Can I mix it with my fertilizer?

Yes, with most liquid fertilizers. Not with low-pH or high-liquid-calcium products, and never with calcium nitrate.

First application: 4 oz per gallon of water, on up to 1,000 sq ft. Follow-ups: 2 oz per gallon per 1,000 sq ft.

As often as every 3 weeks in the growing season.

It's a soil amendment: 6% humic acid from leonardite, with no N-P-K listed. Use it alongside your fertilizer.

Gardens, houseplants, lawns, trees, greenhouses, row crops, ornamental plants and pastures.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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GS Plant Foods Liquid Humic Acid Soil Amendment for Lawn & Plants, 1 Gal

Product ID: 10257399

Details

Brand
GS Plant Foods
Item Form
Liquid
Item Weight
8 pounds
Liquid Volume
1 gallons
Specific Uses For Product
Plant Growth

🌱Derived from premium Leonardite

💧1 gallon liquid concentrate

⚗️OMRI Listed for organic use

R3911

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

PURE LEONARDITE POWER - Harness naturally rich organic matter for long-term soil health and structure improvement.
ROOT ZONE REVITALIZER - Enhances nutrient exchange and buffers soil conditions for stronger, healthier roots.
EFFORTLESS COMPATIBILITY - Works perfectly with most fertilizers and soil regimens—no synthetic additives needed.
CERTIFIED ORGANIC CONFIDENCE - OMRI listed for seamless integration into your organic and regenerative growing programs.
UNLOCK SOILS FULL POTENTIAL - Boost nutrient availability and root access with advanced cation exchange capacity.

GS Plant Foods Humic Acid is a 1-gallon liquid soil amendment derived from high-quality Leonardite, designed to improve soil structure and nutrient availability. OMRI listed for organic use, it supports healthier root zones by enhancing cation exchange capacity and nutrient uptake, compatible with most fertilizer programs for versatile application across gardens, lawns, and crops.

Specifications

ASIN	B00CSAOFUG
Application Method	Sprayer
Best Sellers Rank	#27,429 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #24 in Hydroponic Nutrients & Additives
Brand	GS Plant Foods
Coverage	Medium
Customer Reviews	4.6 4.6 out of 5 stars (2,531)
Global Trade Identification Number	00700621098157
Item Form	Liquid
Item Highlight	For lawns, gardens, trees, houseplants & greenhouses. Mixes with most liquid fertilizers. Up to 64,000 sq ft per jug
Item Weight	8 pounds
Liquid Volume	1 gallons
Manufacturer	GS Plant Foods
Mixing Ratio	1:64
Model Number	HA1gal
Number of Items	1
Part Number	CI-AYNH-NUNR
Specific Uses For Product	Plant Growth, Root Develpoment, Nutrient Uptake
Target Species	plants
UPC	700621098157
Unit Count	128 Fluid Ounces

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