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Superior 15-0-15 Liquid Fertilizer Nitrogen & Potash Lawn Food - Concentrated Spray- Any Grass Type- Simple Lawn Solutions Green, Growth - Humic Acid - Kelp Seaweed - Phosphorus-Free (32 Ounce)

4.3 4.3 out of 5 stars 2,652 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Garden Fertilizers by Simple Lawn Solutions

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32 Ounce

Purchase options and add-ons

Brand Simple Lawn Solutions
Item Weight 32 Ounces
Item Form Liquid
Coverage 200
Liquid Volume 15 Liters

About this item

  • Liquid Lawn Fertilizer: Contains no phosphorus and has a 15-0-15 nutrient ratio, is the ideal choice if you wish to keep your lawn in good condition or if you notice symptoms of nitrogen and potassium deficiency in your lawn
  • The Power of Nitrogen & Potassium Blended with Humic Acid: Intensify green and growth while providing key nutrients for turf hardiness.
  • Blended with 15% Nitrogen. Nitrogen is a major component of chlorophyll where plants get their green coloring. Nitrogen encourages vigorous growth for the development of a dense attractive lawn.
  • Contains 15% Potassium. Potassium can enhance the plant’s endurance if a deficiency is present. Potassium is involved in carbohydrate formation, photosynthesis, enzyme activation, and the formation of proteins.
  • Blended with Humic Acid: Our Humic Acid is derived from the highest quality humate source, leonardite. Leonardite is considered by many to be the highest quality form of Humic Acid
  • Attached Easy to use Sprayer: 15-0-15 Liquid lawn Food comes with an attached ready to use sprayer. Hook to your hose to apply. Covers 3,200 square feet.
  • Can Be Used on All Grass types: Including Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Palmetto & Bluegrass.

Additional Details

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Customer ratings by feature

Easy to use
4.5 4.5
Style
4.1 4.1
Accuracy
4.0 4.0
Value for money
3.9 3.9
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Superior 15-0-15 Liquid Fertilizer Nitrogen & Potash Lawn Food - Concentrated Spray- Any Grass Type- Simple Lawn Solutions Green, Growth - Humic Acid - Kelp Seaweed - Phosphorus-Free (32 Ounce)

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$23.77 ($0.74/Ounce)
Get it as soon as Tuesday, Apr 2
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$23.77 ($0.75/Fl Oz)
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$24.77 ($0.77/Ounce)
Get it as soon as Tuesday, Apr 2
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Sold by Custom Liquid Solutions and ships from Amazon Fulfillment.
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Superior 15-0-15 Liquid Fertilizer Nitrogen & Potash Lawn Food - Concentrated Spray- Any Grass Type- Simple Lawn Solutions Green, Growth - Humic Acid - Kelp Seaweed - Phosphorus-Free (32 Ounce)


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Product Description

Simple Lawn Solutions: 15-0-15 is a Phosphate-free nutritional fertilizer. Providing key nutrients for top green and growth, while providing essential ingredients for turf vigor. Contains Humic acids, potash, and sulfur. Use to maintain the lawn or to treat nutrient deficiencies. Keep your lawn watered sufficiently to ensure nutrients are absorbed properly. The features and benefits are Premium 15-0-15 Liquid Lawn Food Nutritional Supplement, Enhance Green & Growth, Phosphate-free Lawn Food, Great for Sandy Soils, Great for Every Grass Type, Contains Humic Acid, Made & Manufactured in the USA, Used Commercially. Can Be Used on All Grass types: Including Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Palmetto & Bluegrass. Comes with Ready-to-use Hose end sprayer. Designed to be easily applied.

