A good lawn mower is key to keeping St. Augustine grass healthy and neat. This type of grass is thick and coarse, requiring a mower that can handle its unique texture without damaging it. Choosing the right mower means getting clean cuts and avoiding scalping, which can hurt your lawn’s growth.
There are various lawn mower types, like gas, electric, and manual. Each has strengths depending on lawn size and how often you mow. For St. Augustine grass, the blade sharpness, cutting height options, and mower power are especially important. Mowers with adjustable height and strong, sharp blades help maintain the grass at its best.
We focused on these critical features when testing several models. Our goal was to find mowers that provide easy handling and precise cutting for St. Augustine grass. In the next section, we review the best lawn mowers that meet these standards.
Best Lawn Mowers for St Augustine Grass
We have tested and researched several lawn mowers to find the ones that work best for St Augustine grass. Our list focuses on mowers that provide good cutting power, easy handling, and reliable performance for this specific type of lawn.
Southern Ag Atrazine Weed Killer

This product works well to control broadleaf weeds and some grasses in St. Augustine lawns, making it a solid choice for targeted weed control.
Pros
- Effective on tough weeds like Dollar Weed
- Covers a large area with just one quart
- Controls both grassy and broadleaf weeds
Cons
- Needs careful application to avoid overlap
- Not suitable for hose-end sprayers
- Best results require early spring use
We found this herbicide easy to use when spot-spraying weeds in the yard. It’s especially good for handling stubborn weeds like Dollar Weed, which many other products didn’t control well.
Applying it early in the season worked best for us. The coverage is good for the price, and we liked how it handled both broadleaf and grassy weeds without harming the St. Augustine grass.
Be cautious with the spray application, though. Overlapping spray areas can cause damage, and using a hose-end sprayer is not recommended. Using a regular sprayer allowed us better control on our lawn.
LawnMaster 24V Mower & Trimmer Combo

This combo is a solid choice for folks with small to medium St. Augustine lawns who want cordless convenience and trimming flexibility.
Pros
- Lightweight and easy to handle
- Includes two batteries for extended use
- Converts from mower to edger for precise trimming
Cons
- Cutting bag fills quickly, needs frequent emptying
- Battery life drops fast under heavy use
- Assembly is a bit tricky at first
We found that the LawnMaster mower feels light and moves smoothly across dense St. Augustine grass. The cordless setup gives us freedom around the yard without worrying about cords or gas. It’s handy that the trimmer switches to an edger to clean up borders neatly.
However, the grass bag tends to fill up fast, making us stop often to empty it. The battery runs close to 20 minutes, which is enough for smaller yards but less for bigger patches. Setting it up took some patience because parts didn’t snap together easily and the manual could be clearer.
Overall, it works fine on St. Augustine grass, especially for people who like a battery-powered tool combo. Just expect to take little breaks between jobs and double-check the battery charge to avoid surprises.
LawnMaster 16-Inch Push Reel Mower

This mower is a good choice if you want a quiet, eco-friendly way to cut your St. Augustine grass without gas or batteries.
Pros
- Cuts cleanly without tearing the grass blades
- Easy to steer with front wheels and lightweight design
- Simple to adjust cutting height
Cons
- Not ideal for very tall or thick weeds
- Limited cutting width means more passes on large yards
- Requires some assembly and effort to push
We found the LawnMaster reel mower cuts our St. Augustine grass with a scissor-like action that helps keep the lawn healthy. It feels smooth to push and maneuvers well around flower beds and trees thanks to the 10-inch front wheels. The no-motor design means no noise or fumes, which is a nice break from gas mowers.
Adjusting the height is straightforward and lets us keep the grass at the perfect length. The 16-inch deck is a bit small for bigger yards, so we spend a little more time mowing. Also, this mower struggles a bit with thicker patches or taller weeds, so it works best if you keep your lawn well maintained.
Putting it together took some care, especially loosening the wingnuts to fit the handle. Once assembled, cleaning the blades is easy with a nearby brush. This mower feels sturdy and fits well for anyone wanting a simple, manual mower for St. Augustine grass.
American Lawn Mower Company 18-Inch 5-Blade Reel Mower

This mower is a solid choice for keeping St Augustine grass neat with a quiet, eco-friendly cut that doesn’t harm the lawn.
Pros
- Cuts cleanly with 5 sharp blades
- Adjustable height fits different grass lengths
- Lightweight and easy to push
Cons
- Can be tough on uneven or rocky yards
- Requires regular blade maintenance
- Grass catcher sometimes clogs with thick clippings
We found the 18-inch cutting width moves quickly across medium-sized lawns. The cut feels smooth and precise, unlike noisy gas mowers that can tear fragile St Augustine grass.
Adjusting the height is simple and lets you keep your lawn just right, whether you want a low trim or a bit taller during warmer seasons. The handle grip is comfy, making it easier to mow for longer stretches without arm strain.
On the downside, if your yard has lots of slopes or rough spots, this mower struggles a bit with traction and control. Also, some regular sharpening keeps the blades working well for clean cuts. The grass catcher works well but fills fast during thick growth, so empty often.
Overall, this manual reel mower gives a quiet, eco-friendly way to care for St Augustine grass without pushing too hard.
SodPods St. Augustine Grass Plugs

