How to Trim Lawn Edging


Lawn edging defines flower beds and lawns, keeping mulches and grasses in their proper place. The main types of edging include brick, stone, metal and plastic. Brick and stone cost the most, but are durable and add a decorative visual element to landscaping. Metal edging rusts, but lasts for 30 years. Plastic edging is the least expensive, but also the least durable. It tends to heave out of the ground during freezes. Grass grows up and around any edging, requiring trimming to maintain a neat look.

Step 1

Place the back wheel of one side of the lawn mower on the edging, if the edging is less than 2 inches off the ground. Drive the lawn mower along the edging carefully so you don't send the mower into the flower bed.

Step 2

Trim small areas with a hand-held trimmer. Pull the lever on the handle to open and shut the blades in a cutting action, as you carefully move along the edging until the entire area is trimmed. Trim the grass around the edging at the same height as the mowed lawn.

Step 3

Trim larger areas with a gas or electric trimmer. Place the trimmer next to the grass and move along the edging, trimming the grass at the same length as the rest of the lawn. Be careful not to cut the grass too short, and avoid nicking trees.

Tips and Warnings

  • Always wear shoes and protective eyewear when using a lawn mower or edger.

Things You'll Need

  • Lawn mower
  • Hand trimmer
  • Gas or electric string trimmer


  • Great-Landscaping-Ideas: Landscape Edging and Trimming
  • Trimming/Edging Your Lawn

Who Can Help

  • Cornell University: How Grass Grows
  • Cornell University: Save Gas, Sharpen Your Mowing Practices
Keywords: trim lawn edging, lawn care, mowing lawn edging

About this Author

Julie Christensen has been writing professionally since 2001. She is a full-time freelance writer and former teacher with writing credits from several regional and national publications, such as Colorado Parent and LDS Living. She specializes in parenting, education and gardening topics. Christensen studied early childhood education at Ricks College, and spent 20 years as a teacher and director in university and public school settings.