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The Best Dethatchers - 2021

Last updated on April 6, 2021

We looked at the top 6 Dethatchers and dug through the reviews from 6 of the most popular review sites including and more. The result is a ranking of the best Dethatchers.

Best Dethatchers

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Our Picks For The Top Dethatchers

Show Contents
Our Take
  Our Top Pick

Greenworks 10 Amp 14-Inch Corded Dethatcher

Don't Waste Your Money Seal of Approval

Greenworks

10 Amp 14-Inch Corded Dethatcher

Overall Take

Easy OperationA comfortable design and plenty of power makes this dethatcher among the easiest to operate.

  Best for Smaller Lawns

Sun Joe AJ801E 13-Inch 12 Amp Electric Lawn Dethatcher

Sun Joe

AJ801E 13-Inch 12 Amp Electric Lawn Dethatcher

Overall Take

Handy and EffectiveThis robust electric dethatcher is designed to revitalize small to midsize lawns.

  We Also Like

Agri-Fab 40-Inch Tine Tow Dethatcher

Agri-Fab

40-Inch Tine Tow Dethatcher

Overall Take

40-Inch WidthThis manual dethatcher creates a 40-inch wide swath to help you cover plenty of ground.

  Great for Reseeding

Brinly DT-40BH 40-Inch Tow Behind Dethatcher

Brinly

DT-40BH 40-Inch Tow Behind Dethatcher

Overall Take

Useful and Multi-PurposeThis manual dethatcher has a mode that digs into soil, making it perfect for reseeding projects.

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13

Products Considered

We identified the majority of the dethatchers available to purchase.
6

Products Analyzed

We then selected the leading and most popular products for our team to review.

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6

Expert Reviews Included

In addition to our expert reviews, we also incorporate feedback and analysis of some of the most respected sources.

71,715

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including

The Best Overall

Greenworks 10 Amp 14-Inch Corded Dethatcher

Our Expert Score

9.4

Our Take

With a 10-Amp motor and 14-inch dethatching path, this dethatcher gets the work done with less manual labor on your part. The ergonomic design, padded grip and adjustable handle keep you comfortable while you work. You'll also get a three-position tine depth that you can adjust to get to exactly the level you need.


Our Dethatcher Buying Guide

A healthy green lawn adds significantly to the curb appeal of your home. But lawn maintenance can be a lot of work. Luckily, there are plenty of tools that can help.

One of those tools is a dethatcher. A dethatcher helps remove the loose layer of grass stems, roots, and leaves that forms just above the soil but underneath vegetation. A thin layer of thatch can be a good thing because it acts like a mulch, moderating temperature and moisture levels. But, once it reaches a one-inch thickness, it can start keeping air, water and nutrients from getting to the soil. You also may have issues with insects and lawn diseases.

Preventing thatch buildup is the first step. Thatch forms when new organic matter accumulates faster than the old organic matter decomposes. So as tempting as it can be to water and fertilize your grass, too much of this can create thatch. Try to avoid overwatering your grass. If you use a fertilizer, make sure it isn’t too high in nitrogen.

But once you have thatch, it’s time to get rid of it. You can use a rake to pull it from the soil, but if you have a lot of ground to cover, or thatch is a regular issue, you can buy lawn equipment that will do that job more capably and with less manual labor.

Dethatchers, or scarifiers, can be manual or motor-powered. You’ll want to look at how powerful the engine is as well as how much lawn it can turn up in one swipe. You might also wish to find one that holds organic debris in a bag or tray.

Simplemost Fun Fact

Grass looks nice, but having a nicely-tended lawn also serves a function. Keeping a well-maintained green makes you a good neighbor, beautifying your community in accordance with local customs and creating open spaces for children to play. Also, grass lawns may reduce traffic noise and cool down an area slightly. When it rains, they can also help keep runoff at bay, absorbing some of that water to help prevent flooding.

But caring for grass can be tricky. Different types of grass require different types of care, so it’s important to make sure you’re following the directions specific to your type. It’s also important to avoid doing too much thatching unless it has become a serious problem. Overthatching removes organic matter and can harm your lawn’s health.

The Dethatcher Tips and Advice

  • To determine if your lawn is suffering from a thatch problem, stick your finger through it. If you can’t easily find your way to the soil, chances are, water and nutrients can’t, either.
  • Some grasses are worse about thatch buildup than others. Kentucky bluegrass and bermudagrass are among the worst.
  • Before you begin dethatching, it’s best to mow your grass to about half its normal height. This will help you get to the thatch more easily. You should also mark buried utility lines, sprinkler heads and other obstacles before you get started.
  • If you have cool-season grass like Kentucky bluegrass, you can either dethatch in the early spring or early fall. With warm-season grass like bermudagrass, it’s best to dethatch in late spring.
  • Dethatching will leave a lawn full of thatch. You can remove the mess with a leaf rake, but some dethatchers come with leaf bags to make cleanup easy.
  • After dethatching, you may see a few bald spots. You can purchase products designed to reseed empty patches in your yard.
  • If you’re dethatching before reseeding your yard, you can find dethatchers that are ideal for that. They dig a little deeper into the soil, aerating while they work.

About The Author

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Stephanie Faris 

Stephanie Faris is a novelist and professional writer. She lives in a beautiful one-acre home in the suburbs on the outskirts of Nashville. Her home and garden work has appeared on popular home sites. She's a true homebody and loves looking at new houses for sale for inspiration on her own home remodeling projects.