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SilviBio Water Steward


SilviBio has developed a soil conditioner for field application that provides protection against crop failure due to drought conditions or low soil moisture.

In water deficit conditions, the soil additive improves germination by 40% and can save up to 50 million litres of water per 1 million seedlings.

Its key features include:

  • A biobased, biodegradable, microplastic-free soil additive.

  • Improving soil water holding capacity by minimising excessive water drainage and evaporation, meaning plants need less watering.

  • Enables extension of the growing season by improving seedling establishment.

  • Reduces plant stress caused by drought and transplant shock

  • Reduces nutrient leaching. This can enhance the fertiliser use efficiency by extending the nutrient release period.

  • There is no need to change growing systems: the conditioner can be supplied in a powder form and used with existing nursery machinery.​​

Image by Henry Be
  • How do SilviBio soil conditioners affect soil moisture?
    Our soil conditioners absorb water from irrigation and/or rainwater. Water that would be lost is retained in the soil and released to the plants when it is needed. Water Steward and PeatNoMore can be recharged multiple times providing support to the plants throughout their growth.
  • Can you show us results/data?
    Yes, we have been developing and testing the soil conditioner over the last two years. Please contact us using the form below for more information.
  • Can we set up a trial?
    Yes, please contact us using the form below and we'd be happy to discuss this with you.
  • Does it contain microplastics?
    No, our conditioners are made from bio-based, biodegradable materials and do not contain microplastics.
  • In what ways is it different to currently available soil conditioners?
    Our soil conditioners do not contain the petroleum-based polymers (e.g. polyacrylates or polyacrylamides) used in conventional hydrogel products. Our soil conditioners are made from sustainable, bio-based materials. In addition, SilviBio PeatNoMore has been specifically designed for to improve the properties of peat-free growing media.
  • Do you offer technical support?
    Yes, we have a strong team of scientists who have been involved in the development of our products. They are happy to provide assistance and answer any questions you may have.


We’re happy to hear from you. Contact us today to find out more about our soil conditioners.

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