High porosity inert
Selected grain size 8-14 mm
It is a natural inert of volcanic origin which can be used as soil improver mixed with substrates to increase drainage and aeration functions of the roots drainage and aeration functions, especially for plants which particularly suffer water stagnation. It can also be used as a decorative mulch to replace other inert materials such as lapillus to give a light and elegant colour, making it ideal for creating hanging gardens and flower beds. It is an inert material with a selected grain size of 8-14 mm, ideal for the development of all plants, capable of keeping the soil well-drained and airy.