St Augustine Grass Vs Bermuda Grass Key Differences

Last Updated on February 22, 2026 by D. Ruddy

Choosing the right grass for your lawn can feel like a big decision, especially when you see the St Augustine grass vs Bermuda grass key differences and wonder which one is best for you. Many folks get a bit confused because both are popular, but they act very differently in your yard. Don’t worry, we’ll break it down simply, step by step, so you can pick the perfect grass.

Next, we’ll look at what makes each grass special.

Key Takeaways

• St. Augustine grass is shade-tolerant and spreads with thick, wide blades.
• Bermuda grass loves sun, grows aggressively, and has fine-textured blades.
• Water needs differ significantly between the two types of grass.
• Each grass has unique temperature preferences for optimal growth.
• Pest and disease resistance varies, impacting lawn care efforts.
• The way they spread and the texture of their blades are major distinguishing factors.

Understanding St. Augustine Grass

St. Augustine grass is a fantastic choice for many homeowners, especially in warmer climates. It’s known for its beautiful, deep green color and its ability to form a dense lawn.

This grass type is quite forgiving and can handle a good amount of foot traffic, making it suitable for family yards. Its wide, flat blades create a lush look that many people desire.

Growth Habits of St. Augustine Grass

One of the most noticeable things about St. Augustine grass is how it grows. It spreads through above-ground stems called stolons.

These stolons spread out horizontally, creating a thick mat that helps choke out weeds. This is why it’s often described as a “choking” grass. It doesn’t spread as quickly as some other grasses, but once it’s established, it creates a very solid and attractive turf.

• Stolons: These are above-ground stems that help the grass spread. They creep along the surface of the soil.
• Rhizomes: St. Augustine grass also has rhizomes, which are underground stems. These help it to spread and also to recover from damage.
• Density: The combination of stolons and rhizomes allows St. Augustine to create a very dense turf. This density is great for preventing weeds.

The way St. Augustine grass spreads is a key factor in its popularity. Homeowners appreciate its ability to fill in bare spots naturally over time.

This spreading habit means that once you have a healthy lawn, it’s less likely to develop sparse areas that invite weeds. It’s a relatively low-maintenance grass once established, making it a favorite for those who want a beautiful lawn without constant work.

Shade Tolerance

A major advantage of St. Augustine grass is its good tolerance for shade. While it does best with at least some sun, it can thrive in areas where other grasses might struggle.

This makes it a great option for yards with many mature trees or homes that cast significant shadows.

Many people struggle to grow grass in shady spots. St. Augustine grass offers a solution.

It can maintain its color and health even with limited sunlight. This is a big difference compared to many other common turf grasses that need full sun to look their best.

For example, a homeowner with a backyard that is mostly shaded by large oak trees might find that Bermuda grass dies back quickly. However, St. Augustine grass would likely grow well in that same spot.

This makes it a versatile choice for diverse landscape designs.

Water and Temperature Needs

St. Augustine grass prefers warm climates and needs a good amount of water to stay healthy and green. It’s not the most drought-tolerant grass, so consistent watering is important, especially during hot, dry periods.

It generally thrives in temperatures between 75 and 90 degrees Fahrenheit. It can go dormant in cooler weather, turning brown, but it will usually green up again when temperatures rise.

When it comes to watering, St. Augustine grass likes its soil to be moist but not waterlogged. Deep, infrequent watering is usually better than light, frequent watering.

This encourages the roots to grow deeper into the soil, making the grass more resilient.

For instance, if you live in a region that experiences long, dry spells, you’ll need to be diligent about watering your St. Augustine grass. If you’re looking for a grass that can survive with very little water, St.

Augustine might not be the best fit for your specific environment.

Texture and Appearance

The blades of St. Augustine grass are noticeably wider and have a darker green color than many other grasses. This creates a plush, luxurious feel underfoot and a visually appealing lawn.

Its coarse texture gives it a distinctive look.

When you run your hand over a St. Augustine lawn, you’ll feel the difference. The blades are broader and feel softer than the fine blades of some other grasses.

This broadleaf characteristic also means it looks a bit more “tropical” to some people.

Compare this to a grass with very fine blades; St. Augustine grass offers a more substantial presence. This is often the look homeowners are going for when they choose this type of turf.

