Lawn mowing tips.

Mowing tips to keep your lawn
looking great

Get the mowing height right for the right time of year.

There's more to mowing than just cutting the grass every Saturday. One of the most fundamental steps to a perfect lawn is getting the mowing height right for your type of lawn and for the season.

Most grasses do best with a length of 2 - 3". This applies for spring and early fall. In the summer, if possible, set it even higher. Never go below the minimum recommended height except for the last mowing of the season which should be around 1.5" for most turf grasses.

Height is important because the grass uses the extra length to absorb the sunshine it needs to grow and develop into a healthy plant.

Never remove more than 1/3 at any one mowing. This may mean you'll have to mow more often during prime growing times (usually spring and early fall).

If you follow the 1/3 rule for cutting height, you can safely leave the clippings on the lawn after you mow. This not only saves time and energy, but the clippings decompose and add vital nutrients back into the soil.

Mower blade sharpening.Use a sharp mower blade

The type of mower doesn't matter so much as the blade's condition. Dull mower blades tear at the grass. Take a close look at a grass blade a few days after mowing. If the blade is dull you'll notice a jagged brown line across the tip of the cut grass. Jagged edges caused by a dull mower blades make it more difficult for the grass to fight off pests and opportunistic lawn diseases.

That brown jagged edge is a good indication that your lawn mower blade needs sharpening. Professional mowers sharpen their blades about every 8 hours of use. For most homeowners, twice a year is recommended.

Additional tips for better mowing

  • Try to avoid mowing when the grass is wet.

  • When mowing only a third with each cutting, you can safely leave clippings that will quickly decompose and add nutrients back into the soil. Contrary to popular opinion, grass clippings do not add to thatch buildup. Grass blades are made up of about 75% water.

  • Mow your lawn in a different direction with each mowing, especially with lawns of shorter grass types. Altering the direction ensures a more even cut since grass blades will grow more erect and less likely to develop into a set pattern.

  • Keep your mower's blade sharp, which means having it sharpened several times during the mowing season. Keep several blades around so you'll always have a sharp one on hand.

  • Don't forget to change your mower's oil at least once during the mowing season.

  • If you didn't drain your gas tank in the fall, or use a fuel stabilizer, don't use that old gas, it can cause a number of problems. Better to use fresh gasoline to begin the new mowing season.

Selecting the right mowing height

All grass varieties should be mowed at or near their optimal mowing height. This will keep grass healthy and dense (highest number of shoots per unit area). Higher density means more soil surface shading, which severely restricts the germination of many annual grassy and broadleaf weeds. Maintaining a dense and healthy lawn is the best weed control.

Grass Variety

Mowing Height Range
(inches)

Optimal Mowing
Height
(inches)

Normal Mowing
Frequency
(days)

Centipedegrass

1.5 — 2.5

2.0

7 — 14

Common Bermudagrass

1.0 — 3.0

1.5

3 — 7

Hybrid Bermudagrass

0.75 — 2.0

1.0

3 — 7

St. Augustinegrass

2.5 — 4.0

2.5

5 — 7

Zoysia matrella (fine bladed Zoysia)

0.75 — 2.5

1.0

5 — 7

Fescue
2.5 — 3.5
3.0
7 — 14