LawnMutt Soil Amendment for a Large Lawn (1600-3200 sq. ft.) 2 Application Treatment For Dog Urine Spots In Lawn.

LawnMutt Soil Amendment for a Large Lawn (1600-3200 sq. ft.) 2 Application Treatment For Dog Urine Spots In Lawn.

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LawnMutt is an easy to apply, liquid soil amendment, for dog owners. Dog urine contains high levels of urea nitrogen. High concentrations of urea can damage a lawn's ability to absorb moisture. Healthy soil converts urea nitrogen into more lawn-friendly nitrate nitrogen that's easier for the lawn to absorb. LawnMutt repairs and enhances the soil's health, enabling it to process higher levels of urea. By metabolizing the excess urea you can prevent dog urine spots in your lawn. 

Are you interested in repairing and preventing dog urine spots on your lawn? Preventing urine damage is a process that varies from lawn to lawn. Our LawnMutt Soil Amendment in combination with one-on-one support has helped thousands of customers prevent urine damage to their lawn. We would like to help you with your lawn.

LawnMutt is a liquid concentrate that is best applied with an applicator that goes on your water hose. Our LawnMutt 2 Application Pack is available with or without a reusable Hose end applicator.


If you are new to our products we would love to help you get started. We encourage all our customers to take advantage of our Exclusive SoundStart Program.


This Large lawn 2 pack is formulated for lawns 1600-3200 sq ft. That would be the size of a large home with a lot size of 3/4 to 1 acre. 

Not sure the sq ft of your lawn? For reference, look at the pictures above for size comparison. The pictures above are of lawn areas approximately 1600-3200 sq. ft.  If you are still unsure email me a picture and I should be able to recommend a bottle size. My email address is

If your lawn is larger than 3200 sq. ft. we recommend dividing the lawn up into 3200 sq. ft. sections and treating each section separately. The applicator bottle when full will cover up to 3200 sq ft and if applied to a larger area will over dilute the product and decrease its effectiveness.

The application is as easy as watering. Simply pour the contents of one 16 oz. bottle into the applicator bottle and add 16 ounces of additional water. Set the green dial on the applicator to 2 oz. setting. Apply to the lawn area evenly until the applicator is empty. Water for 5-10 minutes after to saturate down to the root zone. It is that easy. no additional measuring or worrying.  

Repeat the process with the second bottle 3-6 weeks later to continue the repair process.  

After the second application, you should start to see a decrease in the number and severity of new urine spots as well as the shrinking of existing dead spots. 2 applications are usually enough to start the repair processes on all but the most severely damaged lawns. Severely damaged lawns can take a bit longer and a few additional applications. 

Due to the volume of urine applied to most lawns, regular applications every 6-8 weeks are recommended and prevention will get better with each application. 

LawnMutt is safe for people and pets when used as directed and no special safety requirements are needed.

Dead spots can be reseeded 7-14 days after application. 

To help keep your applications on a regular schedule we now offer a Subscription Service.  

 Depending on the severity of the urine damage 1-2 applications may not be enough to completely stop the new urine spots. To ensure all our new customers are satisfied with their results, check out our exclusive SoundStart Program. 

Customer Reviews

Based on 19 reviews
Kevin Hoffmann (Albany, US)

Not seeing a difference. Lawn is still spotty where my dogs go. I did get a response to my email on application instructions. This is newer sod thats looking worse by the day.

Jamey Lingo (Chandler, US)
Hard Yard

My yard is AZ clay soil was poorly taken care of by the previous owners and grass in bad shape. We have a Large male Great Dane that does not help matters. He leaves spots and kills grass if there is any. Many places could not even get grass to grow. I have applied Lawn Mutt 4 times now and much improvement - getting grass to actually grow and damage repair from dog spots. I will continue with the program - Thanks SoundSoil and Lawn Mutt.

Pat Holmes (Franklin, US)
This stuff works!

The damage has stopped! The grass is green and healthy! I’m so happy!!!!

Charles Catlin (Atlanta, US)

Seems to be working

Shawn Snyder (Chester, US)
Great product and the support was AWSOME!

I ordered this thinking I had dog urine spots that were making my fescue lawn brown. I ordered the product and applied like the instructions said. After the first application the brown spots seemed to be slowing, and after 4 weeks I applied the second dose, and saw some improvement. Jeff (owner) has emailed me to see how things were going and I told him. He sent me two more rounds to me at no charge. It was getting really hot here and I was watering to beat the band on this fairly new fescue sod, but to no avail. The lawn died out. Not due to the Lawn Mutt, but because we laid the sod too late in the winter spring changeover and it just was not to be. I had applied all four applications and it kept it alive as long as it could, but the summer was just too hot and I couldn't water it enough. That said, we laid new zoysia sod a couple of weeks ago on top of what was left of the fescue (cut way down short of course) where the applications of Lawn Mutt had been applied. I firmly believe that the Lawn Mutt made this new zoysia grass TAKE OFF! Within a week the zoysia sod lines were growing together very quickly, the grass is as green as it can be, and soft (like carpet), and that is great as I am trying to get it established before it turns cool and goes dormant. The product is awesome and the service was excellent even though it couldn't save my too late laid fescue sod. But I have seen the magic that this stuff provides in a different way than I thought. After seeing this, I may buy enough to treat my front yard next spring and lay zoysia sod out there as well. This stuff is great!!