Perlite -Amorphous Volcanic Glass-Plant Care

Perliteis an amorphous volcanic glass that has a relatively high water content, typically formed by the hydration of obsidian. It occurs naturally and has the unusual property of greatly expanding when heated sufficiently.Perlite can be used as a soil amendmentor alone as a medium forhydroponicsor for startingcuttings. When used as an amendment, it has high permeability and low water retention and helps preventsoil compaction.While it does also help retain some water,perliteis primarily used to aerate compost. It excellent for creating a free-draining potting compost forplantsthat needProducts good drainage, such as cacti and succulents.