Boost Your Plant Growth with Humic Acid 500g

Enhance the nutrient uptake, yield, and overall performance of your plants with Humic Acid, a powerful soil amendment that promotes a healthy microbial environment for stronger and more robust plants.

Features and Benefits

  • Increased nutrient uptake: Chelates and transports essential nutrients such as Mg2+, Ca2+, Fe2+ and Fe3+, making them more accessible to your plants.
  • Improves soil structure: Provides a scaffold for future humic generation and a substrate for fungal-dominant microbes to promote a balanced and healthy soil biome.
  • Enhances other amendments: Acts as a synergistic amendment to increase the benefits of other soil amendments like Kelp, Bokashi, Neem, and Oyster Shell Flour.
  • Integrated Pest Management (IPM): Can be incorporated into an IPM regimen to tackle unwanted insects.
  • Soil pH reduction: Assists in lowering the pH of alkaline soils for improved plant health.

How to Use

  1. Measure the proper dosage, which is recommended at 20-50g per 20L of soil.
  2. Thoroughly mix the Humic Acid into your soil, ensuring even distribution.
  3. Water your plants as usual and monitor growth, adjusting the dosage as needed for optimal results.
  4. Repeat this process periodically to maintain a healthy soil structure and promote plant growth.

Best for

Ideal for gardeners, horticulturists, and anyone looking to improve plant yield, flavour, and overall performance through better nutrient management and soil conditions. Perfect for use in a variety of horticulture applications, including organic gardening, hydroponics, and general indoor or outdoor plant cultivation.

Notes from Aqua Gardening

  • This listing is for a 500g pack of Humic Acid.
  • Store in a cool, dry place away from direct sunlight.
  • Keep out of reach of children and pets.


What is the primary function of Humic Acid in my garden?

Humic Acid serves as a powerful chelating agent, helping plants absorb and utilise essential nutrients like Mg2+, Ca2+, Fe2+, and Fe3+ more efficiently. This improves plant growth, yield, and flavour, while also promoting healthy microbial life in the soil.

How does adding Humic Acid benefit my soil?

By providing a substrate for beneficial fungal microbes and supporting the breakdown of amendments in the soil, Humic Acid contributes to the long-term improvement of soil quality. It promotes a healthier microbial biome, enabling your plants to thrive in a more supportive environment.

Can I use Humic Acid in conjunction with other amendments?

Yes, Humic Acid works well as a synergistic amendment alongside other soil enhancers such as Kelp, Bokashi, Neem, and Oyster Shell Flour. It can enhance nutrient uptake and maximise the benefits of these other amendments.

Is Humic Acid useful in Integrated Pest Management (IPM) regimens?

Yes, integrating Humic Acid into your IPM regimen can help to combat unwanted insects and pests in your garden by creating an unfavorable environment for them.

How do I use Humic Acid to lower the pH of alkaline soil?

To reduce the pH of alkaline soil, you can add Humic Acid directly to your soil. It will help neutralize excess alkalinity and gradually bring your soil pH back into balance.

What is the recommended dosage for using Humic Acid?

The suggested dosage for using Humic Acid is 20-50g per 20 L of soil. This 500g package should provide sufficient coverage for your gardening needs.

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(SKU: 129838)

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