How to use



40% mono-silicic acid

(19% Si w/w)

For strength and yield increases, faster growth and stress resistance:
  • Apply weekly at 0.3 ml per 10L of water or nutrient solution.

  • Hand water or apply via irrigation system.

  • Use from seed germination or cutting propagation to a few weeks before harvest.


To build defence against pests, mould and other fungal pathogens:
  • Apply fortnightly as a foliar spray at 0.5ml per litre of water.

  • With fruits and vegetables use from germination / propagation to just before harvest.

  • On species with dense or compact flowers, stop foliar application at early flowering, especially indoors. or in cold or damp weather.

  • Don't spray under full lights or in strong sun.

  • GG Mono will kill mites on contact - if you are using beneficial predators, apply via roots only.

  • Bee kind: if polinators are around, apply via roots only to avoid any possible harm.


Organic usage:

Grow Genius mono-silicic acid is not an organic product, but it is compatible with mycorrhizae and bacteria friendly growing techniques at the application rates we recommend. Silicon is not harmful to most beneficial microorganisms and low levels of ethanols are digestible by many soil borne bacteria and fungi. But above all, because our mono-silicic is so concentrated, net addition of product to the soil is tiny: just 0.03ml/L in solution. This is the benefit of treating trace elements as they should be: like vitamins, not food. Mono-silicic (also known as Orthosilicic / monosilicic acid) has powerful effects at very small dosages meaning less chemical inputs and better outcomes for your plants.


  • Close container securely immediately after use: ethanol evaporates quickly!

  • Apply to plants within a day of mixing for maximum effectiveness: monosilicic acid separates from the ethanol carriers on contact with water - it becomes active but also begins to polymerise into less active forms over the following week.

  • Do not allow any water or dirt into the container: GG mono will re-polymerise on contact. Use a blunt needle syringe, pipette or other appropriate measuring equipment to measure out the required dosage (included with the 10ml size).

  • Contains ethanols and silicon: safe for plants when used as directed, but not for direct contact with humans: do not ingest, breathe or allow contact with eyes/skin.

  • Always avoid breathing mist from spraying this or any garden product: always wear an appropriately rated mask, eye and hand protection when working with garden chemicals.

See product packaging and the MSDS for detailed handling and safety information.