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Best mower for bermuda grass

Extension guidance puts bermudagrass at 1 to 2 inches. Most cordless mowers cannot get there, and their spec sheets say so.

By Sawyer V.Published Last updated

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Electric lawn mower on a cut lawn

We have not tested these units. Every spec on this page comes from the manufacturer's own documentation and is linked to it. Every computed figure is arithmetic you can redo. Prices are checked daily — last verified January 1, 1970. Here is exactly how we pick.

Quick picks

Ranked on the published specs and the arithmetic below. Tap any row to jump to the full write-up. We have not tested these units -- here is exactly how we pick.

#ProductBest forScorePrice
1
No photo
EGO Power+ 21" Select Cut LM2135SP
The most watt-hours in the box of any flagship walk-behind here, on the platform with the widest tool range to grow into.
Best overall
9.1
2
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Greenworks 40V 20" Push LM2054
40 minutes on a 160Wh pack and 57.5 lb to push -- the honest answer for a third of an acre and nothing more.
Best for small yards
8.0
3
No photo
Greenworks 80V 21" 4-in-1 LM2108S
The only mower here that publishes motor wattage, blade RPM, weight and an acreage rating -- and the only one whose battery warranty matches its tool warranty.
Best published spec sheet
8.4

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Bermudagrass is the one common lawn grass where the mower's lowest setting is a buying decision rather than a detail. Extension guidance puts it at 1 to 2 inches, and a surprising number of cordless mowers cannot physically get there — which you can check before buying, because the good ones publish the range.

The short answer

Clemson Cooperative Extension gives bermudagrass a 1 to 2 inch mowing height and suggests starting at 1.25 to 1.5 inches. Of the cordless mowers we hold published cut heights for, the EGO LM2135SP is the only one that reaches a full 1 inch (1 to 4 in, 8 positions). The Greenworks LM2054 covers 1.2 to 3.6 in and the LM2108S covers 1.38 to 4.0 in — both usable, both unable to go as low.

What extension guidance actually says

Clemson's bermudagrass maintenance factsheet gives a range of 1 to 2 inches, recommends starting at "1¼ to 1½ inches" and adjusting from there based on how the lawn looks, and notes that cultivars adapted to partial shade may do better at 2 inches. It is also direct about the equipment limit: "Mowing heights below 1 inch will require a reel type mower to achieve satisfactory results."

That single sentence draws the boundary of this page. Below an inch, no rotary mower — cordless or otherwise — is the right tool. Between one and two inches, the question is simply whether the deck adjusts that low, and three of the mowers in our registry publish an answer.

Published cut heights against the target band

MowerPublished cut heightReaches 1 in?Reaches 1.25-1.5 in start?
EGO LM2135SP1-4 in, 8 positionsYesYes
Greenworks LM20541.2-3.6 in, 7 positionsNo (1.2 in floor)Yes
Greenworks LM2108S1.38-4.0 in, 7 positionsNo (1.38 in floor)Only at the top of it
Ryobi RY40HPLM01BNot published in the specs we holdUnknownUnknown
Toro 21356Not published in the specs we holdUnknownUnknown
Kobalt 80V self-propelledNot published in the specs we holdUnknownUnknown

Cut heights transcribed from the manufacturers' product pages. The target band is from Bermudagrass Maintenance, Clemson Cooperative Extension, fetched 9 September 2026. "Not published" means the maker does not state a cut-height range on the page we transcribed — not that the mower lacks one.

Half the market does not publish this. Three of the six cordless mowers in our registry state a cut-height range on their product pages and three do not. For a cool-season lawn cut at 3 inches that hardly matters, because every mower reaches 3 inches. For bermudagrass it is the specification that decides whether the mower can do the job at all.

1. EGO LM2135SP — the only one that reaches a full inch

One to four inches across eight positions, a 21 inch deck, up to 7.0 ft-lbs of cutting torque, a 56V 7.5Ah pack (420Wh) and a published self-propel range of 0.9 to 3.1 mph.

