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Don't Let the Weeds Win, Learn the Right Way to Mow

Grow a healthy, lush lawn with these 13 essential mowing tips.

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Photo: Toro.com

Mowing seems simple enough, but each time you cut your grass you’re paving the way for your lawn’s success or failure. Mow correctly, and you’ll groom turf that’s healthy, drought-tolerant and thick enough to crowd out weeds. Mow incorrectly, and your lawn will struggle to survive. Time mowings so you’re never removing more than one-third of the total leaf surface (of a single grass blade) with each cutting.

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Photo: Ahmet Ercan Senkaya

Scalping Lawn

Avoid scalping grass, which is cutting it too short. A scalped lawn is vulnerable to diseases and weed infestation. Scalped turf tends to be weak and sparse, which exposes soil. One of the No. 1 contributors to weed success is exposed soil that allows weed seed to take root. A sparse lawn also lets sunlight reach weed seedlings and give them a boost. Grass that’s consistently cut too short has a poorly developed root system, which makes the lawn more susceptible to serious damage from drought or high temperatures.

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Photo: David Freund

Adjusting Mower Height

Adjust mower height throughout the growing season. For instance, shift the cutting deck higher in summer and allow grass to grow longer. Taller grass helps shade soil, which prevents weed growth and slows water evaporation from soil. Taller grass also develops deeper roots, which creates a lawn that can withstand drought better. In late autumn, in regions where winter brings snow cover, lower the cutting deck for the last mowing of the season to help prevent snow mold from forming on grass.

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Sharpen Mower Blade

Keep your mower blade sharp to get the best results from each mowing. A sharp blade cuts grass cleanly, while a dull blade tears grass, creating a jagged, uneven edge. These tears create openings for pests and diseases to enter grass blades. A lawn that has been cut with a dull blade develops a whitish or brown hue as the tips of individual grass blades die back. Sharpen blades at least a few times during the mowing season. Avoid mowing over thick branches or stones to reduce blade dulling or even damage. Consider purchasing an extra mower blade, so that you always have a sharp blade at the ready.

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