Exploring Bermuda Grass

Bermuda grass is another very popular choice, especially in warmer regions. It is known for its toughness, rapid growth, and excellent heat tolerance. If you’re looking for a grass that can withstand heavy use and hot summers, Bermuda grass is a strong contender.

It forms a dense, attractive turf when properly cared for.

Growth Habits of Bermuda Grass

Bermuda grass is famous for its aggressive growth. It spreads both by stolons (above-ground stems) and rhizomes (underground stems). This dual spreading mechanism allows it to quickly cover bare areas and recover from damage.

It can be so vigorous that it might even invade garden beds if not managed.

This aggressive spread is a double-edged sword. On one hand, it means you can establish a full lawn quickly and it heals fast. On the other hand, it can be harder to control if you have flower beds or other areas you want to keep separate from the lawn.

A key characteristic is its rapid establishment. If you’re starting a new lawn or overseeding, Bermuda grass will fill in much faster than many other types. This quick growth is a major benefit for those who want a full lawn in a short amount of time.

• Rhizomes and Stolons: Bermuda grass uses both underground rhizomes and above-ground stolons to spread, allowing for rapid coverage and recovery.
• Aggressive Spread: Its vigorous growth can be a challenge to contain, requiring regular edging.
• Durability: This rapid growth also contributes to its excellent wear tolerance, making it suitable for high-traffic areas.

The persistence of Bermuda grass is legendary among gardeners and homeowners. It can bounce back from drought, heat, and heavy foot traffic with remarkable speed. This resilience is a big reason why it’s so popular in sports fields and other areas that see a lot of activity.

Sunlight Requirements

Bermuda grass absolutely loves sunshine. It needs at least 6 to 8 hours of direct sunlight per day to thrive. If your yard has a lot of shade, Bermuda grass will likely struggle to maintain its health and density.

It will become thinner and more susceptible to weeds and diseases in shady areas.

This grass is a sun-worshiper. It uses sunlight to fuel its vigorous growth. Areas of your lawn that are consistently shaded will not perform well with Bermuda grass.

You’ll notice it turns brown or becomes sparse in those spots.

For example, if you have a patio that’s always covered by a roof or a large tree that blocks the sun for most of the day, Bermuda grass planted there will not look good. You’ll need to choose a grass that tolerates shade for those specific areas or find a way to increase the sunlight.

Water and Temperature Preferences

Bermuda grass is known for its excellent drought tolerance once established. While it performs best with adequate water, it can survive long periods without rain better than many other grasses. It is a warm-season grass that thrives in high temperatures, typically between 80 and 95 degrees Fahrenheit.

When the weather gets really hot, Bermuda grass often looks its best. It can go dormant and turn brown during extended droughts or periods of very cold weather, but it typically recovers well when conditions improve. This resilience to heat and drought is a significant advantage in many regions.

Consider a scenario where you might forget to water your lawn for a week or two during a heatwave. Bermuda grass is more likely to bounce back from this than, say, a fescue grass. This makes it a lower-maintenance option for watering in hot climates.

Watering Bermuda grass effectively means watering deeply and less frequently. This encourages its strong root system to grow deeper, making it even more drought-tolerant. It’s all about building that resilience from the ground up.

Texture and Appearance

Bermuda grass has a fine-textured appearance with short, narrow blades. When healthy and well-maintained, it creates a dense, carpet-like turf. This fine texture gives it a very manicured and professional look, often seen on golf courses.

The feel of Bermuda grass is also different. Its blades are much finer and softer than those of St. Augustine grass.

This can make it feel very pleasant under bare feet, offering a soft, cushiony surface.

The visual appeal of Bermuda grass is its uniformity and density. It forms a very consistent surface. This fine, uniform look is a significant part of its charm for many homeowners.

Comparing Key Differences: St Augustine Grass vs Bermuda Grass

When looking at the St Augustine grass vs Bermuda grass key differences, several factors stand out clearly. These differences impact how each grass performs, how you care for it, and where it will grow best. Understanding these distinctions is crucial for making the right choice for your lawn.

Blade Width and Texture

The most immediate visual difference is the blade width. St. Augustine grass has broad, flat blades, giving it a coarser look and feel.

Bermuda grass, on the other hand, has narrow, fine blades, resulting in a softer, more delicate appearance. This difference in texture affects the overall aesthetic of the lawn.

Imagine touching each type of grass. St. Augustine feels more substantial, like a thick, plush carpet.

