Best Time to Plant St. Augustine Grass (How and When)

A lush, green St. Augustine lawn can be the envy of the neighborhood and elevate your home’s curb appeal. But how can you achieve that perfect lawn? And what is the best time to plant St Augustine grass?

For best results, plant St. Augustine grass in late spring or early summer when soil temperatures reach 65-70°F (18-21°C). It thrives in warm temperatures of 80-95°F (27-35°C). Avoid planting during freezing temperatures.

Adequate soil preparation, watering, and maintenance are essential for successful establishment.

With proper planting and care, your St. Augustine grass can thrive, providing a beautiful and functional outdoor space.

In this blog post, we will guide you through the best practices for planting, caring for, and maintaining your St. Augustine lawn, ensuring that it stays healthy and attractive for years to come.

Short Summary

  • The best time of year for planting St. Augustine grass is late spring to summer when temperatures are warm and frost is no longer a concern.
  • Planting must be customized according to the regional requirements of northern/southern states for optimal success and health.
  • Proper preparation, weed control, watering practices, fertilizing & mowing are essential for the successful establishment & maintenance of St. Augustine grass lawns.

Ideal Planting Season for St. Augustine Grass

Planting St. Augustine grass at the right time is crucial for successful establishment and a healthy, thriving lawn.

The ideal planting season for this warm-season turfgrass is late spring to summer, when temperatures are warm, and frost is no longer a concern.

Temperature Requirements

St. Augustine grass thrives in warm temperatures, ideally between 70-90°F.

This warm-season grass is particularly suited to regions with consistently high air temperatures, which provide the perfect environment for its growth.

However, it’s essential to monitor soil temperatures as well, as St. Augustine grass may enter dormancy when soil temperatures fall below 55°F. On the other hand, when soil temperatures remain above 60°F, the grass will stay green and active throughout the year.

In addition to the temperature requirements, St. Augustine grass also needs adequate sunlight for optimal growth.

This grass species prefers full sun but can tolerate partial shade, making it a versatile choice for various landscaping situations. By ensuring the appropriate temperature and sunlight conditions are met, your St. Augustine lawn will have the best chance of thriving and maintaining its lush, green appearance.

Frost Considerations

Frost can be a major concern when planting St. Augustine grass, as it is not tolerant of freezing temperatures.

Exposure to frost can adversely affect the grass, causing it to succumb if temperatures drop below 25°F. To ensure a healthy root system and successful establishment, it’s essential to plant St. Augustine grass after the last frost date and before the first frost date.

If your grass is exposed to frost, there are some measures you can take to minimize the damage. Covering plants may provide protection from a frost, but it will not be effective against a freeze. It’s also important to avoid walking on frozen grass, as this can cause additional damage.

By being mindful of frost considerations, you can give your St. Augustine lawn the best chance for successful establishment and continued growth.

Planting St. Augustine Grass in Different Regions

While St. Augustine grass can be planted in various regions, specific considerations should be taken into account for northern and southern states. These differences in planting requirements can affect the success and overall health of your St. Augustine lawn.

In the following sections, we will discuss the unique challenges and opportunities for planting St. Augustine grass in both northern and southern states.

Northern States

In northern states, planting St. Augustine grass can be a challenge due to its lack of cold tolerance.

However, it’s still possible to establish an Augustine lawn in these regions by planting during the appropriate window. The ideal season to plant St. is in the springtime.

This ensures maximum growth potential for your plants. Augustine grass in northern states is during late spring to early summer, ensuring it has enough time to establish before colder temperatures arrive.

When planting St. Augustine grass in northern states, it’s important to consider factors such as:

  • sunlight
  • rainfall
  • soil type
  • temperature

By carefully assessing these factors and planting during the optimal time, you can increase the chances of your St. Augustine grass successfully establishing and thriving in a northern climate.

Southern States

In southern states, St. Augustine grass can be planted from late spring to early fall, as the warmer climate allows for a longer growing season. However, it’s important to consider factors such as:

  • sunlight
  • rainfall
  • soil type
  • temperature

When planting St. Augustine grass in these regions. Although St. Augustine grass is well-suited to warmer temperatures, it does not tolerate extreme heat well.

To ensure successful establishment in southern states, make sure to provide your St. Augustine grass with the appropriate amount of sunlight, water, and well-draining soil. By taking these factors into account and planting during the optimal time, your St. Augustine lawn can flourish in the southern climate.

Preparing Your Lawn for St. Augustine Grass

Before planting St. Augustine grass, it’s essential to prepare your lawn properly. This involves soil testing, weed control, and removing any weed seeds to create the best environment to plant grass successfully.

