6 Best Lawn Mowers for St Augustine Grass – 2021 Reviews

St. Augustine grass renovates the garden to make it an aesthetically pleasing sight. With grass so distinctive, an investment in the right tools is a must. To care for St. Augustine grass, you need certain kinds of mower, fertilizer, and other lawn tools.

St. Augustine is a warm-season grass native to the tropical and subtropical regions. This grass has a green shade and is normally grown in coastal areas because of its tolerance to salt.

Temperature, moisture, and nutrients are the major determinants in the growth and appearance of St. Augustine grass.

How to select Best Mower for St. Augustine grass?

St. Augustine is surely a thick turf but it is not as difficult to mow as some other warm-season grasses. While choosing a lawnmower for St. Augustine grass, the choice comes down to the following two options

  1. Reel Mowers
  2. Rotary Mowers

Reel Mowers

Reel mowers, generally have 3 to 7 blades that spin vertically and employ a scissoring action to cut grass. Reel lawnmower will help you get the aesthetic look for the lawn that you have longed to desire.

Reel mowers ensure finer grass cutting without doing any damage to the roots. These mowers are easy to use and cut precisely like a pair of scissors.

Reel mowers are eco-friendly and do not require gas, oil, fumes, or charging thus saving hundreds of dollars of maintenance costs.

The decision to get a mower for your St. Augustine must depend on how big your lawn is and how much time is spent on mowing. Reel mowers are suitable for smaller lawns.

As they are man-powered, mowing bigger lawns with push reel mowers will tire one out. As per some websites, reel lawn mowers are suitable for areas 10000 sq ft or less.

If the St. Augustine lawn has inclines, lumps, divots, then get push reel mowers, to work for the uneven terrain. Reel mowers give an even cut irrespective of the imperfections of the lawn.

Reel mowers do not quite fit in the frame when cutting tall grasses. If St. Augustine grass is kept at 1 to 2 inches, reel mowers work. Taller than 1 to 2 inches, reel mowers fail to seal the deal.

Rotary Lawn Mowers

A rotary lawnmower is different than its counterpart. Blades of rotary mowers move horizontally and employ a sucking and tearing action to cut grass clippings.

Rotary lawnmowers are made for flat landscapes as pushing a real motor up the hill won’t be easy.

Horizontal mower blades need replacement or sharpening at least once a year. Rotary mowers work well for medium to large-sized lawns.

Rotary tilling mowers work like a pro in cutting taller grasses. If a gardener wants to mow St. Augustine grass above 2 ½ inches tall, a rotary mower gets the job done.

Rotary Mowers are expensive to purchase. The upkeep cost also adds fuel to the fire. These mowers need oil, charging or gas to operate which also adds to the cost.

Best Lawn Mowers for St Augustine Grass

You need to carefully select garden tools when dealing with a unique type of grass. The following mowers go the extra mile in effectively mowing st. Augustine grass based on user reviews.

1. Greenworks 16-Inch 10 Amp Corded Lawn Mower 25142

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Greenworks has been serving gardeners by providing top-grade products delivering optimum performance. Greenworks is renowned for manufacturing eco-friendly garden care tools that leave no carbon footprint.

This feature-packed 25142 16-Inch 10 Amp Corded Lawn Mower provides robust power and comes at an affordable price. Mighty 10 Amp motor supplies sufficient power to cut through thick grass.

Its 5-position cutting deck provides versatility in cutting height. Cutting height range from 1-¼  inch to 3-⅜ inch.

Made from supreme quality plastic makes it is lightweight and relatively easy to maneuver.

2-in-1 features provide mulching and discharging.

Package includes lawn mower, mulching plug, grass bag collection, and owner’s manual.

Comes with a 3-year limited warranty.


  • Item dimensions: 52.05” L x 19.21” W x 41” H
  • Item Weight: 37.5 pounds
  • Model Number: 25142
  • Cutting Deck: 16″
  • Cutting Width: 17″
  • Wheel Size: Front Wheels 6″, Rear Wheels 7″
  • Design: Corded Electric Lawn Mower


  • Cost-effective
  • Easy to use
  • Eco-friendly
  • 2-in-1 feature


  • Sensitive handle design
  • Not suitable for large-sized lawn
  • Does not work well on uneven and hilly terrain

2. Fiskars StaySharp Max Reel Mower, 18 Inch

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Fiskars has developed a name among consumers for delivering cutting-edge products.

This StaySharp Max Reel Mower is engineered for cutting the toughest grasses like St. Augustine, Zoysia, Bahia, and Bermuda.

If a gardener is looking for a mower that eliminates the need for manually sharpening the blades, then Fiskars StaySharp mower is it.

Advanced design makes it 60% easier to push. This mower saves fuel and maintenance costs as it does not require charging, oil, or gas.

It boasts twice the cutting power as a standard reel mower. This mower is ideal to handle tough turf like St. Augustine. Inset wheels expand to the mower’s full-width aid in reaching tough spots.

Easy one-touch cutting height adjustment cuts height ranges between 1″ – 4″.

Comes with a limited 3-year warranty.


  • Item dimensions: 24 x 23.5 x 14.25 inches
  • Item Weight: 51.7 pounds
  • Model Number: 362050-1001
  • Cutting Width: 18″
  • Design: Reel Mower


  • Easy to assemble
  • Mows quietly
  • Reversible grass chute
  • Works well on hilly terrain
  • Easier to push
  • Compact foldable design


  • Difficult to turn in the opposite direction
  • Quite heavy
  • Doesn’t mulch

3. Troy-Bilt 382cc 30-Inch Premium Neighborhood Riding Lawn Mower

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Troy-Bilt has been serving gardeners with top-notch gardening care tools since 1937. One such addition is this 382cc 30-inch Riding Lawn Mower.