Bermuda grass feels lighter and finer, like a well-kept velvety surface. This tactile difference is quite pronounced.

Here’s a quick look at the texture:

Grass Type	Blade Width	Texture
St. Augustine Grass	Wide	Coarse, flat
Bermuda Grass	Narrow	Fine, soft

This visual and tactile difference plays a big role in how people perceive the quality and feel of their lawn.

Shade Tolerance vs. Sun Dependence

One of the most significant points of comparison is their relationship with sunlight. St. Augustine grass is known for its ability to tolerate shade, making it a good choice for yards with many trees or buildings that cast shadows.

Bermuda grass, conversely, is a sun-lover and requires full sun to thrive.

If your yard has shady spots, St. Augustine is likely the better option. It can still grow and stay green in areas where Bermuda grass would falter.

This makes St. Augustine grass more versatile for yards with varied sun exposure throughout the day.

Conversely, if your yard is bathed in sunlight for most of the day, Bermuda grass will likely perform exceptionally well. It thrives under the intensity of the sun, producing a dense and resilient turf.

Here’s how they stack up:

• St. Augustine Grass: Can tolerate partial shade.

This means it can handle areas where sunlight is blocked for a portion of the day, making it suitable for under trees or on the north side of a house.

• Bermuda Grass: Needs full sun (6-8+ hours daily).

If it doesn’t get enough sun, it will become thin, weak, and prone to problems, and will likely die out in heavily shaded areas.

This difference in light requirement is often the deciding factor for homeowners when choosing between the two.

Watering Needs and Drought Tolerance

Watering requirements present another major distinction. St. Augustine grass generally needs more consistent watering and is less drought-tolerant than Bermuda grass.

Bermuda grass, once established, can withstand drier conditions for longer periods.

If you live in an area with frequent rainfall or are prepared for regular watering, St. Augustine grass can be a good choice. However, if water conservation is a priority or you experience prolonged dry spells, Bermuda grass offers better drought resistance.

Consider a hot summer with no rain for several weeks. A Bermuda grass lawn is more likely to stay green and recover quickly once water is available. A St.

Augustine grass lawn might go dormant and require more intensive watering to revive.

Statistical data often highlights this difference. Studies show that Bermuda grass can require up to 30% less supplemental irrigation in certain climates compared to St. Augustine grass.

This can translate to lower water bills and less maintenance effort.

Temperature and Climate Suitability

Both are warm-season grasses, meaning they perform best in warm climates. However, there are subtle differences in their preferred temperature ranges and cold tolerance. Bermuda grass generally thrives in higher temperatures and is more resilient to extreme heat.

St. Augustine grass also prefers warmth but can be slightly more susceptible to frost damage than some varieties of Bermuda grass. While both will go dormant in cold weather, Bermuda grass often shows a quicker return to green in the spring.

Think about the typical climate where you live. If you experience very hot summers, Bermuda grass is often the champion. If your summers are warm but not excessively hot, and you want good shade tolerance, St.

Augustine grass might be a better fit.

Spread Rate and Management

The way these grasses spread also differs, affecting how you manage them. Bermuda grass spreads very aggressively through both stolons and rhizomes, allowing it to fill in quickly and recover from damage. St.

Augustine grass spreads primarily via stolons, creating a dense turf but generally at a slightly slower pace.

Bermuda grass’s rapid spread means it can be challenging to keep out of flower beds or garden areas. You may need to edge your lawn more frequently. St.

Augustine grass is easier to contain but might take a little longer to fill in bare patches.

This aggressive spread of Bermuda grass is why it’s often used for sports fields where quick recovery from divots is essential. Its ability to grow quickly makes it ideal for high-traffic areas that need to be repaired rapidly.

Here’s a comparison of their spread characteristics:

• St. Augustine Grass: Spreads via stolons. Creates a dense turf, but growth is typically less aggressive and easier to manage in terms of containment.

This means it creeps along the surface, establishing new shoots. It’s a steady spreader that builds a thick lawn over time without being overly invasive.

• Bermuda Grass: Spreads via both stolons and rhizomes. Very aggressive and rapid spread, quick to fill in areas and recover.

The combination of above-ground and underground runners allows it to colonize an area very quickly. This makes it excellent for recovery but requires vigilance to keep it from spreading where you don’t want it.

