Our research indicates that the Greenworks 14" 10-Amp Corded Dethatcher (DT14B00) is $28.84 lower (22.1% savings) than the next best available price from a reputable merchant with prices starting from $129.99 at the time of this posting.
About this product:
This dethatcher has a 4.4 out of 5 star overall rating based on 87 reviews.
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Our research indicates that the Greenworks 14" 10-Amp Corded Dethatcher (DT14B00) is $28.84 lower (22.1% savings) than the next best available price from a reputable merchant with prices starting from $129.99 at the time of this posting.
About this product:
This dethatcher has a 4.4 out of 5 star overall rating based on 87 reviews.
Model: Greenworks 14 in. 10 Amp Corded Electric Dethatcher, DT14B00
Deal History
Deal History includes data from multiple reputable stores, such as Best Buy, Target, and Walmart. The lowest price among stores for a given day is selected as the "Sale Price".
Sale Price does not include sale prices at Amazon unless a deal was posted by a community member.
I bought this Dethatcher when it was on sale at amazon for $ 119.00 and and very happy with the result. Now we have the most beautiful green lawn in our neighborhood.
1st pic - shows the dead grass we got out. It filled the whole bin.
2nd pic - is the lawn after detaching and reseeding.
3rd pic - is the final result after 4 weeks and watering 2 times a day.
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I purchased this one from Amazon earlier this year, works fantastic!!! I detached my yard in March now it looks much better and greener. The sun joe does come with a bag but you don't need a bag , is better to detach then mow with lawn mower and bag.
Nice price for this machine but I would suggest paying little more and getting one with the basket to catch the clippings. Having to pick up the dead grass will take you 4-5x longer than running the machine itself and leaving the dethatched grass on the lawn is not really an option.
Many SunJoe owners have commented the bagger is a PIA as it fills up in a matter of a minute and therefore just take it off. Running a lawnmower with the blade low does a pretty good job of vacuuming the thatch up and a MUCH easier job than raking.
I bought this a few years back and while it does a good job, make sure you have multiple bags of replacement tines on hand. This tines are quite flexible and flimsy. most will bend a bit and will still be usable. some bend to the point that they no longer function and some just snap off.
I do not regret the purchase but it is frustrating that after each season I have to replace a quarter of the tines.
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Did my front and back lawn today. 7500 sq feet total. Probably 90 minutes to do them both.Went over the removed thatch with my Toro with the grass bag installed.picked up all the thatch great. Filled 6 Costco lawn bags with thatch. everything removed was very dried and lightweight. I had cut my lawn 2 days earlier.
Hmmm.... Never heard about it messing up the preemergent. Shouldn't it have already done its job and is in the soil etc already? I applied it over a month ago and it should be rained in.
It rains in, but it lives in the top few mm of the soil (and mostly the thatch if you have thatch, hence why you would DEthatch) and thats where the most seeds germinate. If you dethatch you need to reapply preemergent or suffer the consequences.
Can anyone advise on whether it's worth investing in one of these for someone that doesn't use weed killer in their yard? Will it rip up godforsaken creeping buttercup?
It rains in, but it lives in the top few mm of the soil (and mostly the thatch if you have thatch, hence why you would DEthatch) and thats where the most seeds germinate. If you dethatch you need to reapply preemergent or suffer the consequences.
Good to know, never really thought about it that way.
I've been dethatching with a tow-behind tine unit (yeah yeah I hear the pros now all saying to go spend $60/day to rent a real dethatcher) for about 10 years and generally do it earlier in the spring when it's not super muddy, because I fertilize and overseed as well and that's as good a time as any to do it because the dethatcher really tears up the lawn. I have about 1.5 A mowable and the very first year I dethatched I pulled 3-4 full loads of dead grass (you get a fair amount of dirt as well) in my bagger out of the lawn, on an ongoing basis though it's less than 1 load (I have the largest bagger unit that JD sells for the X530, forget how many bushels or whatever it is).
The first time you do it you'll be like.,... OMG WTF did I do to the lawn?!?!?!? but fertilize and hopefully mother nature will cooperate and rain - and within a few weeks the lawn will really pop.
It's probably not something you need to do yearly, and that depends on your cutting habits - if you bag your grass, that leaves FAR less to settle and eventually become thatch, so you'll also have to dethatch less.
