St. Augustine grass has thick blades and dense growth that can challenge a weak lawn mower. The right self-propelled mower can make regular lawn care easier while giving you better control over the cutting height. Standard St. Augustine varieties generally need a mowing height of about 3.5 to 4 inches, so a mower with a suitable height range can help prevent scalping and turf stress.
A strong mower should also handle dense growth without losing cutting power. Rear-wheel drive can improve traction, while a wide deck can reduce the number of passes across your lawn. Mulching and bagging options can also help manage heavy clippings after fast growth.
This guide covers five of the best self propelled lawn mowers for St Augustine grass. We considered cutting power, height adjustment, traction, deck size, mulching performance, and ease of use. These picks can help you maintain thick, healthy turf with less effort.
5 Best Self Propelled Lawn Mowers For St Augustine Grass
| Image | Title | Best For | Link |
|---|---|---|---|
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BLACK+DECKER BEMW213 Electric Lawn Mower | Corded design for unlimited runtime with 13 Amp motor for thick St. Augustine grass. more | View on Amazon |
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Greenworks 60V Brushless Cordless Lawn Mower | High-efficiency 60V motor providing consistent power and long runtimes for dense turf. more | View on Amazon |
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American Lawn Mower 2002-20 Reel Mower | Eco-friendly precision cutting for small, well-manicured St. Augustine lawns. more | View on Amazon |
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Litheli 40V Cordless Brushless Lawn Mower | Lightweight and highly maneuverable with brushless efficiency for standard maintenance. more | View on Amazon |
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Scotts 716-18S Push Reel Mower | 7-blade reel provides a scissor-like cut perfect for maintaining lush green health. more | View on Amazon |
Detailed Reviews
Selecting the best mower for St. Augustine grass involves balancing power, cutting height, and weight to ensure you don’t scalp the lawn or struggle with thick patches. These selections focus on units that offer robust motor performance and versatile height settings, essential for maintaining the health of deep, creeping turf varieties commonly found in warm-weather climates.
| POWER | 13 Amp electric motor |
| CUTTING WIDTH | 20 inches |
| HEIGHT SETTINGS | 6 settings (1.5″ to 4″) |
The Black+Decker corded electric mower is an excellent choice for homeowners with smaller to medium lawns who want the reliability of an unlimited power source. Its 13 Amp motor provides significant torque, making it capable of slicing through dense St. Augustine grass without the fading power associated with battery-based systems.
The winged blade design enhances grass collection, keeping your lawn free of clippings that could otherwise build up and choke out new growth. With tool-free height adjustment, you can easily shift between the taller settings recommended for St. Augustine health to a lower cut when needed.
- Unlimited runtime for continuous mowing
- Powerful motor handles thick grass with ease
- Winged blade improves collection efficiency
- Compact storage design saves garage space
- Corded design limits mobility range
- Requires a suitable outdoor extension cord
Homeowners who want high, consistent power and do not mind managing a power cord for their lawn care sessions.
| POWER | 60V Brushless system |
| CUTTING WIDTH | 17 inches |
| RUNTIME | Up to 80 minutes (dual batteries) |
The Greenworks 60V system is a powerhouse for cordless users, offering a significant advantage in runtime thanks to its included dual-battery bundle. The brushless motor ensures that the machine runs cooler and lasts longer, providing the consistent performance needed to maintain thick, healthy St. Augustine patches without struggling under load.
Its lightweight, 17-inch rust-resistant deck makes it incredibly maneuverable, allowing you to navigate tight corners and uneven garden terrain with ease. This combination of portability and power makes it an ideal investment for anyone looking to transition from gas-powered tools to a cleaner, more efficient battery-operated ecosystem.
- Exceptional runtime with dual batteries
- High-efficiency brushless motor
- Lightweight design for effortless navigation
- Compatible with other 60V Greenworks tools
- 17-inch deck requires more passes on large lawns
- Charging multiple batteries takes time
Gardeners seeking a cordless solution who want to minimize noise while maintaining the ability to tackle challenging, thick grass sections.
| CUTTING WIDTH | 20 inches |
| BLADE COUNT | 5-blade reel |
| HEIGHT RANGE | 2″ to 3″ |
For those who prefer a quiet, eco-friendly approach to lawn care, the American Lawn Mower 20-inch reel mower is a classic choice. Its wide cutting path covers more ground quickly, and the 5-blade precision reel provides a clean scissor-like cut that encourages lush, thick growth in St. Augustine lawns by cleanly slicing blades instead of tearing them.
