How To Edge A Lawn With A String Trimmer

If you don’t own a dedicated lawn edger, you can still get a professional-looking edge to your lawn, using a string trimmer. Read on to find out how!

But before that, have a look on how a string trimmer actually works and the basic differences between a string trimmer and an edger.

Before You Begin – Safety First

First things first, before you learn how to edge a lawn with a string trimmer, you need to take all the necessary safety precautions. A string trimmer is capable of causing injury to you and others, as well as damaging windows, cars, and other property. The head rotates at a very high speed, and is capable of turning stones and debris into high-speed projectiles.

You should not put yourself or anyone else in harm’s way. Make sure you clear the garden of anything and everything, including debris, garden hoses, lawn decor and toys.

Here are the things you need to wear before you even start the string trimmer:

  • Hearing protection
  • Safety Glasses
  • Long pants
  • Closed toe shoes (boots are preferable)
  • Safety gloves

Make sure your clothing is not too loose. One more thing to keep in mind is that the fresh cut grass will leave a stain so do not wear any new outfits while you’re out gardening.

Mow Your Lawn

Before you start the string trimmer, mow your lawn. Mowing the lawn will give the whole lawn a uniform and neat look. Once the lawn is completely mowed, you will only have the edges left to deal with. That is where your string trimmer should come in.

Follow the Edge of the Hard Surface

Next order of business is to start the string trimmer. When you use the lawn mower, there will be some parts of the lawn you will not be able to reach and cut evenly. That can be along hard surfaces, so your string trimmer will come into use for tight spaces like that.

Use the edges of the hard surface to guide you as you slowly cut the grass. Remember to hold the tool completely level with steady hands. Instead of moving your arms to edge the lawn, move your body. This will result in a much more straight cut.

You can check out our article on how to use a string trimmer for more details.

Practice Moving the Head

Before you start edging the lawn like a pro, it is recommended that you go over the motion first. Turn the string trimmer off and practice moving the trimmer while keeping it level. Once you get your body in sync with the trimmer head when it comes to movement, turn it on and slowly start with the trim again.

Again, make sure you use the edges of the hard surfaces to guide you while cutting the grass.

Clear Away Your Clippings

The last step in learning how to edge a lawn using a string trimmer is of course, to clear away the clippings. There is no gardening job in the world that you can do without clearing away debris. As you cut the grass on the edges, the string trimmer will throw it all around.

Make sure that you use a small garden rake to help you clear up the excess grass trimmings as you go along. After all, what good is making all that effort to make your lawn beautiful if you don’t get rid of the waste?


The last piece of advice on how to edge a lawn with a string trimmer is to take your time with it. Trim a little bit of an area and clean it up before you move on. This will keep you from making a lot of effort in coming back to the same territory too many times to complete the job.

Just make sure you pay attention to your safety at all times and you will be good to go.

Don’t forget to take a look at reviews about some of the top string trimmers on the market.

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