- 7 weeks ago
Dethatching can rescue a tired lawn, but one wrong move can leave it brown, thin, and struggling. Elias Yoder walks through the seven biggest dethatching mistakes, from choosing the wrong season to using the wrong tool, working wet grass, and tearing up a lawn that is too young to handle the stress.
He explains why dethatching should be done only when grass is growing strong, why a hand dethatching rake is often the best choice for a normal yard, and why a rented machine makes more sense for a very large lawn. He also covers the timing problems that come with pre-emergent weed barriers and heavy weed seed season, then finishes with the recovery step most people skip: feeding the lawn after raking so it can bounce back thick and healthy.
Created for lawn care, yard maintenance, and home gardening viewers searching for dethatching tips, dethatching mistakes, thatch removal, lawn renovation, and cool-season grass care. A practical guide for anyone wanting a greener lawn, better soil health, and fewer weed problems without ruining the grass they meant to help.
He explains why dethatching should be done only when grass is growing strong, why a hand dethatching rake is often the best choice for a normal yard, and why a rented machine makes more sense for a very large lawn. He also covers the timing problems that come with pre-emergent weed barriers and heavy weed seed season, then finishes with the recovery step most people skip: feeding the lawn after raking so it can bounce back thick and healthy.
Created for lawn care, yard maintenance, and home gardening viewers searching for dethatching tips, dethatching mistakes, thatch removal, lawn renovation, and cool-season grass care. A practical guide for anyone wanting a greener lawn, better soil health, and fewer weed problems without ruining the grass they meant to help.
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LifestyleTranscript
00:00You looked out at your lawn one morning and decided this was the year you would finally make it something
00:06to be proud of.
00:07You read a little, you learned a word, dethatching, and you went at it.
00:12And a few weeks later you are standing over brown, thin, struggling patches, wondering what on earth went wrong.
00:21Because the thing that was supposed to save your lawn seems to have half killed it.
00:26I have seen this more times than I can count.
00:29A man does the right thing at the wrong time, or the right thing in the wrong way, and turns
00:36a tired lawn into a ruined one.
00:39I am Elias. My family came over from the Palatinate in 1838, and we have worked this Lancaster County ground
00:47ever since, grass and garden and field alike.
00:51And I will tell you plainly, dethatching is a good and useful thing when a lawn needs it.
00:58But it is hard on the grass while it is happening, and there are seven ways folks get it wrong
01:03that turn a helpful job into a harmful one.
01:07So today I am going to walk you through all seven, so you do the thing right and end up
01:13with the lawn you wanted instead of the mess you feared.
01:17Let me first say plainly what the job even is, because half of getting it right is understanding it.
01:25Thatch is the layer of dead grass and old roots and matted material that builds up on top of your
01:31soil, down at the base of the green.
01:33A little of it is no harm at all, but when it gets too thick, it forms a kind of
01:39dead mat that the rain and the air and the food cannot get through,
01:44and your grass roots sit there underneath, choking, unable to breathe or drink.
01:50Dethatching is simply combing that dead mat up and out so the soil can breathe again.
01:57Good work when it is needed.
01:59Now, here are the seven ways to ruin it.
02:01The first mistake is the biggest, and it is doing it at the wrong time of year.
02:06This is the one that turns a helpful job into a deadly one.
02:11Combing out that thatch stresses the grass.
02:14There is no way around it.
02:16You are raking hard at living plants.
02:19So you must only do it when the grass is strong and growing hard, so it can shrug off the
02:25stress and bounce right back.
02:27For the cool season grasses most folks have in the north, that means the fall, or the tail end of
02:33spring, when the grass is thriving.
02:36You never, ever dethatch a lawn that is dormant or browned out and stressed from summer heat or drought.
02:43Raking a stressed lawn is like asking more work of a man who is already worn down sick.
02:50You do not help him, you finish him.
02:53Do it when the grass is at its strongest, never when it is already struggling.
02:58Quick word before I go further.
03:00The old methods my family uses.
03:03There is more of it than fits in any one video.
03:06I gathered the whole of it into a book at EliasYoder.com.
03:11The book is the long version.
