How To Make St Augustine Grass Thicker and Spread Quicker

CitraBlue St. Augustine grass sod in Louisiana

How to make St. Augustine grass thicker

St. Augustine grass is a warm-season turfgrass common in the southern United States. This grass has a deep green color and a dense, carpet-like growth habit.

If you want your St. Augustine grass to grow thicker, you can do a few things.

how to make st Augustine grass thicker

If your St. Augustine lawn looks sparse, you can do a few things to make it thicker.

Lawn care

St. Augustine grass is tolerant of heat and humidity, but it does not tolerate cold well.


Deep watering encourages deeper roots, making for a thicker lawn. Water your lawn deeply but infrequently. Deep watering encourages deep root growth, which will make your grass thicker.

Water in the early morning, if possible. This will give the water a chance to soak in before it evaporates.

Water deeply but not too frequently, letting the soil dry out somewhat between watering.

Set your sprinklers and irrigation system to start early in the morning.

best time to water lawn in hot weather


Most turfgrasses need at least 6 hours of direct sunlight daily to thrive and look their best. The more sunlight you can give your grass, the faster and more robust it will grow. If your St. Augustine grass is growing beneath trees, thin out some of the branches to allow more light to reach your lawn grass.

Good Soil Nutrition


Have you ever noticed how much better your St. Augustine grass does when it’s fertilized regularly? That’s because the nutrients in the fertilizer make your grass stronger and healthier.

St. Augustine grass likes to be fertilized regularly. It is a warm season grass, so it grows best in early spring and summer. You will want to fertilize during the spring and early summer growing months.

Use a good nitrogen fertilizer to get your St. Augustine grass spread quickly.

You can also feed your St. Augustine grass with a slow-release fertilizer or a liquid fertilizer every four weeks during the growing season.

Fertilize regularly with a high-quality fertilizer. A thick, healthy lawn is the result of proper care.

The best type of fertilizer for St. Augustine grass is an organic slow release fertilizer. Organic fertilizers contain nutrients that are taken up by the plant more slowly, resulting in less chance of burning your grass and more gradual growth.

We like to use milorganite and ironite to encourage fast growth and deeper green color.

broadcast spreader for lawn care treatments of fertilizer, herbicides, insecticides


How often should you mow St. Augustine grass?

How often you mow your St. Augustine grass depends on the growth rate, which is influenced by temperature, rainfall, and fertilizer application. In general, you should mow St. Augustine grass once a week during the growing season when the grass is actively growing.

If you’re trying to get your grass to grow faster, thicker, and spread faster, you will have to cut your lawn more often..

Make sure you mow your lawn at the proper height. St. Augustine grass should be mowed at 3-4 inches..

St Augustine grass cutting height 

When it comes to St. Augustine grass, there is some debate on the ideal cutting height. Some experts recommend cutting at 2.5 to 3 inches, while others say 3 to 4 inches is best.

Ultimately, it depends on your personal preference and the amount of foot traffic your lawn gets.

If you have a lot of foot traffic, you may want to cut the grass shorter.

You can afford to let the grass grow a little taller for yards with less foot traffic.

The best time to mow your grass is when the humidity is low, and the temperature is above 75 degrees. If you must cut your grass when it has rained, wait a few hours for the blades to dry out..

lawn maintenance lawn mower


The best method of weed control is to be proactive and use a good pre-emergent herbicide to prevent weed growth. Weed and feed that is safe for Saint Augustine lawns.

Attack the seeds before the weeds have a chance to take hold.

If you have weeds in your lawn, use a selective pre emergent herbicide like atrazine to help prevent the germination of weed seeds.

grow thick

how to make st. augustine grass thicker and spread quicker


Aerate your lawn yearly to improve drainage and promote a thicker, healthier lawn.

Aeration is the process of punching small holes in the soil to allow air, water, and nutrients to reach the roots of your grass.

This simple step will make a big difference in the health of your lawn.


Use a de-thatcher or thatch rake to remove dead grass and other debris from the surface of your lawn.

By following these simple tips, you can have a thick, healthy lawn that will be the envy of your neighborhood..

lawn aeration with aerator dethatcher

How long does it take for St. Augustine grass to spread?

St. Augustine grass is a warm-season turfgrass that is commonly used in lawns in the southern United States.

It is a fast-growing grass that can spread rapidly, especially in areas with warm, humid climates.

St. Augustine grass spreads by sending out above-ground runners, or stolons, which can grow up to several feet in length..

The stolons take root at the nodes and joints, where they contact soil and form new plants.

The spreading process can be quick, especially in areas with warm, humid climates.

However, it can take several weeks or months for the grass to spread and fill in an area..

best grass for shade. shade tolerant grasses st. augustine grass and zoysia

How Do You Encourage St. Augustine to Spread?

To encourage St. Augustine to spread, you can provide fertilizer and water regularly.

Water it regularly and deeply, especially during hot, dry periods.

Fertilize it with a balanced fertilizer three times a year.

Is Scotts Turf Builder good for St. Augustine grass?

Yes, Scotts turf builder is good for most lawns and safe for most home users to apply.

Augustine grass is a dense grass with lush growth. Use these tips to get thicker turf to cover your entire lawn.

How Do You Make Grass Grow Thicker?

how to thicken st augustine grass

how to make st augustine grass thicker

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