Compare with similar items

This Item
Superior 15-0-15 Liquid Fertilizer Nitrogen & Potash Lawn Food - Concentrated Spray- Any Grass Type- Simple Lawn Solutions Green, Growth - Humic Acid - Kelp Seaweed - Phosphorus-Free (32 Ounce)
Simple Lawn Solutions Superior 15-0-15 Liquid Fertilizer Nitrogen & Potash Lawn Food - Concentrated Spray- Any Grass Type- Green, Growth - Humic Acid - Kelp Seaweed - Phosphorus-Free (32 Ounce)
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Price$23.77$18.99$38.12$49.99$127.77
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it Apr 2 - 3
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Easy to use
4.5
4.6
4.5
4.7
Value for money
3.9
4.3
4.3
4.4
Scent
4.2
3.4
3.4
Sold By
Custom Liquid Solutions
Custom Liquid Solutions
Esbenshades Garden Center
Custom Liquid Solutions
Custom Liquid Solutions
form
Liquid
Liquid
Liquid
Liquid
Liquid
coverage
200
Full
Full
1
Medium
liquid volume
15 liters
1 quarts
1 gallons
1 gallons
specific uses
Lawn
Lawn
Lawn Fertilizer
Lawn
Lawn

Customer reviews

4.3 out of 5 stars
4.3 out of 5
2,653 global ratings

Customers say

Customers like the performance, color, and ease of use of the lawn fertilizer. For example, they mention it's easy to apply, helps to keep the weeds out, and is a great product for Zoysia lawns. Some are happy with speed, and growth. That said, opinions are mixed on value.

AI-generated from the text of customer reviews

138 customers mention106 positive32 negative

Customers like the performance of the fertilizer. They mention that it works well, has great results, and is convincing. Some say that the improvement has been huge in just under 3 weeks. Overall, customers are satisfied with the product's performance and recommend it to others.

"...Overall good product, balanced/complete feeding for your lawn...." Read more

"...after applying the two products and my Rye has taken off well, really well...." Read more

"...I’ve applied root hume and the nitrogen feed twice. Stuff is incredible." Read more

"Spray bottle didn’t work!" Read more

99 customers mention86 positive13 negative

Customers like the color of the fertilizer. They say that their grass turns a richer green, and the lawn is very green and lush. Some mention that the more weeds die, and their lawn is getting very green. Overall, most are satisfied with the color and appearance of their lawn after using the product.

"...The results I saw was a very quick green up and spreading of the stolons of both the Bermuda and Zoysia...." Read more

"...the “business” is done, you couldn’t even tell as the grass is green and just beautiful...." Read more

"Great fertilizer for warm season centipede grass. This low nitrogen, zero phosphorous liquid fertilizer is the best I have used on my centipede lawn...." Read more

"...The green is a perfect color and it somehow made my crispy, fried grass look healthy and lush. It was really quick and easy...." Read more

74 customers mention72 positive2 negative

Customers find the fertilizer easy to use and apply. They say it's simple, cost effective, and convenient. Customers also say it works well and is easy to attach to a garden hose.

"The product was easy to apply and coverage was accurate to the 3,400 sqft label...." Read more

"Easy and quick application.First application did little. Second application perked the lawn up. Product works, a little slower grandler...." Read more

"...It’s super simple, cost effective (way cheaper than hiring a service and much less expensive than many other products I’ve seen)...." Read more

"...No leaks or clogs with the hose end bottles. Again easy to use and I was impressed. Overall I have now used 4 of your products...." Read more

15 customers mention15 positive0 negative

Customers are satisfied with the weed-killing capabilities of the fertilizer. They mention it's a great product that helps keep the worms out of their lawn. Customers also say it'll help keep their lawn healthy and green during the heat stressful months. They say it kills nearly all the s weeds and provides the nourishment it needs to be healthy.

"...We have nearly 1 year old sod on a new construction home. The top soil is good but its depth is very inconsistent and below the top soil that the..." Read more

"...and watering the lawn the few days afterwards it really helped with my grass!..." Read more

"...It has really helped to keep my lawn healthy and green during the heat stressful months of July and August in Michigan...." Read more

"...And hardly any weeds have come up this spring. I'am sold on this fertilizer." Read more

13 customers mention10 positive3 negative

Customers like the speed of the fertilizer. They mention that it works fast, is easy to apply, and was received quickly. Some say that the liquid is faster than the powder, and that it makes the shipping very easy.

