Lauren HollandBy Lauren Holland

Updated November 2026

Using a lawn edger lets you cut a clean, defined border between your grass and your walkways, driveways, and garden beds. The job takes a bit of setup and a steady hand, but once you know how to set the depth, guide the tool, and handle the cut, you can finish a typical front walk in well under an hour. This guide walks through preparation, technique, and cleanup.

Prepare the Lawn and the Edger Before You Start

Water the lawn a day before you edge if the soil is dry. Moist soil cuts cleaner and the blade throws less dirt, and the turf roots hold better. Mow first so the grass is at its normal height, then walk the edge and pull out any sticks, stones, or toys that could jam the blade.

Shopping for one? See our guide: John Deere 3 Lawn Edger vs Typical Walk-Behind Edger: Which Should You Choose?. Using Compost to Improve Soil for a Bee-Friendly Lawn goes further into this.

Check the tool itself. Make sure the blade is sharp and tight, the guard is in place, and the cord or battery is in good shape if you are using an electric model. Wear closed-toe shoes, long pants, and eye protection.

Set the Cutting Depth and Angle

Most edgers have a depth wheel or adjustable shoe. Start shallow, around 1/2 inch, and make one pass. Increase depth only if the cut looks ragged or the grass is still standing above the line. Going too deep scalps the turf and leaves a bare trench that takes weeks to recover.

Hold the edger so the blade meets the soil at a near-vertical angle. Many owners find that keeping the wheel or guide riding on the hard surface, such as the sidewalk, gives the straightest line without extra effort.

Make the Cut Using a Steady, Controlled Pass

  1. Start at one end of the run, with the edger off the grass and the blade running at full speed.
  2. Lower the blade onto the edge, then move forward at a walking pace, about 1 foot every second or two.
  3. Keep the guide wheel tight against the hard edge and let the tool track the line on its own.
  4. Stop at the end of the run, lift the blade out of the soil, then turn off the motor.
  5. Repeat along each side, overlapping the start point slightly so there are no gaps.

Work in short sections when edging curves. Pivot the tool in small steps rather than forcing it around tight bends, which tends to tear the turf.

Clean Up and Check the Finished Edge

Sweep or blow debris off the walk and out of the bed. Use a flat spade to square up any corners the blade could not reach, and trim the lip of soil that builds up along the edge. A clean finish usually needs no more than a light raking.

Tools and Supplies Checklist

  • Lawn edger or string trimmer with edging attachment
  • Hand spade or edging tool for corners
  • Stiff broom or leaf blower for cleanup
  • Garden hose for pre-watering
  • Safety glasses, gloves, and closed-toe shoes

Common Mistakes

  • Cutting too deep on the first pass, which scalps the turf.
  • Skipping the mow, so the blade cuts uneven, overgrown grass.
  • Running the edger on dry, hard soil, which causes bounce and rough edges.
  • Rushing corners and curves instead of pivoting in small steps.
  • Edging in wet grass or with a damaged cord, which creates a shock hazard.

A sturdy pair of safety glasses protects your eyes from flying clippings and grit. View on Amazon

A hand edging spade makes quick work of corners the powered blade cannot reach. View on Amazon

A stiff push broom clears loose soil and clippings from walks after you finish. View on Amazon

For model-specific setup, see Worx WG896 Lawn Edger: Setup, Use and Edge-Cutting Tips or Power Lawn Edgers: Setup, Safe Use and Care. If you plan to edge with a trimmer instead, Using a String Trimmer for Lawn Edges Safely covers the technique.

FAQ

How deep should a lawn edger cut?

Start at about 1/2 inch and only go deeper if the grass still stands above the line after one pass. Shallow, repeated passes give a cleaner result than one deep cut.

How often should I edge my lawn?

Most lawns look best when edged every two to four weeks during the growing season. Edge more often if the grass grows quickly or borders are heavily used.

Is it safe to use a lawn edger on wet grass?

Avoid it. Wet grass clogs the blade and increases slipping risk, and electric models pose a shock hazard. Wait for the lawn to dry before edging.

Conclusion

Using a lawn edger comes down to preparation, a shallow starting depth, and a steady pace along the guide line. Work through each section, keep your passes controlled, and clean up at the end. With practice, your borders will stay sharp all season.

Ready to choose one?

Lauren Holland

About Lauren Holland

Lauren Holland is part of our editorial team and reviews and edits our lawn edging & trimming guides, checking product details against manufacturer specifications and owner feedback.