Every time I mow my bermudagrass, I leave brown swirls all over the place. What can I do to make this stop happening?

Bermudagrass tends to magnify any inconsistencies in the ground. Bermudagrass consists of brown sheaths, with the green leaf blades up above. When you mow, the green blades are shortened.

If there are dips and holes in the ground, it causes the mower to 'scalp' some areas, exposing that brown sheath and causing brown swirls in the lawn. The swirls disappear eventually, but unfortunately, it's usually a couple of days before you mow, then the brown is back. 'Sanding' or top-dressing the lawn can help minimize this problem.

Large amounts of sand are dumped on the lawn, then raked smooth over the surface. This causes the sand to fill in low areas, thus keeping the scalping effect to a minimum when you mow. This will help, but it won't cure the problem completely.

Mowing frequency is very important with bermudagrass. Mow at least once per week. Golf courses often mow their bermudagrass greens daily for best appearance and playability.

Of course, this is unreasonable for most homeowners, ... more.

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