Perlite is a kind of natural non-matallic mineral , it has function of draining away moisture, breathability, preventing root rot.because perlite contains lots of mineral subatance ,it could improve plants’growth. Perlite could absorb moisture which is 2-3times of its own weight . it’s water permeability and breathability is rally good . perlite keeps water and mineral substances
well , which do goods to plants’ growth. Perlite is widely used in horticulture to improve soil .