"...It was really quick and easy. My neighbor took his dog for a walk and by the time he came back, it was done...." Read more

"...The product works fast...." Read more

"...I also love that it is natural and concentrated, it made the shipping very easy!" Read more

"...It is now a month later. We've had some rain. The front yard is still growing much slower than the back yard, like always...." Read more

10 customers mention10 positive0 negative

Customers are happy with the growth of their lawn after using the fertilizer. They say it has visibly grown and gotten greener. Customers also say that it has enhanced the growing process, keeping the grass growing and nice and green. They mention that the grass is growing faster and greener, smoothing out any weeds. They also say the lawn has perked up considerably and is exploding with new growth.

"...So far the grass has responded with aggressive new, healthy growth...." Read more

"...I have seen a good amount of lateral growth in my yard and many bare areas in my yard has improved. I believe the high nitrogen level has helped...." Read more

"...The grass was growing faster and greener, smoothering out any weeds I had." Read more

"...My lawn is a much darker green and looks healthier. Grows super fast as well." Read more

36 customers mention11 positive25 negative

Customers are mixed about the value of the fertilizer. Some mention it's a great value, while others say it'll be a big waste of time and money.

"Tried it on 1/4 of my 2 acre yd. Sandburs horrible. Poor soil feeds sweeds. So trying to fix that." Read more

"...You can really smell the fish in this product.I think it's a little expensive for what you get, especially when the hose-end doesn't work...." Read more

"...It’s super simple, cost effective (way cheaper than hiring a service and much less expensive than many other products I’ve seen)...." Read more

"...However, this didn't seem to work at all, in fact, one area completely died back!I am disappointed and will have to replant my lawn soon." Read more

11 customers mention3 positive8 negative

Customers are dissatisfied with the leakage of the fertilizer. They mention that it was leaking all over in the box with a puncture hole in the top of the container. The nozzle that attaches to the hose had a major leak and didn't spray evenly. The seal was broken and some of the product had spilled out side.

"...However, after attaching to my garden hose, the bottle started leaking the concentrate... just be careful." Read more

"...It was leaking all over in the box with a puncture hole in the top of the container...." Read more

"...No leaks or clogs with the hose end bottles. Again easy to use and I was impressed. Overall I have now used 4 of your products...." Read more

"...However, the seal was broken and some of the product had spilled out side of the packaging and was lost...." Read more

Best Product I've Found!! Wonderful!
5 Stars
Best Product I've Found!! Wonderful!
I switched to a liquid fertilization system and I wanted something that would be safe for the pets and give me the results I needed. I contacted the company via Amazon with my soil test results and got a few recommendations, which for me was the Soil Loosener/Conditioner, Humic Fulvic Acid (Liquid Carbon), and Superior Nitrogen & Potash. I generally apply a bit less than recommended, but more frequently and I’ve never been happier with the results. I do add the Advanced 16-4-8 a few times a year, as well as organic insecticide. Other than mowing and mulching, those are the only products I’m using.I started with a mud pit of a yard 4 years ago when I bought the home and finally focused on the yard last summer by starting the overseeding and fertilizer process. The icing on the cake was the nutrients this year from Simple Lawn Solutions. I’ve had countless neighbors ask how I got such a green yard when most of the neighborhood was yellow dead grass.Having pets is also rough on the yard and even in the backyard where the “business” is done, you couldn’t even tell as the grass is green and just beautiful. I do find the liquid so much easier as you can clearly see where you’ve sprayed and what’s left. I use a tow-behind sprayer on my lawnmower and usually spray as I mow and then do a final round before calling it a day. It’s super simple, cost effective (way cheaper than hiring a service and much less expensive than many other products I’ve seen). I couldn’t recommend this enough and look forward to seeing what I can do next year as well!
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Top reviews from the United States

Reviewed in the United States on August 31, 2019
Size: 32 OunceVerified Purchase
Customer image
5.0 out of 5 stars Easy to apply and effective
Reviewed in the United States on August 31, 2019
The product was easy to apply and coverage was accurate to the 3,400 sqft label.

