how to make st augustine grass spread quickly

How to Make St. Augustine Grass Spread Quickly


St. Augustine grass is a popular choice for lawns due to its durability and beautiful appearance. One common goal of homeowners is to make their St. Augustine grass spread quickly, filling in bare patches and creating a lush, green carpet. In this article, we will discuss effective methods to achieve rapid spreading and ensure a healthy, vibrant lawn.

Proper Watering

Adequate watering is essential for the growth and spread of St. Augustine grass. Water deeply to encourage the roots to reach further into the soil. Ensure that the soil is moist to a depth of at least 6 inches during each watering session. However, avoid excessive watering as it can lead to shallow root growth, disease, and weed problems.

Frequent Mowing

Regular mowing is crucial to promote spreading in St. Augustine grass. Set your lawnmower to the appropriate height, usually around 3 to 4 inches, and ensure that the blades are sharp. Mow the grass frequently but avoid cutting off more than one-third of the leaf blade at a time, as this can stress the grass and hinder spreading.

Proper Fertilization

Providing the right nutrients to your St. Augustine grass is vital for its rapid spread. Apply a slow-release or controlled-release fertilizer specifically designed for St. Augustine grass during the growing season. Follow the manufacturer’s instructions to avoid over-fertilization, which can cause excessive growth and thatch buildup. A balanced fertilizer with nitrogen, phosphorus, and potassium will support healthy growth and encourage spreading.


Regular aeration helps St. Augustine grass spread quickly by reducing soil compaction and improving root penetration. Use a lawn aerator or aerating shoes to create small holes in the soil, allowing oxygen, water, and nutrients to reach the grassroots more effectively. Aim to aerate your lawn once or twice a year, preferably during the growing season for optimal results.


If you have bare patches or areas with thin grass, overseeding can help accelerate spreading. Choose high-quality St. Augustine grass seed and spread it evenly over the bare areas. Ensure good soil contact by gently raking the seeds into the soil. Keep the overseeded areas consistently moist until the new grass establishes itself.

Controlling Weeds and Pests

Weeds and pests can compete with St. Augustine grass, hindering its spread. Regularly inspect your lawn to identify and address any weed or pest issues promptly. Use appropriate herbicides and insecticides recommended for St. Augustine grass, being careful to follow the instructions and not damage the grass in the process.


With proper care and attention, St. Augustine grass can spread quickly, transforming your lawn into a lush and vibrant oasis. Remember to water deeply, mow regularly, fertilize appropriately, aerate the soil, consider overseeding, and diligently control weeds and pests. By following these guidelines, you can enjoy a beautiful, full St. Augustine grass lawn that enhances the aesthetic appeal of your property.

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