Perlite occurs naturally, it is amorphous volcanic glass formed by the hydration of obsidian. Perlite is light weight and has many uses.
Perlite is used by construction, plasters and mortars, insulation and in the horticulture. In horticulture it's used as a soil additive or as a media along for hydroponics or for seedlings and starting cuttings.
Perlite is a sterile, light material ideal for providing aeration for seedlings and starting cuttings. When added to soil, it enables more aeration in the soil or mix for better growing.