If you need a simple way to fill bare spots in your St. Augustine lawn, these plugs work well and are easy to plant.
Pros
- Healthy, green plugs arrive ready to grow
- Well-packaged, making handling easy
- Good drought and heat tolerance for warm climates
Cons
- Cannot be shipped to California or Arizona
- Takes some patience to fully fill in bare spots
- Slightly heavier to handle when shipping
We found the SodPods come in a neat package, which keeps each plug moist and healthy. The size of the plugs is larger than other options, helping them take root faster in our yard. It was easy to separate each pod and plant in the spots that needed repair.
The grass grew steadily and started blending in with our existing lawn after a few weeks. Its shade tolerance helped in areas where the sun doesn’t hit all day, and the thick blades gave us a nice carpet-like look once matured.
Overall, this was a practical solution for fixing patchy St. Augustine grass without the mess of full sod. Just be sure to plan ahead if you live in restricted shipping areas.
Scotts EZ Patch Lawn Repair for St. Augustine

This lawn repair mix can help speed up bare spot recovery on St. Augustine grass if you keep your lawn consistently moist.
Pros
- Helps bare spots recover about 60% faster
- Mulch holds moisture well around the grass roots
- Easy to spread and covers a decent area
Cons
- Does not contain grass seed, so new grass won’t grow on its own
- Works best with existing grass or plugs, not on bare dirt
- Needs regular watering for good results
We found this product to be useful when patching spots that already had some St. Augustine grass nearby. Its mulch holds water well, which is good for this type of grass because it likes moisture.
Since it doesn’t have any seed, it’s not a full lawn fixer by itself. You need to either have runners growing in or use plugs. We had to stay on top of watering to see any improvement.
Results don’t happen overnight, but in about two weeks, bare spots looked healthier. If you want a quick fix that actually promotes growth, this can work, but patience is key.
LawnMaster Reel Mower

This mower is a solid choice for small yards with St. Augustine grass if you want a clean cut without fussing with gas or batteries.
Pros
- Cuts grass like scissors, which keeps the lawn healthy
- Lightweight and easy to push around tight spots
- Adjustable cutting heights for better control
Cons
- Not ideal for very tall or thick weeds
- Requires physical effort since it has no motor
- Small cutting width means longer mowing time for bigger yards
We found the LawnMaster easy to handle, especially in corners and narrow paths. The grass looked neatly trimmed after using it, which is great for keeping St. Augustine blades healthy.
The lack of a motor means there’s no noise or fumes, making it an eco-friendly option. However, pushing it takes effort, and the mower struggles with tough patches or thicker weeds.
If your lawn is on the smaller side and mostly soft grass, this reel mower works well. Larger or weedy lawns might demand something stronger.
BLACK+DECKER 3-in-1 Corded Lawn Mower

This mower is a solid choice for small St. Augustine lawns because it combines mowing, trimming, and edging in one light tool.
Pros
- Lightweight and easy to carry
- Switches between mower, trimmer, and edger quickly
- Cord retention stops accidental unplugging
Cons
- Short 12-inch cutting width slows mowing bigger yards
- Requires an extension cord (not included)
- Limited cutting height adjustment
We found the BLACK+DECKER 3-in-1 mower very handy for our tight, uneven spots with St. Augustine grass. The lightweight design made it easy to push around, even on slopes. Switching between the mower and trimmer without extra tools saved us time on edges and around flower beds.
Because it has a cord, we never had to worry about battery life. The built-in clip keeps the cord from unplugging, which was reassuring, but you do need to get your own extension cord. The 12-inch cutting width means it’s best for smaller yards; bigger lawns took more passes than we hoped.
Adjusting the cutting height was a bit limited, so it’s ideal if you want one fixed grass length. For St. Augustine grass, it cut cleanly without tearing the blades, which helped prevent stress to the lawn during heat. Overall, it’s a practical tool for maintaining smaller St. Augustine patches.
American Lawn Mower Company Electric Push Mower

This mower is a solid choice for anyone wanting a simple, quiet way to keep St Augustine grass neat without dealing with gas.
Pros
- Easy to push and maneuver, even in tight spots
- No fumes or gas, so it’s cleaner for the environment
- Good cutting performance for small to medium yards
Cons
- Cutting width is a bit narrow, so mowing larger yards takes longer
- Grass bag fills up quickly and needs frequent emptying
- Height adjustment could be easier and offers limited range
We found this mower light and very manageable, which made navigating our uneven lawn much less tiring than heavier gas mowers. The electric motor stayed strong throughout the mowing session and handled the thick St Augustine blades well.
Switching between mulching or bagging was smooth, and it helped keep the yard tidy with less effort. We liked how quiet it ran compared to other gas lawn mowers we used before. This made working outdoors more enjoyable.
However, the 19-inch cutting width means it takes extra passes for bigger lawns. Emptying the rear bag often interrupted our flow. Also, adjusting the height was a little tricky to get just right for St Augustine’s thick, low growth habits. Still, it met our basic lawn care needs efficiently.
For an affordable, eco-friendly mower to maintain a medium or smaller St Augustine lawn without fuss, this model is worth a look.