Thatch is largely caused by a lack of microbial activity in the soil that cannot break down the thatch quick enough. Using a machine won't help that. You need to build up the soil microbes and keep them well fed. Throwing down a thin layer of compost will help rid the thatch and introduce/add soil microbes. After that keep them well fed by mulch mowing and fertilizing with organic fertilizer. That includes but is not limited to Milorganite (if it's available in your area), soybean meal, cracked corn, alfalfa pellets, mulching mowing leaves in the spring etc. Keep chemical fertilizers and insect killing chemicals to a minimum.
I put milorganite down last year and I'd say it is a great fertilizer but is super expensive even compared with the name brands. That's for 2 reasons..... shipping that shit (literally) to where we live costs $$$ (if you live closer to Milwaukee it should be cheaper), plus each lb has much less coverage (sq ft) than the name brands, meaning you need more bags to theoretically accomplish the same task.
a 43 lb bag of a Scotts product is $59 and treats 15k sq ft or just under $10 per 2500 sq ft. (~ 7 lb of product/2500 sq ft) Milorganite? $20 for 32 lb which also treats the same 2500 sq ft, or over double the price and 4+ times the weight per sq ft.
What does the scarcifier attachment do that the dethatching one doesn't? Why is that preferred if I need to dethatch my lawn? Don't know anything about it. Thanks!
The standard dethatcher uses thick tines with a spring curl that "comb" the yard and pull dead (and some live) grass to the surface. You can then rake, or bag, or use a blower to get the stuff off of the yard and into bags or use as mulch. The scarifier (Sun Joe) is more like hardened blades that will cut thru the grass and soil. It too will pull up dead and live grass but to a much more agressive degree. The scarifier is a better tool to break up hard soil and if you are going to overseed, it will create mini planting rows for your seed to fall into. Youtube has some pretty good videos showing how one works versus the other.
Also someone mentioned the commercial grade aerators for rent at HD. You can buy a tow behind plug aerator that can be pulled by a standard lawn tractor and will do a pretty good job. Agri-Fab makes a few versions and can be purchased from Lowes or Amazon. Might be a good investment if you have a lot of yard or acreage and want to aerate every year or so.
My neighbor had a spike aerator that I borrowed and it just would not do the job here in Tennessee. Too much clay. Even after a rain, loaded with multiple cinderblocks, it just bounced around on top of the dirt.
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Thatch is largely caused by a lack of microbial activity in the soil that cannot break down the thatch quick enough. Using a machine won't help that. You need to build up the soil microbes and keep them well fed. Throwing down a thin layer of compost will help rid the thatch and introduce/add soil microbes. After that keep them well fed by mulch mowing and fertilizing with organic fertilizer. That includes but is not limited to Milorganite (if it's available in your area), soybean meal, cracked corn, alfalfa pellets, mulching mowing leaves in the spring etc. Keep chemical fertilizers and insect killing chemicals to a minimum.
I just put down 100 lbs of chicken crumble that I bought at Tractor Supply for $15/50 lb bag. It has the meal, cracked corn and other stuff you mentioned. The wild birds were loving it for about 6 hours then it rained and washed the stuff down to the roots of my lawn. It is very inexpensive organic fertilizer. I also put out a large bag of Milorganite as it has the iron to green up the grass.
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Also as stated in the post, greenworks didn't honor orders in the previous deal and it was a bait and switch.
1st pic - shows the dead grass we got out. It filled the whole bin.
2nd pic - is the lawn after detaching and reseeding.
3rd pic - is the final result after 4 weeks and watering 2 times a day.
101 Comments
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I do not regret the purchase but it is frustrating that after each season I have to replace a quarter of the tines.
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The first time you do it you'll be like.,... OMG WTF did I do to the lawn?!?!?!? but fertilize and hopefully mother nature will cooperate and rain - and within a few weeks the lawn will really pop.
It's probably not something you need to do yearly, and that depends on your cutting habits - if you bag your grass, that leaves FAR less to settle and eventually become thatch, so you'll also have to dethatch less.
a 43 lb bag of a Scotts product is $59 and treats 15k sq ft or just under $10 per 2500 sq ft. (~ 7 lb of product/2500 sq ft) Milorganite? $20 for 32 lb which also treats the same 2500 sq ft, or over double the price and 4+ times the weight per sq ft.
Also someone mentioned the commercial grade aerators for rent at HD. You can buy a tow behind plug aerator that can be pulled by a standard lawn tractor and will do a pretty good job. Agri-Fab makes a few versions and can be purchased from Lowes or Amazon. Might be a good investment if you have a lot of yard or acreage and want to aerate every year or so.
My neighbor had a spike aerator that I borrowed and it just would not do the job here in Tennessee. Too much clay. Even after a rain, loaded with multiple cinderblocks, it just bounced around on top of the dirt.
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