrients. Yearlycore aeration improves your soil quality by increasing water, nutrients, and air circulation in the ground. 

Having better-aerated soil makes the ground more drought-resistant by allowing water to travel more deeply into the ground rather than stay on the surface or become water runoff.

5. Dethatch Your Yard

If your Bermuda grass lawn already looks brown and dead and has a spongy feel to it, then it might be time to dethatch before you get started on the aeration process. In fact, dethatching and aerating services often go hand-in-hand. 

Dethatching your lawn is the process of removing debris and dead grass to help encourage healthy root growth. Thatch prevents water, sunlight, and fertilizer from reaching the roots of your grass, leading to stress and suffocation. The thatch should be at least 1/2 an inch thick, although you can wait until the thatch is 1 or more inches thick.

6. Overseed the Bermuda Grass

If you’ve aerated and dethatched your lawn, you now have a blank canvas for overseeding (also called reseeding) your yard. 

Overseeding your Bermuda grass lawn in the springtime gives this warm-season grass the best chance to grow thick in time for late spring and summer to arrive. This method also promotes an even distribution of grass so your lawn is uniform. 

7. Water Your Yard

Woman watering the lawn
Photo: Syda Productions / Adobe Stock

If Mother Nature hasn’t brought any rain your way in a while, it might be time for you to give your grass a watering to help it thrive. Climates that receive less than 1 inch of rainwater a week in the spring and summer need 1 inch of supplemental watering per week. 

Sandy soils should receive 1/2 an inch of water every three to four days, while clay soil should have more frequent yet shorter watering periods throughout the week for the water to reach the root zone. 

8. Control the Weeds

Though you might consider native plants weeds, most are beneficial and drought-resistant, but other invasive species of plants are water hogs that steal the water from your grass and lead to patchy, brown lawns. 

For example, some weeds, like crabgrass, will choke and kill emerging Bermuda grass as it comes out of dormancy in the springtime. Either pull these weeds out by hand or use herbicides to manage weeds in your yard and give your Bermuda grass a fighting chance. 

It’s a good idea to start on weed control at the end of winter or early spring to prevent weeds from stealing the nutrients out of the soil come summertime. 

9. Check for Pests and Diseases

From insects to bacteria to fungus, infestations can also thin out your Bermuda grass and prevent you from having that stunning, thick lawn. It’s important to rule out infestations to avoid spending time and money on one of the other solutions only for it to not work. 

Inspect your grass for signs of insects, brown and spotty leaves, or discolored roots and stems, and then treat with a fungicide or pesticide accordingly. 

10. Adjust the Shade Levels

No, we don’t mean your sunglasses. A shady lawn can actually hinder growth and ruin your Bermuda’s grass chance at looking thick and vibrant. This grass species loves direct sunlight—at least four hours a day—so you’ll want to hire a tree service to prune your trees if you have too much shade coverage. 

11. Hire a Lawn Specialist

Man using a lawn mower
Photo: romaset / Adobe Stock

If you’ve tried all of these tips and still have a thin yard, it might be time to call in the pros. A lawn specialist near you knows the ins and outs of your region’s climate and can better direct you to the best solutions for turning your Bermuda grass into the yard of your dreams.

Frequently Asked Questions

There are several possible reasons why your Bermuda grass is not thick, with the biggest reasons being too little water, too much shade, compacted soil, drainage issues, and too few nutrients in the soil. Bermuda grass needs frequent and direct sunlight to stay thick, so thinning grass is likely the result of a lack of sun. 

The best fertilizer for thick Bermuda grass is an organic fertilizer with an N-P-K ratio high in nitrogen, low in phosphorus, and low in potassium. Organic fertilizers help Bermuda grass grow stronger and healthier by retaining water well, supporting microbiome life, and promoting long-term soil health. However, this type of fertilizer is more expensive than synthetic fertilizers. 

Need professional help with your project?
Get quotes from top-rated pros.
The homeowners guide to lawn fertilization and treatments
From average costs to expert advice, get all the answers you need to get your job done.
power seeding machine on large lawn
Jan 18, 2024
Jan 18, 2024
Power seeding is an efficient way to plant new grass in your yard. Find out what power seeding costs by lawn size, type of grass, and other top factors.
Brother and sister running in front yard
Jan 23, 2024
Jan 23, 2024
Wondering how much fertilizer costs?’ We’ve got you covered, with answers based on the size of your yard, type of fertilizer, and whether you hire a pro.
A toddler holding a football running along her father and her dog in the garden
Feb 15, 2024
Feb 15, 2024
Does it matter when you fertilize your lawn? Learn when to fertilize grass to get your lawn healthy and greener than ever.
A family playing in the garden
Jan 3, 2024
Jan 3, 2024
The key to killing mushrooms and preventing them from taking over your yard is making the yard inhospitable. They hate sunlight and lack of food.
Father and son playing with their dog
Feb 20, 2024
Feb 20, 2024
For a lawn that turns neighbors green with envy, your grass seed needs the best chance at survival from the start. Find the best grass type for your yard and region.
A luxury house with lawn garden at dusk
Feb 8, 2024
Feb 8, 2024
Grass seeds thrive in soil rich in nutrients, but a potting mix will not support your grass’ long-term health. Find out which type of soil is best for grass.
Share project details to get started.