50 million years ago as the glaciers retreated from the Perth hills, meltwater deposited this mineral rich rock flour. It is the secret behind the most fertile, abundant soils on Earth. It fixes the most irritating problem in the garden, hydrophobic soil, transforming water repellent sand into loamy topsoil.

High in plant available silica

Natural soil wetter superior to detergent based soil wetters 

contains 70% kaolin clay, 30% river silt