I applied it to Bermuda (front) and Zoysia (back) lawn that I have. Both types of grass are very nitogen hungry turf.

Applied about 3 weeks ago following aeration and topdressing to really "push" a topgreening and root development before the growing season is over for the year. No rain was in the forecast, so granular application was a "no-go", spray application was the best solution.

The lawn had not had fertilizer in a while so following the application, the results were quick but limited most like due to fact that the lawn was starving. I could see this being most effective in a routine, monthly feeding to get the best results. Using it to "bring it back from the edge" like I did is not a fair assessment.

The product is a broad spectrum of beneficial activities including humic acid and iron. Most granular fertilizers are N-P-K only and leave off/out supportive macro/micro nutrients and iron, this spray was very complete.

The results I saw was a very quick green up and spreading of the stolons of both the Bermuda and Zoysia. This was especially evident with new growth coming through the topdressing.

I would purchase this again, but will purchase it in a 1 gallon (or so) jug to refill the spray bottle to make monthly feedings more cost effective.

Overall good product, balanced/complete feeding for your lawn. The bottle and quantity is especially good if you don't have a huge yard (where you can get at least 2 feedings/bottle.

One thing to note. The bottle arrived in good condition, no leaks. However, after attaching to my garden hose, the bottle started leaking the concentrate... just be careful.
Images in this review
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Customer imageCustomer imageCustomer imageCustomer image
23 people found this helpful
Report
Reviewed in the United States on August 18, 2019
Size: 32 OunceVerified Purchase
10 people found this helpful
Report
Reviewed in the United States on November 5, 2023
Size: 1 GallonVerified Purchase
One person found this helpful
Report
Reviewed in the United States on September 13, 2020
Size: 1 GallonVerified Purchase
Customer image
5.0 out of 5 stars Best Product I've Found!! Wonderful!
Reviewed in the United States on September 13, 2020
I switched to a liquid fertilization system and I wanted something that would be safe for the pets and give me the results I needed. I contacted the company via Amazon with my soil test results and got a few recommendations, which for me was the Soil Loosener/Conditioner, Humic Fulvic Acid (Liquid Carbon), and Superior Nitrogen & Potash. I generally apply a bit less than recommended, but more frequently and I’ve never been happier with the results. I do add the Advanced 16-4-8 a few times a year, as well as organic insecticide. Other than mowing and mulching, those are the only products I’m using.

I started with a mud pit of a yard 4 years ago when I bought the home and finally focused on the yard last summer by starting the overseeding and fertilizer process. The icing on the cake was the nutrients this year from Simple Lawn Solutions. I’ve had countless neighbors ask how I got such a green yard when most of the neighborhood was yellow dead grass.

Having pets is also rough on the yard and even in the backyard where the “business” is done, you couldn’t even tell as the grass is green and just beautiful. I do find the liquid so much easier as you can clearly see where you’ve sprayed and what’s left. I use a tow-behind sprayer on my lawnmower and usually spray as I mow and then do a final round before calling it a day. It’s super simple, cost effective (way cheaper than hiring a service and much less expensive than many other products I’ve seen). I couldn’t recommend this enough and look forward to seeing what I can do next year as well!
Images in this review
Customer image Customer image Customer image Customer image Customer image
Customer imageCustomer imageCustomer imageCustomer imageCustomer image
15 people found this helpful
Report
Reviewed in the United States on November 13, 2023
Size: 1 GallonVerified Purchase