216 bags of filter media


Hi there,

In this episode we show you some recent research into bioretention filter media and its relationship to plant health. Follow the link above for full research details and the raw data!

Highlights include:

  • organic matter and its relationship to plant health

  • a large change in filter media pH over two years

Thanks to Nem Krco, Karan Braich and Calen Murray for their work on this research.