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6% Humic Acid for Organic, Transitional, and Conventional Crop Production

Grower's Secret Liquid Humic

Organic Humic Acid For Crop Production

Derived from Leonardite

Grower's Secret Liquid Humic can be used in organic, transitional, sustainable, and conventional agriculture to promote plant growth, improve crop quality, and aid in micronutrient uptake. This product can be applied to crops by air or ground through drench, drip, or flood irrigation on soil. 

Guaranteed Analysis

Non-Plant Food Ingredients
6% Humic Acid derived from Leonardite

Product sizes and weights

2.5 gallons Net wt. 21 lbs (9.7 kg)

55 gallons (drum) Net wt. 458 lbs (207.7 kg)

275 gallons (tote) Net wt. 2293.5 lbs (1040.3 kg)



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2024 OMRI + CDFA

How is Grower's Secret Liquid Humic applied?

Grower's Secret Liquid Humic is a concentrated form of humic acid and can be applied with fertilizers and micronutrients. It can be used in
irrigation systems and can be added to the water of gravity, sprinkler systems, and drip irrigation systems. Check compatibility before mixing and application.

Will Liquid Humic damage or burn my crops?

The short answer is no, it won't burn your crops when used as recommended. Grower's Secret Liquid Humic should only be used according to plant needs and suggested use rates.  If you have not used this product before, we recommend that you conduct a small jar compatibility test before mixing products to be applied at the same time in the field and also conducting a small infield phytotoxicity test before you apply it in wide-scale use.


What is the shelf life of Liquid Humic?

The shelf life of Liquid Humic in an unopened container is 2 years when stored away from extreme environmental conditions.

What packaging sizes is Liquid Humic sold in?

Liquid Humic is available in 2.5 gal, 55 gal. and 275 gal. containers. Small packaging is available for retail oppotunities.

Can this fertilizer be applied through drip irrigation?

Grower's Secret Liquid Humic can be applied through a drip system at suggested use rates. Check system calibration and function to assure even distribution and proper application rates are being applied.

What is the proper application rate for Liquid Humic?

Naturally the amount of product to apply depends on the crop, it's stage of growth, plant health and yield potential. Always conduct crop and soil analysis to determine plant needs.  Apply 1–3 quarts (1–3 liters) with a foliar fertilizer in 5–10 gallons (19–38 liters) of water per acre when crop is from 3 to 4 weeks old. Repeat as needed. Ground Rig: Apply 1–3 quarts (1–3 liters) with a foliar fertilizer in 15 to 20 gallons (57–76 liters) of water per acre. Grower's Secret Liquid Humic can be used in transplant water at a rate of 1–2 gallons (4–8 liters) per acre. It can also be used in direct seed application, such as rice, at the rate of 1–2 gallons (4–8 liters) per 100 gallons (378 liters) of water. Always mix with materials that have a pH of at least 6.

Fertilizing With Humic Acids



Humic Acid's high carbon content provides food for microbes, therefore improving the soil's ecology with a primary function of chelating micronutrients that are tied up in the soil. Unlock your crop's full potential with Grower's Secret Liquid Humic.

Grower's Secret Liquid Humic can help your crops uptake the micronutrients locked up in the soil.

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  • Low Salt

  • Liquid

  • Readily Available