A natural and nonPractice
> Light, grainy granular, which is made of natural vulcanic rock by building up a cell structure with the influence of heat (according to DIN EN 13169)
> for cropping vegetables, cut flowers an special crop
> completely environmentally friendly
> no dust-accumulation
> pH-neutral and inert
> RHP-certified quality producttoxic neutral volcanic rock.
Under the heated process to produce a lightweight, microporous medium.
True Density: 2,0 - 2,2 g/cm3
Bulk Density: 90 kg/m3 ± 20%
Application: Mix into compost or soil to improve drainage and aeration, stimulates root development and vigorous growth and retains moisture.