LawnStar

Liquid Lawn Dethatcher

Beneficial microbes & enzymes compost and digest harmful thatch

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$2795& FREE Shipping.

$5795& FREE Shipping.

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  • Allows water, air and nutrients to soak deep into the root system

  • Decreases risk of diseases, pests and trapped roots

  • Natural formula leveraging enzymes, biostimulants, humates + molasses

  • Decomposes thatch, grass clipping and other biodegradable lawn waste

  • Combine, or use as an alternative to manual dethatching

  • Treats up to 6,400 sq. ft.

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4.5/5

Reviews

48

Total Reviews


Customer review
Reviews

Ryan Underwood

04/06/2020

I’ve been removing thatch via a thatch take and it’s tiring work and is especially hard on the lower back. I’ve seen a marked improvement in the back yard.

Customer review
Reviews

Catherine Zampitella

04/05/2020

I was thrilled when I found this product. My yard is so compacted with thatched material that I struggle to get a shovel through the top 4 inches when trying to plant anything. My house is 100+ years old. I doubt if the lawn has ever been dethatched. This product was easy to use and I can already see a difference. I will probably need to apply it twice a month through the summer. I plan on getting Lawn Dethatched from this company again...they make it SO easy for me!

Customer review
Reviews

Megan Oaklund

04/01/2020

Just received the product. Instructions were easy to use and understand. Can’t wait to see the results!

Customer review
Reviews

Cleatrice Price

03/28/2020

I live in Central Florida and have Saint Augustine grass. I got a fungus in my lawn which killed a lot of grass before I was able to get the fungus under control. I was left with a lot of thatch. I tried the LawnStar Liquid Lawn Dethatcher and saw some improvement so I decided to try it again because I can see the thatch weakening and some coming out when mowing. It is very hot and dry here so I will use the hose end sprayer to apply to an area and water in well

Customer review
Reviews

Gary Burak

03/27/2020

I used the product during a rainy period . The rain helped it to work better and I didn't have to keep it damp !

Package Dimensions

7.6 x 5.2 x 2.2 inches

Item Weight

2.75 pounds

Shipping Weight

2.75 pounds

Safety Data Sheet

Click here to download

Usage Instructions


For best results apply LawnStar Liquid Lawn Dethatcher before 10 am, or after 5 pm. This allows for decreased evaporation and greater efficacy. Application during the afternoon should be avoided.

Application should be repeated every two to four weeks (depending on thatch layer thickness) for best results.

May cause staining. Shake product well before use.

For pump-up garden sprayers

1. Mix 4–8 oz. LawnStar Liquid Lawn Dethatcher per 1,000 sq. ft. Premix with a generous amount of water to ensure sufficient spray volume for application.

2. Apply evenly across 1,000 sq. ft. of lawn

3. Water lawn for 20–30 minutes after application

For hose-end sprayers

1. Pour LawnStar Liquid Lawn Dethatcher into hose-end sprayer bottle

2. Set sprayer to "1 oz." setting

3. Evenly apply 4–8 oz. concentrate per 1,000 sq. ft. of lawn, depending on thatch layer thickness

Warranty & Support


Covered by the Evergreen Guarantee: If you aren’t satisfied with the results you get from trying any one of our products, contact us within 30 days of your order date and we will arrange a no-questions-asked return plus refund.

Support Email: [email protected]

Safety Information: Although we opt for the safest ingredients, it is important to treat it carefully as you would any other lawn and garden product. Keep out of reach of children. Do not ingest. Detailed safety information can be found on the backside of the product label, or by clicking on the Specification tab and reviewing the Safety Data Sheet.

Are you keeping an eye on the thatch layer?

Although often overlooked, keeping an eye on the thatch layer is pivotal for the long-term health of your lawn.

Thatch refers to the layer of dead turfgrass tissue that sits between the grass and soil/root system below. And while thatch is beneficial when maintained correctly, if it becomes too thick (more than half an inch), it has the opposite effect and becomes detrimental to your lawn.

A thick thatch layer often compliments compacted soil. It blocks air, water and nutrients from soaking deep into the soil and root system, effectively starving your grass from what it needs to sustain itself. On top of all that, a thick thatch layer promotes fungus, disease and insect infestation.

As Benjamin Franklin once rightly said “an ounce of prevention is worth a pound of cure”.

Are you at risk?

We could harp on about all the risks associated with letting your thatch layer get out of hand. As a general rule of thumb, you should be dethatching your turf at least a couple times a year. But if you…

  • Have heavy clay soil
  • Overwater
  • Mow too high
  • Use too many herbicides or pesticides
  • Use too many fertilizers

You may be even more susceptible to thatch overgrowth.