The eight positions matter as much as the floor. Bermudagrass is usually managed by nudging the height rather than setting it once — down in early summer as growth accelerates, up in heat or drought, which Clemson recommends explicitly. Eight steps across three inches is a finer ladder than seven steps across 2.4 or 2.6.

Its variable drive speed is the second bermudagrass-specific advantage: dense warm-season turf loads a deck more than thin fescue does, and the ability to slow down is what keeps the cut clean instead of ragged.

#ad Check the EGO Power+ 21" Select Cut LM2135SP price on Amazonhow we're funded.

2. Greenworks LM2054 — lightest, and inside the band

A 20 inch deck, 1.2 to 3.6 inches over seven positions, 3200 RPM blade speed, 57.5 lb, a 40V 4.0Ah pack (160Wh) and up to 40 minutes of claimed runtime on up to a third of an acre.

A 1.2 inch floor sits comfortably inside Clemson's 1 to 2 inch range and just below their suggested 1.25 inch starting point, which makes this a genuinely usable bermudagrass mower for a small lawn.

It is a push mower, and 57.5 lb is the lightest in our registry — which is the right shape for a small, flat, densely-turfed lawn. On 160Wh, a third of an acre is a claim to treat with the usual caution about dense grass.

#ad Check the Greenworks 40V 20" Push LM2054 price on Amazonhow we're funded.

3. Greenworks LM2108S — capable, but the floor is high

Twenty-one inches, 1.38 to 4.0 inches over seven positions, 3200 RPM, a 4-in-1 deck, 80V 4.0Ah (320Wh), 75 lb, and a four-year warranty on both tool and battery — the longest of the three.

The honest problem for this specific job is the 1.38 inch floor. That is inside Clemson's 1 to 2 inch range, but it lands at the top of their recommended 1.25 to 1.5 inch starting band, so you have no room to go lower if the lawn wants it.

Where it earns a place is on a larger bermudagrass lawn managed at the upper end of the range, or on a mixed property with shade-adapted cultivars that Clemson notes may perform better at 2 inches.

#ad Check the Greenworks 80V 21" 4-in-1 LM2108S price on Amazonhow we're funded.

Cutting low means cutting often

The lower you mow, the less leaf there is to remove before you break the one-third rule — never take more than about a third of the blade in a single cut. Here is what that does to your schedule.

The arithmetic — Cut height against mowing interval
Cut at 1.5 in: one-third of 1.5 in = 0.5 in of growth
So you mow when it reaches 2.0 in.
Cut at 3.0 in: one-third of 3.0 in = 1.0 in of growth
So you mow when it reaches 4.0 in.
Same growth rate, half the interval.
Low-cut bermudagrass is a twice-a-week lawn in peak season,
where a 3 in fescue lawn is a once-a-week lawn.

Which is why runtime and charge time matter more on a bermudagrass lawn than the deck size does. Our how often to mow page covers the scheduling, and mowing height guide covers the heights for other species.

The blade is half the job

Clemson's factsheet recommends a sharp blade and a mulching-type mower, with sharpening roughly monthly through the growing season. Bermudagrass is a tough, wiry grass and a dull blade tears rather than cuts, leaving whitened, frayed tips that give a low-cut lawn a gray cast within a day. Sharpening intervals and blade types are in mower blades guide.

Who should skip all three

  • Anyone maintaining below 1 inch. Clemson is explicit: that is reel mower territory, and no rotary mower on this page changes it.
  • Cool-season lawns. Kentucky bluegrass, fescues and ryegrass are cut far higher — see grass types guide.
  • Very uneven ground. Low cut heights on undulating soil scalp. Fix the contour, or mow higher and accept it.

