---
product_id: 75148791
title: "Superior 15-0-15 Liquid Lawn Fertilizer - Lawn Food for Growth & Green - Nitrogen, Potassium, Humic, Fish & Seaweed - Any Grass Type- Simple Lawn Solutions - All Season- Concentrate (1 Gallon)"
brand: "simple lawn solutions"
price: "A$158"
currency: AUD
in_stock: true
reviews_count: 8
category: "Simple Lawn Solutions"
url: https://www.desertcart.com.au/products/75148791-superior-15-0-15-liquid-lawn-fertilizer-lawn-food-growth
store_origin: AU
region: Australia
---

# Infused with humic acid, fish & seaweed extracts 15-0-15 NPK ratio for balanced growth Liquid concentrate covers 12,800 sq ft Superior 15-0-15 Liquid Lawn Fertilizer - Lawn Food for Growth & Green - Nitrogen, Potassium, Humic, Fish & Seaweed - Any Grass Type- Simple Lawn Solutions - All Season- Concentrate (1 Gallon)

**Brand:** simple lawn solutions
**Price:** A$158
**Availability:** ✅ In Stock

## Summary

> 🌱 Elevate Your Lawn Game — Because Ordinary Grass Just Won't Cut It!

## Quick Answers

- **What is this?** Superior 15-0-15 Liquid Lawn Fertilizer - Lawn Food for Growth & Green - Nitrogen, Potassium, Humic, Fish & Seaweed - Any Grass Type- Simple Lawn Solutions - All Season- Concentrate (1 Gallon) by simple lawn solutions
- **How much does it cost?** A$158 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/75148791-superior-15-0-15-liquid-lawn-fertilizer-lawn-food-growth)

## Best For

- simple lawn solutions enthusiasts

## Why This Product

- Trusted simple lawn solutions brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Coverage:** One gallon treats up to 12,800 sq ft—perfect for large properties or professional use.
- • **Turbocharge Your Turf:** Powerful 15-0-15 nutrient blend fuels lush, vibrant green growth all season long.
- • **Nature’s Secret Boost:** Enriched with premium humic acid, fish protein, and North Atlantic seaweed for superior soil vitality.
- • **Universal Grass Compatibility:** Safe and effective on Bermuda, Zoysia, St. Augustine, Fescue, Kentucky Bluegrass, and more.
- • **Made in the USA with Expertise:** Crafted by a family-owned business with 25+ years in professional turf care—trusted quality you can count on.

## Overview

Superior 15-0-15 Liquid Lawn Fertilizer is a concentrated, phosphate-free formula designed to promote vigorous green growth and turf hardiness across all grass types. Infused with a unique blend of nitrogen, potassium, humic acid, fish protein, and seaweed extracts, this 1-gallon liquid fertilizer covers up to 12,800 square feet, making it ideal for large lawns and professional applications. Manufactured in the USA by a family-owned company with decades of turf industry experience, it supports rapid nutrient uptake and sustained lawn vitality throughout spring, summer, and fall.

## Description

One Gallon Covers 12,800 square feet: Refill Our 15-0-15 Sprayer Bottle Or Use With A Pump-up Or Other Hose-end Sprayer. Great For Large Properties & Landscapes, Professional Lawn Services Or Multiple Applications. Simple Lawn Solutions: 15-0-15 Is A Phosphate-free Nutritional Liquid Lawn Fertilizer. Providing Key Nutrients For Green And Growth, While Providing Essential Ingredients For Turf Vigor. Contains Nitrogen, Humic, Potash, Fish And Seaweed. 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, 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 Grass, St. Augustine Grass, Zoysia Grass, Tall Fescue, Fine Fescue & Kentucky Bluegrass.

Review: Very easy to use, follow label rates. Great results. - It has been about two weeks since I applied the Humic Acid and Soil Loosener and I thought this would be a great time to summarize my application and results. I recently embarked on a lawn leveling project which was the first time ever attempting this type of improvement to our yard. My timing could have been better because our temperatures began climbing into the mid/high 80s. I was spreading approximately 5 cubic yards over 4000 sqft of KBG. Once I completed the leveling I decided to try the above applications on the front yard (1000 sq ft). I used the label recommended rate for both products using an Ortho hose end sprayer. The products flowed very smoothly through the sprayer and I was happy with distribution. My application went down approximately three days after leveling and watering in the sand. I followed the application with a good 1/2 “ of watering from my irrigation system. Nearly two weeks later temperatures have maintained in the high 70s, low 80s and my lawn has recovered amazingly. I really stressed it with the low cut/sand leveling during hot temps. 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 build brought in, we have glacial till. I am hoping that with time the soil loosener and humic will penetrate deeper and allow the root systems to thrive farther into the soil. So far the grass has responded with aggressive new, healthy growth. My height of cut is now down to 1.5” and I plan on going to 1 inch this afternoon. My backyard is 3000 sqft and I did not treat it yet so I could compare results. The back yard is lagging behind the front in both new growth and thickness. My plan is to treat the back yard with the same application rates as I did in the front and document the progress with pictures. I will be applying the 15-0-15 fertilizer at the same time to both yards as well. I am extremely happy with the results that we have seen and how quickly the lawn bounced back. Great product that I would highly recommend to others!
Review: Easy to apply and effective - 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.