By taking the time to prepare your lawn, you can set the foundation for a beautiful, thriving St. Augustine lawn.

Soil Testing

Conducting a soil test is a crucial step in preparing your lawn for St. Augustine grass.

A soil test will help you determine the soil pH and nutrient levels of your lawn, allowing you to make any necessary adjustments to create optimal conditions for St. Augustine grass growth. The optimal pH range for St. Augustine grass is between 5.0 and 7.0.

To conduct a soil test, you can follow these steps:

  1. Collect several random scoops of soil from your lawn.
  2. Submit the soil samples to a lab for testing.
  3. Based on the results, you may need to amend the soil by applying lime or fertilizer to adjust the pH and nutrient levels.
  4. By ensuring your lawn has the correct pH and nutrient levels, you can create the ideal environment for St. Augustine grass to thrive.

Weed Control

Weed control is an important aspect of caring for your St. Augustinegrass lawn.

Weeds can compete with your new grass for nutrients, water, and sunlight, making it difficult for your St. Augustine grass to establish and grow. To create a clean planting area, you’ll need to remove any existing weeds and apply a pre-emergent herbicide to prevent new weed growth.

When applying pre-emergent herbicides, be sure to follow the label instructions and apply the product at the right time for your region. Proper chemical weed control not only ensures a clean planting area for your St. Augustine grass, but also helps maintain a healthy, weed-free lawn throughout the growing season.

Planting Methods for St. Augustine Grass

St. Augustine grass can be planted using a variety of methods, including sod, plugs, or sprigs. Each method offers different advantages and establishment times, so it’s important to choose the one that best suits your needs and preferences.

In the following sections, we will discuss the benefits and drawbacks of each planting method and provide guidance on how to successfully plant St. Augustine grass using these techniques.

Sod Installation

Sod installation is the quickest method for establishing St. Augustine grass and is an excellent choice to create an instant lawn. It’s known for its thick and lush coverage.

However, this method can be more expensive than other planting options, such as plugs or sprigs. To successfully install St. Augustine soil, you’ll first need to prepare the soil by ensuring it is moist 3-4 inches deep and filling any low or uneven areas with topsoil.

Start by laying the St. Augustine sod pieces over the bare, moist soil.

Fit the edges tightly together in a staggered brick-like pattern to avoid any open cracks. Be sure to keep the newly laid soil moist by watering it frequently during the establishment period.

With proper care and maintenance, your St. Augustine sod will quickly establish, providing a beautiful, lush lawn.

Plugs and Sprigs

Plugs and sprigs are more affordable planting options for St. Augustine grass, but they require more time and care to establish a full, dense lawn.

St. Augustine plugs are small squares of sod, typically measured in square feet, or commercially available plugs that are inserted into holes or open furrows and firmly tamped into place. Stolons are nodes on a plant’s stem where its sprouts grow. Sprigs are created when these stolons are planted end-to-end in furrows 6-12 inches apart.

Both St. Augustine grass plugs and sprigs should be planted during the late spring or early summer for optimal establishment. Make sure to keep the soil moist during the establishment period to encourage healthy root growth and successful establishment.

With patience and proper care, your St. Augustine plugs or sprigs will eventually fill in and create a dense, attractive lawn.

Caring for Your Newly Planted St. Augustine Lawn

Proper care for your newly planted St. Augustine lawn is essential to ensure healthy growth and maintenance. This includes:

  • Watering practices that provide enough moisture without overwatering
  • Fertilizing with a balanced lawn fertilizer to provide essential nutrients
  • Mowing at the correct height to promote healthy growth and prevent scalping

By following these care practices, you can ensure the overall health and well-being of your St. Augustine lawn.

In the following sections, we will discuss the best practices for caring for your St. Augustine lawn and how to maintain its beauty and functionality throughout the growing season.

Watering Practices

During the establishment period, it’s crucial to water your St. Augustine lawn frequently to ensure healthy root growth and a successful establishment.

The soil needs to be established and well-rooted before grass can survive. Without rain, water these newly sodded areas regularly until this is achieved. For newly planted St. Augustine grass using sprigs, keep the soil moist until shoots and roots begin to grow.

Gradually reduce the frequency of watering while increasing the amount of water per session as your lawn becomes more established. This allows the grass to develop deeper roots and become more drought-tolerant.

Remember that proper watering practices are essential for maintaining a healthy, attractive St. Augustine lawn, so be sure to monitor your lawn’s water needs throughout the growing season.


Fertilizing your St. Augustine lawn according to soil test results and recommended guidelines ensures balanced nutrient levels for optimal growth.