This Riding Mower by Troy-Bilt is capable of working on medium to large-sized lawns of St. Augustine grass.

The mower boasts an Auto Choke OHV engine and 6-speed transmissions, a top forward speed being 4.25 miles per hour.

The 30″ cutting deck allows you to choose from 5 different cutting height positions. The highest cutting height is required for mowing St. Augustine grass.

30-inch single blade leaves smooth and even cut taking all the headache out of the job.

Adjustable seat and 13″ steering wheel and steering column can be set to the preferred height.

It can be easily stored in a garage or a shed owing to its small size.

Comes with a two-year limited warranty.


  • Item dimensions: 62″(L) x 34″(W) x 26″(H)
  • Item Weight: 340 lbs
  • Engine: 382cc Auto Choke OHV Engine
  • Tank Fuel Capacity: 1.3 Gallon
  • Lubrication: Splash Lubrication
  • Cutting Deck: 30″
  • Deck Material: 14-gauge steel
  • Wheel Size: Front tire 13″ x 5″, Rear tire 16″ x 6.5″
  • Design: Riding Mower


  • Cuts like a dream
  • 5 adjustable height range
  • 18″ turning radius
  • Manual power take-off
  • Mows well on the flat landscape


  • Noisy
  • Rough gear conversion
  • Not recommended for mowing inclines

4. Earthwise 1715-16EW 16-Inch 7-Blade Push Reel Lawn Mower

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Earthwise garden care tools have been in the market since 1895. The Earthwise’s dedication to bringing quality products to the consumer hasn’t changed one single bit ever since.

This heavy-duty push reel mowers are particularly engineered to cut thick grasses like Bermuda, Zoysia, centipede, St. Augustine, and Seashore paspalum. It is perfectly engineered to cut St. Augustine grass like a pro.

One of the perks of using a reel mower is that it weighs little and is easy to maneuver.

7 blade ball bearing reel makes the cutting precise and less strenuous. 7 blade models are ideal for cutting thick turfs like St. Augustine grass.

Alloy steel blades require minimal sharpening. Unbreakable Steel Side Plate and knife bed blade are a major plus. Supreme quality manufacturing adds years to the lifetime of the mower.

The man-powered Earthwise 1715-16EW requires no gas, oil, or charging, therefore, a preferable option for those who care about the environment.

Adjustable height mechanism cuts the height range from 0.5″ to 2.5″.

Products are shipped fast and assembling is not a hassle.

Comes with a two-year warranty.


  • Item dimensions: 27 x 23 x 47 inches
  • Item Weight: 26 pounds
  • Model Number: 1715-16EW
  • Cutting Width: 16″
  • Wheel Size: 10″ Composite Wheels
  • Cutting heights: 1/2″ – 2 1/2″


  • Lightweight
  • Easy assembling
  • Saves fuel and maintenance cost
  • Comfortable handling
  • Alloy Steel blades construction
  • Low maintenance
  • Cheaper than a gas-powered mower
  • Fast Shipping & Easy storage


  • Not recommended for taller grasses
  • Does not possess mulching and bagging capabilities
  • Pushing requires effort

5. Honda HRX217K5VYA 187cc Gas 21 in. 4-in-1 Versamow System Lawn Mower with Roto-Stop and MicroCut Blades 660410

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Honda’s name is always painted in a good light when it comes to delivering consumer-friendly products. Honda has done it again with this gas-powered Roto-stop lawnmower.

This mower is ideal for those gardeners that have rocky terrain. The installed Roto-stop system by Honda automatically stops the blades from moving when came in contact with rocks or any small objects.

This self-propelled Honda lawnmower has built-in speed control that lets you set the pace you want.

This mower features a twin blade design that promises finer grass clippings to give your garden a manicured look.

21-inch deck with various cutting height adjustment makes cutting thick turfs like St. Augustine a piece of cake.

This mower can be folded easily and horizontally stored.


  • Item Weight: 105
  • Deck size: 21″
  • Engine: 187 cc
  • Design: Gas-powered self-propelled lawnmower


  • A quieter gas-powered lawnmower
  • Mows thicker grass patches efficiently
  • Roto-Stop system
  • Fit for rocky terrain


  • Difficult to get used to speed handles


How tall can St. Augustine grass grow?

St.Augustine grass can grow up to 12 inches tall, if not mowed. It may develop seeds and flowers if the grass grows up to the said height.

How short should I cut my St Augustine grass?

The right mowing height of St. Augustine grass is between 1 to 3 inches tall. There is a risk of mowing down grass stems if the grass is above 3 inches tall.

Should St. Augustine be scalped?

Lawn scalping is done to promote green-up and remove straw-colored turf. It is recommended to not scalp warm-season grasses during active growth season. Be cautious while scalping an st. Augustine lawn as not to overdo it.



Many things must be taken into account while choosing a lawnmower for St. Augustine lawn. If you want your small-sized lawn to be visually pleasing, choose a reel mower. Earthwise 1715-16EWand Fiskars stay sharp max reel mower works great for the small-sized lawn. If you want a corded lawn mower, then Greenworks dethatcher and Greenworks 10 Amp mower is your answer. Honda gas-powered mower is a sound choice for rocky terrain. For large size st. Augustine lawns, Troy-Bilt riding lawn mower seals the deal.

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