Best Mowing Height for Buffalo Grass: 2026 Guide

8 min read by Laura Kessler Updated November 11, 2026

The best mowing height for buffalo grass is 2 to 3 inches for most irrigated lawns. Colorado State University Extension gives that range and sets 2 inches as the minimum for any lawn. A University of California guide puts the mower lower, at 1 to 2 inches, so this guide shows where the sources agree, how the one-third rule limits every cut, and how to set a robot mower.

The short answer

Irrigated lawn: keep buffalo grass at 2 to 3 inches, according to Colorado State University Extension, as of 2026-11-09.
UC mower setting: 1 to 2 inches, mowing when the turf reaches 1 1/2 to 3 inches.
Minimum: 2 inches for any lawn, per Colorado State.
One-third rule: never remove more than one-third of the grass height in a single mowing.
Robot mower: check the lowest setting before you buy, because a higher floor keeps the lawn taller than the target.

Best mowing height for buffalo grass by source

Colorado State University Extension recommends 2 to 3 inches for buffalo grass, and it notes the lawn also does well unmowed. The University of California guide sets a lower mower setting. The table lists the figures behind the best mowing height for buffalo grass from the pages we checked directly.

Source	Recommended height	Notes
UC Healthy Lawns (UC IPM)	Mower set to 1 to 2 inches	Mow when the turf reaches 1 1/2 to 3 inches
Colorado State University Extension	2 to 3 inches	2 inches is the minimum for any lawn

The two ranges meet at 2 inches, which is why it is the safest starting point. The UC page describes a mower setting, while Colorado State describes the height the lawn should be kept at, so the wording differs even where the numbers overlap. Our reading is that 2 to 3 inches is the target to aim for, and the UC range is a reminder that a low setting is possible but not required.

Why 2 to 3 inches suits most irrigated lawns

For a watered buffalo grass lawn, 2 to 3 inches keeps enough leaf for the grass to recover between cuts. Colorado State recommends 2 to 3 inches for buffalo grass and says buffalo grass and blue grama also do well unmowed. That makes the height a choice rather than a fixed requirement, and a taller setting costs little.

Steel ruler standing in short green grass to check the best mowing height for buffalo grass, with a robot mower behind it — Measuring the grass with a ruler shows whether the lawn sits in the 2 to 3 inch range.

Watered lawns: Colorado State ties its mowing guidance to lawns that get regular water.
Unwatered lawns: Colorado State says buffalo grass does well unmowed, so a dry lawn can go longer between cuts.
The 2-inch floor: Colorado State gives 2 inches as the minimum for any lawn, so treat it as a floor, not a target.

Your mower’s lowest setting matters as much as the target. A model that cannot go below 3 inches will keep the lawn taller than you intend, so compare the spec sheet with the 2 to 3 inch range before you buy.

Heads up

Colorado State gives 2 inches as the minimum height for any lawn. Cutting below that floor removes more leaf than the turf can spare in one pass.

The one-third rule sets your height limit

Never remove more than one-third of the grass height in one mowing. Colorado State says to mow often enough that no more than a third of the grass height is removed at any single mowing. The rule applies to every cut, including the first cut of spring, which is why the best mowing height for buffalo grass works as a range. A separate guide to the one-third rule for mowing grass covers the arithmetic for other turf types.

Here is our arithmetic, not a figure from either source. If you keep a lawn at 2 inches, let it reach about 3 inches before you cut, which removes one inch and leaves two. If you keep it at 3 inches, the grass can reach about 4 1/2 inches before the cut.

Robot mower parked beside its charging base on a suburban lawn at dusk — A robot mower returns to its base between short, frequent runs.

Pick the target height. Choose 2 to 3 inches and set the mower to match.
Work out the trigger. Multiply the target by 1.5 to find the height at which to mow. This is our arithmetic from the one-third rule.
Cut at the trigger. Mow when the grass reaches that height, not on a fixed date.

Colorado State says a watered buffalo grass lawn may need mowing once every 10 to 20 days, depending on how much it is watered. Use the trigger height first and the calendar only as a rough guide. The full guidance is on the Colorado State lawn care basics page.

Shade, heat and stressed lawns

Shaded or stressed buffalo grass should stay at the upper end of its range, because removing leaf under stress slows recovery. Neither verified page gives a separate figure for shade, so this advice is our reading.

Our reading is that a lawn in partial shade suits 3 inches better than 2, since the grass has less light to rebuild leaf between cuts. This does not apply to dormant or unwatered lawns that Colorado State says can do well unmowed. Those can be cut less often, or skipped, without the same risk. The guide to mowing height for shade grass covers shaded lawns in more detail.

Setting a robot mower to buffalo grass height

The best mowing height for buffalo grass on a robot mower is 2 to 3 inches, starting near the top of that range and lowering only once the lawn settles. Robot mowers cut at the height of their lowest setting, so check that floor before you set the target.

Check the lowest setting. A model that cannot go down to 2 inches will keep the lawn taller than the target, so compare the spec sheet first. This guide to what height a robot mower should cut explains how the setting works.
Start at 3 inches. Our reading is that a new or recently scalped lawn settles better at the top of the range before you lower the deck.
Run short, frequent sessions. A mower that runs most days removes only a little leaf each time, which fits the one-third rule without measuring.
Tie the schedule to growth. Colorado State says mowing frequency depends on watering, so a fast-growing lawn needs more runs than a dry one.

Common height mistakes and how to avoid them

The most common mistake when choosing the best mowing height for buffalo grass is cutting below the 2-inch minimum that Colorado State gives for any lawn. A low setting removes too much leaf in one pass and weakens the turf, even when the mower is working correctly.

Cutting below 2 inches: a lower setting removes more leaf than the turf should lose in one cut, as explained in what happens if you cut grass too short.
Taking more than a third at once: the one-third rule applies to every cut, including the first mowing of the season.
Cutting an overgrown lawn all at once: our reading is to raise the deck for the first pass, then cut again a few days later at normal height. A guide to cutting an overgrown lawn before using a robot mower shows the steps.
Ignoring the mower’s floor: a robot mower with a higher lowest setting keeps buffalo grass taller than the target you chose.

Frequently asked questions

What is the best mowing height for buffalo grass?

The best mowing height for buffalo grass is 2 to 3 inches on irrigated lawns, according to Colorado State University Extension. UC IPM sets the mower at 1 to 2 inches and mows when the turf reaches 1 1/2 to 3 inches. Two inches is the point where both sources meet, so it is the safest starting height for most lawns.

How low can you cut buffalo grass?

Colorado State gives 2 inches as the minimum height for any lawn, so cutting lower removes too much leaf in one pass. Keep each cut at 2 inches or above, and check that no more than one-third of the grass height is removed before every mowing session.

Should buffalo grass be cut higher in shade?

Neither verified source gives a separate shade height. Our reading is to keep shaded buffalo grass at the upper end of 2 to 3 inches, which leaves more leaf for recovery. Check the lawn after each cut and raise the setting if it looks thin.

How often should buffalo grass be mowed?

Colorado State says a watered buffalo grass lawn may need mowing once every 10 to 20 days, depending on how much it is watered. Dry lawns can go longer, and buffalo grass can also do well unmowed, so the schedule should follow the grass height rather than the calendar.

Sources

UC Healthy Lawns: Mowing warm-season grasses (UC IPM): mower setting of 1 to 2 inches for buffalograss, mowing at 1 1/2 to 3 inches, and the one-third rule.
Lawn Care Basics (Colorado State University Extension): recommended 2 to 3 inch height, 2-inch minimum for any lawn, mowing interval of 10 to 20 days, and the one-third rule.