Pest and Disease Resistance

Both St. Augustine and Bermuda grass can be susceptible to various pests and diseases, but their specific vulnerabilities differ. Generally, healthy, well-maintained lawns of either type are more resistant.

However, some common issues include chinch bugs for St. Augustine grass and grubs or mole crickets for Bermuda grass.

For example, St. Augustine grass is particularly prone to infestations by chinch bugs, tiny insects that feed on grass blades and can cause significant damage. Early detection and treatment are key to managing this pest.

Bermuda grass, while generally hardy, can sometimes struggle with fungal diseases, especially in overly wet conditions or areas with poor air circulation. It can also be a target for certain types of grubs that feed on the roots.

Understanding these potential issues helps in proactive lawn care. Knowing what to look for and how to address common problems will save you time and effort in the long run.

Choosing the Right Grass for Your Lawn

When deciding between St. Augustine grass and Bermuda grass, consider your specific lawn conditions and your personal preferences. There isn’t one “best” grass; it’s about finding the best fit for your yard and lifestyle.

Think about the amount of sun, the typical rainfall, and how you use your lawn.

Evaluating Your Lawn’s Sunlight Exposure

The amount of sunlight your lawn receives daily is perhaps the most critical factor. If large parts of your yard are shaded, St. Augustine grass is likely your best bet.

Its ability to tolerate less than full sun makes it a forgiving choice for yards with trees or buildings that block light.

If your lawn is open and receives at least 6 to 8 hours of direct sunlight every day, then Bermuda grass can flourish. Its preference for sun means it will grow thicker and healthier in these conditions.

Consider mapping out the sun patterns in your yard throughout the day. This will give you a clear picture of which areas are sunny and which are shady. This information is vital for selecting the appropriate grass type.

Here’s a simple checklist:

• Full Sun (6-8+ hours/day): Bermuda grass thrives here.

This is the ideal condition for Bermuda grass to grow its best, providing a dense and vibrant turf.

• Partial Shade (4-6 hours/day): St. Augustine grass can do well.

It can tolerate some shade but will look best with a few hours of sun.

• Heavy Shade (less than 4 hours/day): Neither grass is ideal; consider other options.

For deep shade, you might need to explore alternative ground covers or shade-tolerant plants.

Considering Water Availability and Your Commitment to Watering

Your willingness and ability to water your lawn regularly will influence your choice. St. Augustine grass requires more consistent moisture and is less forgiving during dry spells than Bermuda grass.

If you’re looking for a lower-maintenance option in terms of watering, Bermuda grass might be more suitable, especially if you live in a dry climate.

If you are someone who enjoys watering and maintaining a lush lawn, then St. Augustine grass can be very rewarding. Its broad blades can create a beautiful, thick carpet when well-hydrated.

However, if you prefer a more hands-off approach to watering, or if water restrictions are common in your area, the drought tolerance of Bermuda grass makes it a more practical choice. It can endure periods without supplemental water better than St. Augustine grass.

Assessing Your Lawn’s Use and Durability Needs

Think about how your family uses the lawn. If you have children or pets who play frequently on the grass, or if you entertain outdoors often, you’ll need a durable grass. Both grasses can be tough, but Bermuda grass is often lauded for its superior wear tolerance due to its rapid growth and recovery.

Bermuda grass can recover very quickly from heavy foot traffic, making it ideal for active yards. St. Augustine grass is also good but may take a bit longer to bounce back from significant damage.

For example, if you frequently have sports activities like soccer or frisbee in your yard, Bermuda grass’s resilience will be a major benefit. It can withstand a lot of wear and tear and still look good.

Here’s a scenario comparison:

1. A family with young children and a dog uses their backyard extensively for playing fetch and running around. They need a grass that can withstand constant activity and recover quickly from wear and tear. Bermuda grass would be a strong contender here due to its superior wear tolerance and rapid repair capabilities.
2. A homeowner wants a beautiful, dense lawn for relaxing and occasional outdoor dining. They don’t have heavy foot traffic but appreciate a lush appearance and some shade tolerance for an area under a large tree. St. Augustine grass could be a good choice, providing a soft texture and handling partial shade well.

Managing Weed and Pest Issues

While both grasses can face issues, knowing common problems can help you prepare. For St. Augustine grass, keeping an eye out for chinch bugs is important.

For Bermuda grass, grubs and fungal diseases can sometimes be a concern, particularly in less-than-ideal conditions.

