---
product_id: 7906808
title: "Humic Acid Soil Amendment – Leonardite-Derived Liquid Concentrate for Improved Soil Structure & Nutrient Availability – OMRI Listed for Organic Use – 32 Oz"
brand: "gs plant foods"
price: "A$68"
currency: AUD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.au/products/7906808-humic-acid-soil-amendment-leonardite-derived-liquid-concentrate-for-improved
store_origin: AU
region: Australia
---

# Boosts soil nutrient uptake 32 fl oz concentrated formula OMRI certified organic Humic Acid Soil Amendment – Leonardite-Derived Liquid Concentrate for Improved Soil Structure & Nutrient Availability – OMRI Listed for Organic Use – 32 Oz

**Brand:** gs plant foods
**Price:** A$68
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your soil game—grow smarter, not harder!

## Quick Answers

- **What is this?** Humic Acid Soil Amendment – Leonardite-Derived Liquid Concentrate for Improved Soil Structure & Nutrient Availability – OMRI Listed for Organic Use – 32 Oz by gs plant foods
- **How much does it cost?** A$68 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/7906808-humic-acid-soil-amendment-leonardite-derived-liquid-concentrate-for-improved)

## Best For

- gs plant foods enthusiasts

## Why This Product

- Trusted gs plant foods brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pure Leonardite Power:** Sourced from premium deposits for rich, natural soil conditioning
- • **Root Zone Revitalizer:** Promotes balanced soil environment and robust root development without synthetic additives
- • **Effortless Compatibility:** Works with most fertilizers and soil programs for versatile garden use
- • **Certified Organic Confidence:** OMRI listed for seamless integration into organic and regenerative practices
- • **Unlock Soil’s Full Potential:** Enhances cation exchange capacity for maximum nutrient absorption

## Overview

Organic Liquid Humic Acid is a 32 fl oz concentrated soil amendment derived from premium Leonardite, designed to improve soil structure and nutrient availability. OMRI listed for organic use, it supports healthier root zones and is compatible with most fertilization programs, making it ideal for gardens, lawns, and greenhouse crops.

## Description

Organic Liquid Humic Acid,32 fl oz Concentrate

## Features

- IMPROVES SOIL STRUCTURE & NUTRIENT AVAILABILITY- GS Plant Foods Humic Acid Soil Amendment supports healthy soil by enhancing cation exchange capacity and helping the root zone access existing nutrients in the soil more efficiently. Derived from high-quality Leonardite.
- OMRI LISTED FOR ORGANIC USE- This product is OMRI Listed under the name GS Plant Foods Organic Liquid Humic Acid, making it suitable for use in certified organic growing programs and regenerative soil practices.
- DERIVED FROM PURE LEONARDITE- Our liquid humic acid is sourced from premium Leonardite deposits, providing a rich supply of naturally occurring organic matter that contributes to long-term soil health and conditioning.
- SUPPORTS A HEALTHIER ROOT ZONE- Humic substances help create a more balanced soil environment by improving nutrient exchange, buffering soil conditions, and supporting strong root-zone development—without synthetic additives or harsh ingredients.
- COMPATIBLE WITH MOST FERTILIZER & SOIL PROGRAMS Use with your existing fertilization schedule. Works well for gardens, houseplants, lawns, trees, greenhouse crops, vegetables, and landscape plants. Avoid mixing with low-pH or high-calcium formulations.

## Product Details

- **Brand:** GS Plant Foods
- **Item Weight:** 33 Ounces
- **Item Form:** Liquid
- **Liquid Volume:** 32 Fluid Ounces
- **Specific Uses For Product:** Plant Growth, Root Develpoment, Nutrient Uptake

## Images

![Humic Acid Soil Amendment – Leonardite-Derived Liquid Concentrate for Improved Soil Structure & Nutrient Availability – OMRI Listed for Organic Use – 32 Oz - Image 1](https://m.media-amazon.com/images/I/51d-mhUfgrL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Right now (!) tell the percentage of humic acid in this gallon. Why is it not listed on the bottle? Other sellers do this? How know this is legit?**
A: 12% Humic Acid is available on Amazon. Just search for it. According to the manufacture, this stuff  contains 8%; but they aren’t willing to label their product as such, so do you trust them? Personally, I’ll buy the 12%. Although it costs more per gallon, you’re actually getting more per dollar.

**Q: What percent humic does this have?**
A: It's weaker than humic acid sold by other brands. Can tell as soon as you open the bottle.

**Q: Why is guaranteed analysis of this product not listed anywhere? this should not be an amazon choice product until it can be proven.**
A: I don’t know why there is no guarantee analysis but I have been using this to bring my ponytail palms back from having root rot and it is working fantastic

**Q: What is the active and inactive ingredients?**
A: What you want to know is how much carbon is in this product compared to oxygen. Common humic acid has about 60% carbon and 40% oxygen, but that varies depending on the source. You also want to know how much humic acid is in this product. The answer is 8%. (NOT 80%)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Flower
*by M***C on July 5, 2025*

Prerry good atuff

### ⭐⭐⭐⭐⭐ It Really Works!
*by M***N on June 20, 2020*

I''m the facilities manager for one of the largest Inns/Hotels in New Hampshire. We average 200 wedding a year. We have a 2000 sf grass area where brides do their thing, this area is usually re-sodded every year but due to covid we were in no position to spend the money. I spent $15 for the bottle of Humic acid, did the entire area and the grass looks amazing. I ordered a bottle for my own lawn as did the owner of the Inn. Great product, easy to use and for the price, I have not seen anything like it in my 20 years as a facilities manager.

### ⭐⭐⭐⭐ Great humic acid for gardening.
*by S***W on October 10, 2020*

This liquid humic acid really helped my soil . Have used it with great results . Adds what your soil needs to grow nice heathy plants . Worked well with great results

## Frequently Bought Together

- Organic Liquid Humic Acid,32 fl oz Concentrate
- Organic Kelp Fertilizer by GS Plant Foods - Omri Certified (1 Quart) - Kelp Fertilizer for Gardens, Lawns & Soil
- LawnStar Liquid Iron (32 OZ) for Plants - Multi-Purpose, Suitable for Lawn, Flowers, Shrubs, Trees - Treats Iron Deficiency, Root Damage & Color Distortion – EDTA-Free, American Made

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**Shop now:** [https://www.desertcart.com.au/products/7906808-humic-acid-soil-amendment-leonardite-derived-liquid-concentrate-for-improved](https://www.desertcart.com.au/products/7906808-humic-acid-soil-amendment-leonardite-derived-liquid-concentrate-for-improved)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-12*