03:13If you want it, it is there.
03:15I will not mention it again.
03:17The second mistake is using the wrong tool for the size of the job.
03:22For most yards, a home lawn, the old hand tool is all you need and all I use.
03:29It is a dethatching rake, a thatch rake, a heavy rake with sharp curved tines made to bite down through
03:37the green and pull up the dead mat beneath.
03:40You work it across the lawn and it drags that thatch right up to the surface.
03:45For a normal yard, it is honest work, an afternoon of it, and it costs you nothing but sweat and
03:52does the job as well as anything.
03:54Now I will be straight with you.
03:56If you are dealing with a very large lawn, an acre of it, doing the whole thing by hand rake
04:02is a hard road.
04:04The English neighbors use a powered machine for that, an electric or gas dethatcher,
04:09and for a big job, a man can rent one of those from the hardware store for a day rather
04:15than buy it.
04:16I do not run the powered machines myself.
04:19That is not our way.
04:20But I will not pretend a hand rake is quick across a giant lawn.
04:26For most of you, the rake is plenty.
04:28For a great big space, the rental machine is the sensible thing, and you need not own it to use
04:35it once a year.
04:36The third mistake is doing it while the grass is wet.
04:39This one, folks, learn the hard way.
04:41If you go out early with the dew still heavy, or right after rain, or right after the sprinklers have
04:48run,
04:48everything is damp and matted and heavy.
04:51The wet thatch will not lift and pull free the way dry thatch does.
04:56It clings, and tears, and gums up the rake or the machine, and you fight twice as hard for half
05:03the result.
05:04So wait for a dry stretch.
05:06If you water your lawn, shut the water off a few days ahead, let it dry, pick a day with
05:13no rain, and let the lawn dry out a bit.
05:16Dry thatch combs up light and easy.
05:19Wet thatch fights you the whole way.
05:22The fourth mistake has to do with weed barriers, and this one surprises people.
05:27There is a kind of treatment many folks put down in spring called a pre-emergent,
05:33a thing meant to stop crabgrass and other weed seeds from sprouting.
05:37The way it works is it lays down a thin barrier across the top of the soil,
05:43and any weed seed that tries to sprout up through it is stopped.
05:47Now think on what dethatching does.
05:50It rakes and disturbs that very top layer of soil.
05:54So if you have already laid down that weed barrier, and then you go dethatch,
06:00you tear right through the barrier you just made and break it open,
06:04and now the weeds you were trying to stop come right up through the gaps.
06:09So you do not dethatch after you have put down a pre-emergent.
06:14Do your dethatching first, then lay the barrier down clean over a freshly raked lawn,
06:21never the other way around.
06:23The fifth mistake is dethatching when the weed seeds are flying thick.
06:29Here is the thing to understand.
06:31When you comb open that thatch layer, you are opening up the bare soil to the air,
06:36and bare open soil is exactly where a blowing weed seed wants to land and take root.
06:44So if you dethatch at a time of year when the air is full of weed seed,
06:49drifting off every untended lot in the neighborhood,
06:52you have just rolled out a welcome mat for every weed in the county.
06:57This is one more reason the fall is the best time for the cool season grasses.
07:03The weed seeds are not flying near so thick then as in the flush of spring.
07:09Open your soil when the air is clean of seed, not when it is thick with it,
07:15or you will trade a thatch problem for a weed problem.
07:19The sixth mistake is dethatching a lawn too young to take it.
07:24A brand new lawn, fresh seed that came up this season,
07:29or sod laid down this year,
07:31has not yet put down a deep, strong, established root system.
07:36Those young plants are only just holding on.
07:40If you go raking hard at a lawn like that,
07:43you will tear the young grass right up out of the ground,
07:47roots and all, because it has nothing to anchor it yet.
07:51Dethatching is for an established lawn
07:54with a deep root system underneath
07:56that can hold fast while you rake and then recover after.
08:01So leave a new lawn be.
08:03Give it a full season, more,
08:05to root down deep and settle in
08:08before you ever take a dethatching rake to it.
08:12And the seventh mistake
08:13is walking away the moment the raking is done
08:17and giving the lawn nothing to recover with.
