What is horticultural perlite?
Horticultural perlite is also known as expansive perlite, large-grained perlite and coarse perlite. It is a kind of white granular non-metallic mineral material with honeycomb structure, which is made of perlite ore by preheating, instantaneous high temperature roasting and expanding 10-30 times. Its interior is porous honeycomb structure, light weight, clean, aseptic, non-toxic, tasteless, non-corrosive, non-flammable, acid and alkali resistance, fertilizer, water, heat preservation, good air permeability. Suitable for soilless cultivation and all kinds of high-grade flowers and trees and pollution-free economic plants, is the best plant material for ecological horticultural cultivation, and the necessary material for large-scale flower seedling farm.