How to Edge a Lawn for Clean, Crisp Borders
To edge a lawn, mow first, then cut a clean line where grass meets the bed, path or driveway, using a trimmer or edging tool. A cordless trimmer is a practical choice because you can guide it along the border without a cable.
Prepare before you start
Mow the lawn first so the grass is at an even height and the edge is easy to see. Dry grass cuts more cleanly than wet grass, so wait for a dry spell if you can.
Walk the border and remove stones, sticks and toys. Mark curves with a garden hose laid on the ground if you want a smooth shape. Wear closed shoes and eye protection, since trimmers can throw debris.
Choose your edging method
There are three common ways to edge. A half-moon spade cuts a defined trench and gives a very sharp look, but takes effort. A manual edger is similar but lighter work. A trimmer is the quickest for regular upkeep.
For weekly or fortnightly tidying, a light cordless trimmer like the Brushless 10-Inch Cordless Lawn Trimmer is easy to use. Its adjustable length lets you set a comfortable position, which helps when you work along a long border.
Step-by-step technique
Hold the trimmer so the cutting head sits close to the edge, and move slowly along the line. Let the tool do the cutting rather than pushing it into the soil.
Work in short sections and keep a steady pace so the line stays straight. On paths, keep the head angled slightly away from the surface to avoid scuffing. Around plants, keep a safe distance and finish those spots with hand shears.
Keep edges looking good
After trimming, sweep clippings from paths and rake them from the bed. Clippings left on hard surfaces can look untidy and become slippery when wet.
Edge little and often. A quick pass every couple of weeks in the growing season keeps the line sharp and takes far less time than restoring an overgrown border. Store your tool dry and recharge the battery after use.
FAQ
Should I mow or edge first?
Mow first, then edge. That way you can see the border clearly and trim away any uneven grass in one pass.
How often should I edge my lawn?
In the growing season, every two to four weeks is typical, depending on how fast the grass grows and how neat you want it.
Can I edge a lawn with a trimmer instead of a spade?
Yes. A trimmer is good for regular upkeep, while a spade is better for cutting a new, deep border.
Also worth reading: Cordless Lawn Trimmer for Edging and Trimming · Cordless vs Corded Trimmer: Which to Buy?