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Earthcraft BioSystems

Earthcraft Siliceous (Liquid Silica)

Earthcraft Siliceous (Liquid Silica)

Regular price $32.50 USD
Regular price Sale price $32.50 USD
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Shipping calculated at checkout.

Siliceous is an ionized active silicon solution. This natural supplement contains bioavailable Monosilicic Acid, the only form of silicon that can be readily absorbed by plants. Use Siliceous in your garden for stronger roots, branches and stalks as silicon strengthens cell walls, improves nutrient uptake, builds resilience, and improves yields!

Uses and Benefits:

  • Monosilicic acid is the only silicon-containing molecule that can be taken up by plants
  • Improves uptake of phosphates and other minerals
  • Improves photosynthesis and increases growth
  • Strengthens cell walls and forms a protective epidermal layer
  • Provides protection from insects, disease and water stress
  • Reduces the reliance on other pesticides and fungicides
  • Improves soil texture and water holding capacity
  • Immobilizes heavy metals in the soil

Compatibility with Beneficial Insects:

The carefully selected blend of water-soluble, organic ingredients that make up the Earthcraft BioSystems line make it harmless against your beneficial insects, yet effective in their intended uses.

Product Versatility:

The organic, bio-available nutrients are an excellent addition to any no-till garden to fill the gaps when your soil biology may not be able to keep up with your plants demands. The exceptional cost value of these nutrients perfectly aligns with the economical approach of regenerative agriculture.

The liquid formula is compatible in any irrigation or fertigation systems without clogs and it can be used in any soil or soil-less growing mediums such as coco coir, peat and even rockwool.

Derived From:

The available silicon, known as Monosilic Acid or Orthosilic Acid Si(OH4), is derived from Silica Mineral

Contains Beneficial Substance:

Available Silicon (Si) - 24%

Commercial Pricing:

We do commercial pricing! If you're interested in discussing further and getting some commercial pricing, please don't hesitate to reach out to me at

Application Rate
.25 - 1ml per gallon of water for root drench or foliar.

Are you looking for another option for monosilic acid? We carry Horsetail Equisetum for our natural farmers, check it out here!


We recommend storing all dry amendments and nutrients in a dry, cool location away from direct sun.


Shipping on all our non-living goods is free to the lower 48 United States.

Returns and Replacement

All dry amendments and nutrients are returnable within 14 business days, as long as the container is unopened and packaging is in the same condition as sent.

If your package is damaged during shipment, please document and send us pictures and notice to and we will make it right!

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Earthcraft Biosystems and MI Beneficials products go together very well

Friends with Benefits

The Earthcraft Biosystems nutrient line is not only the perfect companion to MI Beneficials soil amendments, but they are harmless to your living soil organisms such as the ones we offer in our Biodiversity Pack.

  • Fast and Free Shipping

    There are free shipping options on orders of amendments, nutrients, natural inputs and other non-living goods over $35 to the lower 48!

  • Dedicated to Sustainability

    All of Earthcraft Biosystems' packaging for dry goods is completely compostable including stickers.