It’s important to apply fertilizer every 6 to 8 weeks during the growing season to maintain your lawn’s health and appearance. Fertilize within 30-60 days after planting your new lawn to promote strong root growth and overall health.

Be cautious not to over-fertilize your lawn, as this can cause excessive thatch buildup and increase the risk of diseases. By following a balanced fertilization program, you can provide your St. Augustine lawn with the nutrients it needs to thrive and maintain its lush, green appearance.

Mowing and Maintenance

Regular mowing is an important aspect of maintaining a healthy, attractive St. Augustine lawn. Here are some tips for proper mowing.

  1. Mow your lawn at a height of 3-4 inches.
  2. Use sharp blades to ensure clean cuts and reduce the risk of diseases.
  3. Mow your lawn only as necessary.
  4. Follow proper mowing practices to maintain your lawn’s health and appearance.

In addition to mowing, it’s essential to monitor your entire lawn for pests, diseases, and thatch buildup. By staying vigilant and addressing any issues promptly, you can maintain a healthy, thriving St. Augustine lawn that will be the envy of the neighborhood.

Common Problems and Solutions for St. Augustine Grass

St. Augustine grass, like any turfgrass, may encounter problems such as pests, diseases, and thatch buildup. By understanding these issues and implementing solutions, you can maintain a healthy, thriving St. Augustine grass lawn.

In the following sections, we will discuss common problems affecting St. Augustine grass and the best practices for managing these issues.

Pests and Diseases

Pests and diseases, such as gray leaf spot diseases, can wreak havoc on your St. Augustine lawn if not properly managed.

Some common insect pests include:

  • chinch bugs
  • webworms
  • mole crickets

But diseases like large patches and gray leaf spots can also affect your lawn. To treat pests, use appropriate insecticides and follow label instructions for application rates and frequency.

For diseases, fungicides may be necessary, but prevention through proper watering and fertilizing practices is key to reducing the risk of disease outbreaks.

By monitoring your lawn for pests and diseases and treating them promptly, you can maintain a healthy St. Augustine lawn that continues to look great year-round.

Thatch Management

Thatch buildup can be a common problem in St. Augustine lawns, and it’s important to manage it effectively to maintain your lawn’s health.

Thatch is a layer of living and dead grass stems, roots, and other organic matter that accumulates between the soil surface and the green vegetation of the turf. Excessive thatch buildup can cause poor water infiltration, increased water runoff, and reduced nutrient uptake.

To manage thatch in your St. Augustine lawn, avoid over-fertilization and over-watering, as these can contribute to thatch buildup and even cause iron or manganese deficiency. Vertical mowing or topdressing can be used to remove excess thatch and promote healthy turf growth.

By properly managing thatch in your St. Augustine lawn, you can ensure healthy turf growth and maintain a beautiful, functional outdoor space.

#1 Mistake You Make Growing St Augustine Grass


In conclusion, planting and caring for your St. Augustine lawn requires attention to detail and proper maintenance practices.

By following the guidelines outlined in this blog post, you can establish a beautiful, thriving lawn that will enhance your home’s curb appeal and provide an enjoyable outdoor space for years to come.

Remember, the key to a successful St. Augustine lawn lies in proper planting, watering, fertilizing, and mowing practices, as well as diligent monitoring for pests, diseases, and thatch buildup. With these best practices in place, you can enjoy the lush, green St. Augustine lawn you’ve always dreamed of.

Frequently Asked Questions

Can you plant St. Augustine grass in the fall?

Yes, you can plant St. Augustine grass in the fall provided that it is grown sufficiently before the winter months arrive.

When can I plant St. Augustine grass in Florida?

In Florida, the ideal time to plant St. Augustine grass is during the warm months when the soil temperature remains consistently above 60 degrees Fahrenheit.

This typically falls between late spring and early summer.

Since Florida rarely experiences temperatures below 40 degrees Fahrenheit, the risk of frost damage to newly planted grass is minimal.

However, it’s worth noting that extreme high temperatures during the summer months can stress newly planted grass, so it’s important to ensure proper watering and care.

Additionally, consider local variations in weather and consult with local gardening resources for more precise timing and recommendations based on your specific location in Florida.

How should I water my newly planted St. Augustine lawn?

Water your newly planted St. Augustine lawn frequently during the establishment period. Gradually increase the amount of water each time while reducing the frequency.

What are some common pests and diseases that affect St. Augustine grass?

Common pests such as chinch bugs, webworms, and mole crickets can affect St. Augustine grass. Diseases like large patches and gray leaf spots can also cause damage.

Leave a Reply

Your email address will not be published. Required fields are marked *

Top Related Posts