Commercial Mowing Standards

Cutting height, and why lower is not better

Cutting height is the most consequential decision on a turf area and it is usually made for appearance in the first week rather than performance across the year.

A grass plant supports roots in proportion to the blade above them. Cut short, roots shorten. Short roots mean less drought tolerance, more irrigation, more heat stress in August, and more weeds, because light reaches the soil where seed is waiting.

Cut higher and turf shades its own soil, holds moisture, crowds out weed seedlings, and survives a missed cycle. It looks marginally shaggier the day after a cut and considerably better through the dry season.

On a property with struggling turf, raising the cut is the cheapest fix available and needs nobody's budget approval.

the maximum blade length to remove in a single cut

1/3the maximum blade length to remove in a single cut

typical bermuda height on a commercial site

1 intypical bermuda height on a commercial site

typical tall fescue height, which is far more forgiving

3 intypical tall fescue height, which is far more forgiving

What separates good mowing from fast mowing

Two crews can mow the same turf in the same time and leave two different properties behind.

Blade sharpness is the biggest single difference and nobody looks for it. A sharp blade cuts. A dull one tears, leaving a ragged edge that browns within a day and gives disease an entry point. A property that looks slightly brown two days after every cut usually has a blade problem, not a water problem.

Direction is second. Mowing the same line every week compacts the same wheel tracks and lays the grass over in one direction. Alternating the pattern lets it stand up and spreads the wear.

Wet turf is third. Mowing wet grass tears rather than cuts, clumps clippings, and compacts soft soil. On a property with a fixed service day, that occasionally means moving the visit rather than mowing anyway.

Scalping, and how properties end up there

Scalping is cutting into the stem below the leaf, and it leaves brown, exposed turf that takes weeks to recover.

It happens two ways. Uneven ground, where a mower deck drops into a low spot, which is a grading problem rather than a mowing one. And a property that has grown past the one third rule, where getting back to height in one pass means taking too much.

The second is the more common and the more avoidable. It is what happens when a schedule was stretched, or when spring arrived and the interval did not change.

Recovering from it means raising the height and waiting. There is no product that speeds it up, and cutting again to even it out makes it worse.