What we cannot tell you

We have not cut bermudagrass with these mowers. Three of the six cordless mowers in our registry publish no cut-height range at all, so this page cannot rank them for this job either way. No maker publishes a runtime figure measured in dense warm-season turf — the runtime claims are unqualified — and none publishes a scalping tolerance or a deck float specification, which is what actually determines how a low cut behaves on uneven ground.

The picks in full

Specs are the manufacturer's own and linked to the page they came from. Prices come from a live daily check; where we have no verified price we say so rather than print a stale one.

1. Best overall

EGO Power+ 21" Select Cut LM2135SP

EGO · EGO 56V ARC Lithium · Our score 9.1/10

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The most watt-hours in the box of any flagship walk-behind here, on the platform with the widest tool range to grow into.

Published specs

Deck21 in
Cutting torqueUp to 7.0 ft-lbs
Battery included56V 7.5Ah
Cut height1-4 in, 8 positions
Self-propel speed0.9-3.1 MPH
Runtime claimUp to 60 min
Warranty5-yr tool / 3-yr battery

Source: EGO POWER+ 21" Select Cut System (LM2135SP), egopowerplus.com

Our arithmetic — Nameplate watt-hours
420Wh

56V x 7.5Ah = 420Wh, using EGO's advertised pack voltage.

What the numbers favor

  • 420Wh in the box -- the largest included pack of any flagship walk-behind on this page
  • Eight cut-height positions from 1 to 4 in, the widest published range here
  • Three interchangeable lower blades (mulching, high-lift bagging, extended runtime)
  • 5-year tool warranty, the longest published on this page

What they don't

  • EGO publishes torque (7.0 ft-lbs), not motor wattage, so it cannot be compared directly against Greenworks' 1500W figure
  • The 7.5Ah pack that earns the runtime claim is also the expensive one to replace
Skip this one if

your yard is under a quarter acre. You would be paying for 420Wh of headroom you will never discharge, and a 20 in push mower cuts the same grass.

How it scores

Included energy9.5
Cut adjustability9.0
Platform range9.5
Warranty9.5
Value per watt-hour7.5

Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.

2. Best for small yards

Greenworks 40V 20" Push LM2054

Greenworks · Greenworks 40V · Our score 8.0/10

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#ad No verified live price right now, so we show none rather than a stale one. How we're funded.

40 minutes on a 160Wh pack and 57.5 lb to push -- the honest answer for a third of an acre and nothing more.

Published specs

Model / SKULM2054 / 2549902
Deck20 in
Max blade speed3200 RPM
Battery included40V 4.0Ah
Cut height1.2-3.6 in, 7 positions
Runtime claimUp to 40 min
Weight57.5 lb
Rated forUp to 1/3 acre
Warranty3-yr tool / 3-yr battery

Source: 40V 20" 4-in-1 Push Lawn Mower (LM2054), greenworkstools.com

Our arithmetic — Nameplate watt-hours
160Wh

40V x 4.0Ah = 160Wh. Note it claims 40 minutes on 160Wh where the 80V flagship claims 33 minutes on 320Wh -- a 20 in deck and no self-propel drive motor is why.

What the numbers favor

  • Lightest published weight on this page at 57.5 lb, and the only sub-60 lb mower here
  • Claims 40 minutes from 160Wh -- the best published minutes-per-watt-hour of any mower on this page
  • Same 3200 RPM blade speed as the 80V flagship
  • 4-in-1 deck at the entry price

What they don't

  • Push only -- no drive assist on any slope
  • 1.2 in minimum cut height is lower than most cool-season lawns should ever be cut
  • 120-minute recharge, three times the 80V model's 40 minutes
Skip this one if

your lawn is over a third of an acre or has any real slope. Greenworks rates it to 1/3 acre and you will be pushing all 57.5 lb of it up the hill yourself.

How it scores

Included energy5.0
Minutes per watt-hour9.5
Weight9.0
Recharge speed5.0
Value per watt-hour9.0

Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.