Meet LawnStar® Liquid Lawn Dethatcher

LawnStar® Liquid Lawn Dethatcher utilizes natural, front-line technology to combat thatch overgrowth from an unconventional angle–from beneath. By combining the powerful properties of biostimulants like enzymes, humates and molasses, our liquid dethatcher raises heat by encouraging microbial activity, creating an exothermic reaction that breaks down thatch.

In turn, as the thatch begins to melt, the organic stuff simultaneously gets eaten up, effectively feeding your turf.

It’s environmentally friendly and provides the perfect substitute if your turf isn’t able to be manually dethatched due to the time of season (or for any other reason).

Builds an armed troop of beneficial microbes in your topsoil

Begin applying in the warmer months and after a couple applications you’ll begin to establish a stable population of microbes that will fortify and protect your turf all the way through to the cold seasons.

Can be used alongside LawnStar® Fertilizers and other LawnStar® Adjuvants + Amendments to create a year-round, rock-solid lawn care program that’ll have your neighbors left scratching their heads trying to figure out how you did it.

environmentally friendly product

Environmentally Friendly

easy to use

Easy to Use

suitable for all grass types

All Grass Types


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4.5/5

Reviews

48

Total Reviews


Customer review
Reviews

Ryan Underwood

04/06/2020

I’ve been removing thatch via a thatch take and it’s tiring work and is especially hard on the lower back. I’ve seen a marked improvement in the back yard.

Customer review
Reviews

Catherine Zampitella

04/05/2020

I was thrilled when I found this product. My yard is so compacted with thatched material that I struggle to get a shovel through the top 4 inches when trying to plant anything. My house is 100+ years old. I doubt if the lawn has ever been dethatched. This product was easy to use and I can already see a difference. I will probably need to apply it twice a month through the summer. I plan on getting Lawn Dethatched from this company again...they make it SO easy for me!

Customer review
Reviews

Megan Oaklund

04/01/2020

Just received the product. Instructions were easy to use and understand. Can’t wait to see the results!

Customer review
Reviews

Cleatrice Price

03/28/2020

I live in Central Florida and have Saint Augustine grass. I got a fungus in my lawn which killed a lot of grass before I was able to get the fungus under control. I was left with a lot of thatch. I tried the LawnStar Liquid Lawn Dethatcher and saw some improvement so I decided to try it again because I can see the thatch weakening and some coming out when mowing. It is very hot and dry here so I will use the hose end sprayer to apply to an area and water in well

Customer review
Reviews

Gary Burak

03/27/2020

I used the product during a rainy period . The rain helped it to work better and I didn't have to keep it damp !

Customer review
Reviews

Michael Tatum

03/22/2020

Had the opportunity to use this about a week before my vacation. I knew the grass would be longer than usual but was happy to see how much greener it was because the roots seemed stronger because they were able to breath better & have a better nutrient uptake!!

Customer review
Reviews

Carl And Rick Diboff

03/15/2020

1st time waiting to see if it actually works

Customer review
Reviews

Dawnmarie Trimblett

03/14/2020

Haven't had the chance to try the product

Customer review
Reviews

Michael Merlino

03/14/2020

I put it on some dead areas yesterday. I checked it today and there is some reaction going on. From all the comments I read on Amazon I am expecting good results. I will reply back with more information after two weeks.

Customer review
Reviews

Bret Watkins

03/13/2020

Was not sure how it would work. However very surprised and happy how much better my lawn looks

Package Dimensions

7.6 x 5.2 x 2.2 inches

Item Weight

2.75 pounds

Shipping Weight

2.75 pounds

Safety Data Sheet

Click here to download

Usage Instructions


For best results apply LawnStar Liquid Lawn Dethatcher before 10 am, or after 5 pm. This allows for decreased evaporation and greater efficacy. Application during the afternoon should be avoided.

Application should be repeated every two to four weeks (depending on thatch layer thickness) for best results.

May cause staining. Shake product well before use.

For pump-up garden sprayers

1. Mix 4–8 oz. LawnStar Liquid Lawn Dethatcher per 1,000 sq. ft. Premix with a generous amount of water to ensure sufficient spray volume for application.

2. Apply evenly across 1,000 sq. ft. of lawn

3. Water lawn for 20–30 minutes after application

For hose-end sprayers

1. Pour LawnStar Liquid Lawn Dethatcher into hose-end sprayer bottle

2. Set sprayer to "1 oz." setting

3. Evenly apply 4–8 oz. concentrate per 1,000 sq. ft. of lawn, depending on thatch layer thickness

Warranty & Support


Covered by the Evergreen Guarantee: If you aren’t satisfied with the results you get from trying any one of our products, contact us within 30 days of your order date and we will arrange a no-questions-asked return plus refund.

Support Email: [email protected]

Safety Information: Although we opt for the safest ingredients, it is important to treat it carefully as you would any other lawn and garden product. Keep out of reach of children. Do not ingest. Detailed safety information can be found on the backside of the product label, or by clicking on the Specification tab and reviewing the Safety Data Sheet.

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