08:20Remember, you have just put your grass
08:23through a hard, stressful combing.
08:25It is worn down and it needs to be fed
08:28to bounce back strong.
08:30And a lawn that bounces back fast and thick
08:33leaves no bare ground for weeds to claim.
08:37Now, here is where I part from how most folks finish this job.
08:42The common advice is to run out and put down a bag of chemical fertilizer.
08:48I did a whole video on why your lawn does not need that bought powder
08:53and I will not double back on myself now.
08:56The old way to feed a stressed lawn
08:59is to top it lightly with good, fine compost
09:02or well-rotted, composted manure
09:05raked thin across the surface
09:08right after you dethatch.
09:10It settles down into the open soil
09:12you just combed clean.
09:14It feeds the grass
09:16and feeds the soil life both
09:18and it does it without a bag of salt from the store.
09:22You just opened that soil up.
09:25There is no better moment
09:26to work a little real fertility down into it.
09:30Feed it the old way
09:31and watch it come back thicker than before.
09:35So there are your seven.
09:37Do it only when the grass is growing strong
09:39never dormant or stressed.
09:42Use a hand rake for a normal yard
09:44and a rented machine for a great big one.
09:47Do it dry, never wet.
09:50Never dethatch after laying a weed barrier.
09:53Do it when the weed seeds are not flying
09:55the fall for cool grasses.
09:58Never rake a young lawn that has not rooted deep
10:01and feed it the old way the moment you finish
10:04so it bounces back thick
10:06before any weed gets a foothold.
10:09Now let me tell you who profits
10:11from your getting this wrong.
10:13Not to rile you up,
10:15just so you see the shape of the thing,
10:17because once you see it,
10:19you cannot unsee it.
10:21There is a whole trade built around the lawn
10:24that struggles.
10:25The man who dethatches at the wrong time
10:27and burns his lawn brown
10:29is sold a fix for that.
10:31The man who opens his soil
10:33to a storm of weed seed
10:35is sold a weed killer for that.
10:38The man who rakes his lawn raw
10:40and feeds it nothing
10:41is sold a bag of fertilizer to rescue it,
10:44and then another and another.
10:46A lawn kept simply
10:48and fed from your own compost pile
10:50needs almost nothing bought.
10:52A lawn pushed and stressed and stripped
10:55needs a cupboard full of products
10:57to limp along.
10:58I am not telling you a man schemed this.
11:01No one had to.
11:02It is worse than a conspiracy,
11:04because it is a system
11:06nobody had to coordinate.
11:08It simply pays better
11:10to sell rescue after rescue
11:12to a struggling lawn
11:13than to teach a man
11:14to keep a healthy one
11:16that asks for nothing.
11:18Now I want to hear from you,
11:19and I ask honest
11:20because I learned the whole country
11:22from these comments.
11:23Tell me in the comments below,
11:25have you ever dethatched your lawn
11:27and did it come back better
11:29or did it come back worse?
11:31And tell me your county
11:32and what kind of grass you keep,
11:34because the right season for this
11:36changes a great deal
11:38from the cool grass north
11:39to the warm grass south,
11:41and I like to map it
11:43by where you all write from.
11:44I read every one.
11:47Next time,
11:48I want to show you
11:49how to overseed
11:50a thin, patchy lawn
11:51the old way,
11:52how to thicken up
11:53the bare spots
11:54so the grass itself
11:55crowds out the weeds,
11:57because a thick lawn
11:58is the only weed killer
12:00that never runs out
12:01and never needs buying.
12:03A lawn is not so different
12:05from a field or a garden.
12:07You work it when it is strong,
12:09you feed it from what you have,
12:11and you do not push it harder
12:12than it can bear.
12:14My grandfather kept green grass
12:16around the house
12:17his whole life
12:18and never once bought a thing
12:19in a bag to do it.
12:21The yard that stays green
12:23year after year
12:24is the yard whose soil
12:25is kept alive
12:26and fed by hand.
12:28The people who built this country
12:30with their hands knew that,
12:31and we are only just starting
12:33to remember it.