Choosing a grass that naturally suits your environment can also help. For instance, a well-established Bermuda grass in full sun is less likely to be bothered by many pests and diseases compared to a struggling St. Augustine grass in too much shade.

Regular lawn maintenance, including proper mowing, watering, and fertilizing, is key to keeping any grass healthy and resistant to problems. A healthy lawn is always the best defense.

Maintenance and Care Differences

While both St. Augustine and Bermuda grass are warm-season grasses, their maintenance needs can vary. Understanding these differences will help you keep your lawn looking its best.

Mowing Preferences

Mowing height is an important consideration for both grasses, but they have different optimal ranges. St. Augustine grass generally prefers to be mowed at a higher setting, typically between 3 to 4 inches.

This higher mowing height helps the grass stay cooler and healthier, especially in hot weather, and encourages its dense growth.

Bermuda grass, on the other hand, can be mowed much shorter, often between 0.5 to 1.5 inches. This shorter mowing height allows its fine blades to create that desired carpet-like appearance. Mowing Bermuda grass too high can make it appear coarser and less uniform.

Here’s a simple guide to mowing heights:

Grass Type	Recommended Mowing Height
St. Augustine Grass	3-4 inches
Bermuda Grass	0.5-1.5 inches

It’s important to use a sharp mower blade for both types of grass to ensure clean cuts. Ragged cuts can stress the grass and make it more susceptible to disease.

Fertilization Requirements

Both grasses benefit from fertilization during their active growing season, which is typically spring through early fall for warm-season grasses. However, the timing and type of fertilizer can vary. Bermuda grass, due to its aggressive growth, may require more frequent fertilization to maintain its density and color, especially if mowed short.

St. Augustine grass also needs nutrients but may not require as much as a heavily managed Bermuda grass lawn. Over-fertilizing St.

Augustine grass can sometimes make it more susceptible to certain pests or diseases.

A common recommendation for Bermuda grass is to fertilize every 4-6 weeks during the growing season. For St. Augustine grass, fertilizing every 6-8 weeks is often sufficient, or as recommended by local extension offices based on soil tests.

Using a slow-release fertilizer is generally a good practice for both, as it provides a steady supply of nutrients without causing a sudden growth spurt that can be hard to manage.

Overseeding and Dormancy

When temperatures cool down in the fall, both St. Augustine and Bermuda grass will go dormant, turning brown. This is a natural process for warm-season grasses.

In some areas, people overseed with a cool-season grass like ryegrass to maintain a green lawn through the cooler months. Both St. Augustine and Bermuda grass can be overseeded.

However, overseeding Bermuda grass can sometimes be more challenging because its aggressive rhizomes can compete with the cool-season grass. St. Augustine grass, with its less aggressive spread, might integrate a bit more easily.

When spring arrives and temperatures warm up, both grasses will typically green up again from their roots. The transition back to green can be quite noticeable and is a welcome sign of warmer weather.

It’s important to note that if you overseed, you need to manage the transition carefully. As the warm-season grass wakes up, you’ll want to allow it to take over again, often by reducing watering to the cool-season grass.

Final Thoughts

When comparing St Augustine grass vs Bermuda grass key differences, it’s clear each has unique strengths. St. Augustine offers shade tolerance and a soft texture, while Bermuda grass provides toughness and drought resistance under full sun.

Choosing the right one depends on your specific yard conditions and how you plan to use your lawn. Pick the grass that fits your life best.

Frequently Asked Questions

Question: Which grass is better for a shady yard?

Answer: St. Augustine grass is generally better for shady yards because it has a good tolerance for areas with less direct sunlight. Bermuda grass requires full sun to thrive.

Question: Is Bermuda grass good for high-traffic areas?

Answer: Yes, Bermuda grass is excellent for high-traffic areas because it grows very aggressively and recovers quickly from damage, making it very durable.

Question: Does St. Augustine grass need a lot of water?

Answer: St. Augustine grass prefers consistent moisture and generally needs more watering than Bermuda grass, especially during hot, dry periods. It is not as drought-tolerant.

Question: Which grass has wider blades?

Answer: St. Augustine grass has wider, flatter blades, giving it a coarser appearance. Bermuda grass has narrow, fine blades.

Question: Can both grasses be overseeded in the fall?

Answer: Yes, both St. Augustine grass and Bermuda grass can be overseeded with cool-season grasses in the fall to maintain a green lawn during the colder months.