Perlite is a volcanic glass that is often used in gardening due to its lightweight, porous nature that aids in healthy plant development. "It is made from a type of volcanic glass called obsidian," ...

Perlite is a volcanic rock that increases circulation and moisture retention in soil. There are different grades of coarseness perlite is available in, and they each have different uses and benefits.

Whether you’ve been gardening for years or are looking to become that bit more green-fingered, you might have wondered ...