Robot Mowers That Cut Low Enough for Bermuda Grass

Bermuda is the grass of Texas, Oklahoma, Georgia, the Carolinas and much of the Sun Belt. It’s tough, fast-growing and heat-loving, and it looks best kept short and dense. That makes it close to ideal for a robot mower that cuts a little every day, as long as the mower can actually cut low enough.

This guide gives you the recommended heights from two university extension services, compares stated cutting ranges, and names the mowers that suit bermuda. MowReview quotes no prices and hasn’t tested these mowers. How we research explains why.

How low bermuda should be cut

Texas A&M’s AggieTurf program recommends a mowing height of 1 to 2 inches for bermudagrass home lawns with a rotary mower, mowed weekly. University of Georgia extension gives the same 1 to 2 inches. Both sit alongside the rule that applies to every lawn: take no more than a third of the leaf blade at a time.

That rule is the whole reason bermuda and robot mowers suit each other. At 1.5 inches, a weekly push mower has to catch bermuda before it reaches 2.25 inches, and in a Texas June, bermuda grows faster than that. A robot mower cutting daily takes a fraction off each time and keeps the lawn at height without scalping.

Stated cutting ranges compared

The picks

What else bermuda asks of a robot mower

Summer growth rate

Bermuda grows fastest in exactly the heat that makes mowing miserable, so the mower needs enough capacity to keep up in June and July. Size it with room to spare. A mower rated only just above your lawn area will fall behind in peak growth. What size do you need shows how to measure.

Low cuts and uneven ground

The lower you cut, the more every bump and dip shows up as a scalped patch. Bermuda’s low recommended height makes a level lawn more important than for most grasses. Fill dips and knock down high spots before setting the mower to its lowest heights.

Runners into beds and paths

Bermuda spreads aggressively by runners into flower beds and across path edges. A robot mower won’t fix that. It keeps the lawn short but leaves the edges to you, so plan on an edger or trimmer, or hard edging along beds.

Shade

Texas A&M lists shade tolerance as a weakness of bermuda. The upside for a robot mower owner is that bermuda lawns tend to be open and sunny, which suits satellite navigation. Where trees do shade part of the lawn, expect thinner turf there and a slower mower. Robot mowers for yards with trees covers the navigation side.

Winter dormancy

Bermuda goes brown and dormant in winter across most of its range. The mower should stop when the grass does. Winter storage covers putting it away.

For more on how warm-season grasses behave under robot mowers, see robot mowers on St. Augustine and bermuda.

Questions

What height should a robot mower cut bermuda grass?

Texas A&M’s AggieTurf program and University of Georgia extension both recommend 1 to 2 inches for bermuda home lawns. A robot mower whose minimum is 1 inch or lower gives you the whole range to work with.

Which robot mowers can cut bermuda below 1.5 inches?

From the models compared here: the Segway Navimow X430 (stated minimum 0.75 in), the standard Mammotion YUKA mini 2 (0.8 in), the standard Mammotion LUBA 3 AWD (1.0 in) and the Ecovacs GOAT A3000 LiDAR (1.2 in). The Mammotion H versions start at 2.0 inches or higher.

Should I buy the Mammotion H version for bermuda?

No. The H versions are built for tall grasses and start at 2.0 inches on the YUKA mini 2 and 2.2 inches on the LUBA 3 AWD, which is at or above the top of bermuda’s recommended range. Buy the standard version.

Is a robot mower good for bermuda grass?

It’s one of the best matches. Bermuda looks best kept short and grows fast in summer, which makes the one-third rule hard to keep with weekly mowing. A robot mower cutting a little each day keeps it at height without scalping, as long as it can cut low enough.

Will a robot mower scalp my bermuda lawn?

Not through overgrowth, because it cuts frequently. Scalping on a robot-mown bermuda lawn almost always comes from uneven ground: high spots get scalped at low settings. Level the lawn before running the mower at its lowest heights.

Will a robot mower stop bermuda spreading into my flower beds?

No. It keeps the lawn itself short but doesn’t stop runners creeping into beds or over path edges. Hard edging or regular trimming is still needed.

The short version

Bermuda wants 1 to 2 inches, so check a mower’s minimum height before anything else. The Navimow X430 suits bigger lots, the standard LUBA 3 AWD suits slopes and split yards, and the standard YUKA mini 2 suits small lawns. Avoid the Mammotion H versions, level the lawn before cutting low, and size the mower for June growth rather than April.