## Features

- 15-0-15 Lawn Fertilizer To Promote Greening, Growth And Turf Hardiness: The Power Of Nitrogen & Potassium Blended With Humic, Fish And Seaweed. Intensify Green And Growth While Providing Key Nutrients For Turf Hardiness.
- Can Be Used On All Grass Types: Lawn Fertilizer For Bermuda Grass, St. Augustine Grass, Zoysia Grass, Tall Fescue, Fine Fescue & Kentucky Bluegrass.
- Liquid Lawn Fertilizer: 15-0-15 Nutrient Ratio Provides Balanced Nutrients For Overall Lawn Vigor. Liquid Fertilizer For Spring, Summer And Fall.
- Nitrogen Lawn Fertilizer: Nitrogen Encourages Vigorous Growth For The Development Of A Dense Green Attractive Lawn. Nitrogen Is The Most Essential Macronutrient For Turf.
- Potassium Fertilizer For Lawns: Potassium Can Enhance The Plant’s Endurance To Stress If A Deficiency Is Present. This Concentrated Liquid Fertilizer Provides Essential Nutrients.
- 15-0-15 Fertilizer Blended With Humic, Fish And Kelp: Our Humic Is Derived From The Highest Quality Humate Source, Leonardite. Our Ascophyllum Nodosum Seaweed Harvested In The Icy North Atlantic.
- Economical Size: 1 Gallon Bottle Covers 12,800 Square Feet. Refill 15-0-15 32 Ounce Bottle With Sprayer Or Use With A Backpack Sprayer, Pump Up Sprayer Or Other Hose-end Sprayer.
- Use Alongside Fertilizer Program. 15-0-15 Liquid Fertilizer Can Be Used With Your Current Fertilizer Program For A Quick Nutrient Uptake.
- Produced In The United States: 15-0-15 Is Manufactured In The United States Of America, By A Family Owned Business With Over 25 Years Of Former Experience In The Commercial Professional Turf Industry.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DRNX283 |
| Best Sellers Rank | #18,050 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #583 in Garden Fertilizers |
| Brand | Simple Lawn Solutions |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,925) |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 2 pounds |
| Item model number | 15 15 NPK |
| Liquid Volume | 1 Gallons |
| Manufacturer | UAS of America |
| Number of Items | 1 |
| Package Dimensions | 11.73 x 6.93 x 4.25 inches |
| Specific Uses For Product | Lawn |
| UPC | 705672000975 |
| Unit Count | 128 Fluid Ounces |

## Product Details

- **Brand:** Simple Lawn Solutions
- **Item Form:** Liquid
- **Item Weight:** 32 Ounces
- **Liquid Volume:** 1 Gallons
- **Specific Uses For Product:** Lawn

## Images

![Superior 15-0-15 Liquid Lawn Fertilizer - Lawn Food for Growth & Green - Nitrogen, Potassium, Humic, Fish & Seaweed - Any Grass Type- Simple Lawn Solutions - All Season- Concentrate (1 Gallon) - Image 1](https://m.media-amazon.com/images/I/71kryTVAJ7L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very easy to use, follow label rates. Great results.
*by J***N on August 18, 2019*

It has been about two weeks since I applied the Humic Acid and Soil Loosener and I thought this would be a great time to summarize my application and results. I recently embarked on a lawn leveling project which was the first time ever attempting this type of improvement to our yard. My timing could have been better because our temperatures began climbing into the mid/high 80s. I was spreading approximately 5 cubic yards over 4000 sqft of KBG. Once I completed the leveling I decided to try the above applications on the front yard (1000 sq ft). I used the label recommended rate for both products using an Ortho hose end sprayer. The products flowed very smoothly through the sprayer and I was happy with distribution. My application went down approximately three days after leveling and watering in the sand. I followed the application with a good 1/2 “ of watering from my irrigation system. Nearly two weeks later temperatures have maintained in the high 70s, low 80s and my lawn has recovered amazingly. I really stressed it with the low cut/sand leveling during hot temps. 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 build brought in, we have glacial till. I am hoping that with time the soil loosener and humic will penetrate deeper and allow the root systems to thrive farther into the soil. So far the grass has responded with aggressive new, healthy growth. My height of cut is now down to 1.5” and I plan on going to 1 inch this afternoon. My backyard is 3000 sqft and I did not treat it yet so I could compare results. The back yard is lagging behind the front in both new growth and thickness. My plan is to treat the back yard with the same application rates as I did in the front and document the progress with pictures. I will be applying the 15-0-15 fertilizer at the same time to both yards as well. I am extremely happy with the results that we have seen and how quickly the lawn bounced back. Great product that I would highly recommend to others!

### ⭐⭐⭐⭐⭐ Easy to apply and effective
*by A***O 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.

### ⭐⭐⭐⭐ Effective but Expensive
*by D***E on July 24, 2025*

I have used this product for several years and think it’s effective. Unfortunately I think the price is often too high so I bought it on Prime Day only because the price was more reasonable.

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-23*