Did I ruin my lawn by dethatching too deep?
Aggressive dethatching cuts too deep into the turf and strips away the grass, leaving the lawn looking atrocious and making people worry they have permanently destroyed their yard. This damage usually happens when dethatching blades are set too low, scraping the lawn down to bare dirt.
What the numbers show
Counted from the threads quoted below. How we count
- The most recent one is from October 2026.
- This comes up 22.1× more often in r/lawncare than across the site as a whole.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Using a high-powered backpack blower to clear loose dead grass instead of a mechanical dethatcherDid this help you?
- 2waiting for grass to recover and new growth to come inDid this help you?
- 3dethatching and scarifyingDid this help you?
- 4overseeding and fertilizingDid this help you?
- 5taking wider turnsDid this help you?
- 6turning more slowlyDid this help you?
- 7performing post-damage repairsDid this help you?
- 8using a push mower for medium-large lawnsDid this help you?
- 9Raking up and bagging the debris or vacuuming it up with a mowerDid this help you?
- 10Putting down new grass seed and fertilizerDid this help you?
- 11Getting the watering schedule sorted out to encourage new turf growthDid this help you?
- 12checking the lawn while mowing by glancing behindDid this help you?
- 13stopping work when conditions are too wetDid this help you?
- 14Evaluating if thatch is actually present before attempting to dethatchDid this help you?
- 15letting grass grow high and dormant for the winterDid this help you?
- 16using core aeration instead of scarifying or dethatchingDid this help you?
- 17overseeding and keeping it watered to let the lawn recoverDid this help you?
- 18Waiting to see if the grass recovers on its ownDid this help you?
- 19Checking if the grass was damp during the cutDid this help you?
- 20cutting shorterDid this help you?
- 21reducing wateringDid this help you?
- 22seedingDid this help you?
- 23putting down peat moss or compostDid this help you?
- 24watering twice a dayDid this help you?
- 25spraying liquid ReviveDid this help you?
- 26being more careful when making turnsDid this help you?
- 27watering less to train roots to go deepDid this help you?
- 28waiting a couple of months without mowingDid this help you?
- 29using a hover mowerDid this help you?
- 30setting the mower at its highest positionDid this help you?
- 31Using a tow-behind dethatcherDid this help you?
- 32Switching to electric dethatcher/scarifiers like Sun JoeDid this help you?
- 33Using a wire rake on sectionsDid this help you?
- 34Raking up by hand or waiting until springDid this help you?
- 35Consulting online guides like thebermudabible.comDid this help you?
- 36Verticutting instead of traditional dethatchingDid this help you?
- 37Wearing glovesDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“I’ve seen folks advise not to use the Sunjoe electric dethatcher because it’s NOT aggressive enough to properly turn of everything, but I’m worried it’s being too aggressive? This is my lawn after a pass with the scarifying blade in a few areas. Is this just matted garbage that should come up anyway? Or am a causing too much damage to the existing grass?”source ↗
“Did i just nuke my lawn? Or will it be ok?”source ↗
“New lawn here in Massachusetts. It was full as hell 4 days ago. Gave it a mow, came out next day, and looks like this. What happened? Can I fix it?”source ↗
“So I got a new dethatcher and, being completely honest, I had no idea what I was doing. 😭”source ↗
“I ended up going over a pretty large section of my lawn and stripped out A LOT of grass.”source ↗
“Now I’m standing here looking at my lawn thinking… **did I just completely fuck it?**”source ↗
“Is this something the lawn can recover from on its own, or should I be doing something now to help it recover? And realistically, how screwed am I?”source ↗
“I plan to reseed in April. What should i do between then and now?”source ↗
“What dethatcher is good for Bermuda tiff tuff?”source ↗
“I used a wire rake on a section. Should i continue over the whole lawn?”source ↗
“I’ve been using a tow behind dethatcher and honestly it doesnt seem to do much.”source ↗
“New lawn here in Massachusetts. It was full as hell 4 days ago. Gave it a mow, came out next day, and looks like this. What happened? Can I fix it?”source ↗
“As someone who potentially just destroyed my lawn due to dethatching, I'm intrigued by this idea.”source ↗
“My lawn is looking like this as well after going 1.5 inches.”source ↗
“My lawn looks absolutely atrocious.”source ↗
“When I bought my house in 2020, a guy down the street from my detached his yard. It still looks rough from the abuse of the machine to this day.”source ↗
“After all that, parts of the lawn that used to be yellow is turning brown, and what used to be green is turning yellow.”source ↗
“I’m not sure if the brown and yellow patches will survive and turn green again but hopefully what looks ugly right now is going to look better next spring.”source ↗
“The Sun Joe will rip up your lawn.”source ↗
“It was at around 250 sq ft that I realized how badly I underestimated the effort to do the entire 2,500 sq ft yard 🙃”source ↗
“When I turn I am tearing up the grass and now there are some bald patches.”source ↗
“Did 3 other peoples lawns after it rained and had no problem. Get halfway through this persons yard and knew something wasn’t right even on the push mower.”source ↗
“I just planted this whole turf and I was wondering how long the roots take until it’s solid ground so that patches dont tear out when I turn the mower?”source ↗
“I did the persons other side of the yard next to the house and had no problem at all I get to there and do the push mower on the hill because it’s too steep and short for my stand on and didn’t have a problem until I got to the top and was hoping it was a small patch of water.”source ↗