3. Best published spec sheet

Greenworks 80V 21" 4-in-1 LM2108S

Greenworks · Greenworks 80V · Our score 8.4/10

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#ad No verified live price right now, so we show none rather than a stale one. How we're funded.

The only mower here that publishes motor wattage, blade RPM, weight and an acreage rating -- and the only one whose battery warranty matches its tool warranty.

Published specs

Model / SKULM2108S / 2550402
Deck21 in
Max blade speed3200 RPM
Battery included80V 4.0Ah
Cut height1.38-4.0 in, 7 positions
Runtime claimUp to 33 min
Weight75 lb
Rated forUp to 1/2 acre
Warranty4-yr tool / 4-yr battery

Source: 80V 21" 4-in-1 Self-Propelled Lawn Mower (LM2108S), greenworkstools.com

Our arithmetic — Nameplate watt-hours
320Wh

80V x 4.0Ah = 320Wh, using Greenworks' advertised pack voltage.

What the numbers favor

  • 4-year battery warranty -- a year longer than EGO's 3-year, on the component that fails first
  • Publishes blade RPM, weight and acreage rating; the other two brands publish none of the three
  • 40-minute recharge on the included charger, the fastest published here
  • 4-in-1 deck adds turbo leaf pickup on top of mulch, bag and side discharge

What they don't

  • 320Wh included, the least of the three flagships -- and the 33-minute runtime claim reflects that
  • 75 lb is the only published weight here, and it is not light
Skip this one if

you want one battery to finish a half-acre without a swap. Greenworks rates the mower for 1/2 acre but claims only 33 minutes on the included pack; those two numbers only reconcile if you buy a second battery.

How it scores

Included energy6.5
Published spec depth10.0
Warranty9.0
Recharge speed9.5
Value per watt-hour8.0

Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.

Where to buy the tools on this page

Every link below is an Amazon affiliate link. We show no price we have not verified today, so where there is no live figure the link says "check price" and takes you to the listing to read it there.

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Common questions

What is the best mower for bermuda grass?
Of the mowers we hold published cut heights for, the EGO LM2135SP is the only one that reaches a full 1 inch -- its range is 1 to 4 inches over 8 positions. The Greenworks LM2054 starts at 1.2 inches, which is inside Clemson's recommended 1 to 2 inch band; the Greenworks LM2108S starts at 1.38 inches, which only just fits the suggested 1.25 to 1.5 inch starting point.
How short should bermuda grass be cut?
Clemson Cooperative Extension gives 1 to 2 inches as the range, and suggests starting at 1.25 to 1.5 inches and adjusting from there. It also notes that heights below 1 inch require a reel mower, because a rotary mower cannot cut satisfactorily that low.
Do I need a reel mower for bermuda grass?
Only below 1 inch. Clemson states plainly that "mowing heights below 1 inch will require a reel type mower to achieve satisfactory results." Between 1 and 2 inches a rotary mower is fine, provided it adjusts that low.
Why does my mower scalp bermuda grass?
Usually because the cut height is set below what the ground contour allows, not because the mower is faulty. Bermudagrass grows on undulating ground and a fixed deck follows the wheels, so the blade meets high spots. Raise a notch and check the wheels are all set to the same position.
How often should bermuda grass be mowed?
Often enough that you never remove more than about a third of the leaf in one cut, which in peak growth means more frequently than a cool-season lawn. Clemson also recommends a sharp blade, with sharpening roughly monthly through the growing season.

Sources

  1. Bermudagrass Maintenance, Clemson Cooperative Extension HGIC
  2. EGO POWER+ 21" Select Cut System (LM2135SP), egopowerplus.com
  3. Greenworks 40V 20" 4-in-1 Push Lawn Mower (LM2054), greenworkstools.com
  4. Greenworks 80V 21" 4-in-1 Self-Propelled Lawn Mower (LM2108S), greenworkstools.com