The inclusion of a grass catcher bag helps keep your turf clean, making it a low-maintenance, reliable tool for smaller spaces. Because it requires manual effort, it is most effective on flatter lawns, but its ergonomic handle design makes the pushing experience surprisingly comfortable for regular trimming.
- Quiet and eco-friendly operation
- No fuel, cords, or batteries required
- Wide 20-inch path for efficient cutting
- Grass catcher included for cleaner results
- Requires significant physical effort
- Not suitable for tall or overgrown grass
Homeowners with small, flat lawns who want a quiet, zero-emission tool that promotes healthy turf through precise blade cuts.
| POWER | 40V Brushless system |
| WEIGHT | 27.1 pounds |
| HEIGHT SETTINGS | 6 settings (0.98″ to 2.95″) |
The Litheli 40V cordless mower is a lightweight powerhouse, weighing just over 27 pounds, which makes it an exceptional option for users who prioritize ease of use and maneuverability. Its efficient brushless motor provides consistent power that holds up well during standard maintenance sessions for St. Augustine lawns.
With a 16-inch cutting width and a large capacity grass catcher, this unit is designed to minimize the number of trips you need to make to the compost pile. It is a fantastic, versatile choice for those who want a reliable, modern mowing experience without the bulkiness associated with traditional heavier machinery.
- Ultra-lightweight and easy to handle
- Efficient brushless motor reduces maintenance
- Includes two 4.0Ah batteries for better runtime
- Large grass catcher capacity
- 16-inch deck is best for smaller lawns
- Max height is slightly lower than some competitors
Older homeowners or those seeking an extremely lightweight, maneuverable electric mower that is easy to store and operate.
| CUTTING WIDTH | 18 inches |
| BLADE COUNT | 7-blade reel |
| HEIGHT RANGE | 1″ to 3″ |
The Scotts 716-18S reel mower stands out for its high-density, 7-blade ball-bearing system, which delivers a remarkably clean, professional-looking finish on a lawn. Designed specifically for those who care about precision, the heat-treated alloy steel blades stay sharp throughout the season, ensuring your St. Augustine grass is always trimmed accurately to promote overall lawn density.
Its manual push design is bolstered by dual tracking wheels, which improve stability and make it significantly easier to operate than lower-tier reel mowers. If you enjoy the meditative aspect of gardening and have a smaller area, this machine provides the exact, healthy cut required to keep St. Augustine looking at its absolute best.
- 7-blade reel for a finer, scissor-like cut
- Quality heat-treated alloy steel blades
- Smooth ball-bearing operation
- Easy to assemble and maintain
- Manual operation is physically demanding
- Less effective on tall, thick overgrown grass
Detail-oriented gardeners who want the highest quality cut for a small lawn and enjoy the hands-on approach to maintenance.
Complete buying guide for Best Self Propelled Lawn Mowers For St Augustine Grass
Understanding Cutting Height
St. Augustine grass thrives when kept slightly taller than other varieties, generally between 3 and 4 inches. Ensure the mower you choose offers easy, multi-level height adjustment so you don’t accidentally scalp the lawn, which can leave it vulnerable to weeds and disease.
Power and Torque Needs
St. Augustine has a thick, dense growth habit that can be tough on lower-powered mowers. Look for brushless motors in cordless units or high-amp corded models to ensure consistent torque so the mower doesn’t bog down in thick patches.
Maneuverability and Weight
Since you may be mowing your lawn frequently during the growing season, a lightweight model is often preferable. Consider the weight of the mower and how easily it can turn in tight corners, especially if your yard has landscaping or intricate borders.
Frequently Asked Questions
How often should I mow St. Augustine grass?
During the peak growing season, St. Augustine typically requires mowing every 7 to 10 days. Always follow the one-third rule, ensuring you never remove more than one-third of the grass blade in a single mowing session.
Is a reel mower better for St. Augustine?
Reel mowers provide a cleaner, “scissor-like” cut that is excellent for lawn health, but they require consistent maintenance and sharp blades. They are highly effective for smaller, manicured St. Augustine lawns.
Can electric mowers handle thick St. Augustine?
Yes, modern electric mowers with brushless motors are specifically designed to handle thick turf. By maintaining sharp blades and keeping your grass length in check, an electric unit is more than sufficient for the job.
Conclusion
Choosing the right mower for St. Augustine grass is an investment in your lawn’s long-term health and vitality. Whether you opt for the constant, powerful performance of a corded model or the convenience of a modern cordless system, prioritizing consistent blade sharpness and appropriate cutting heights will keep your yard looking vibrant throughout the year.