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," ...

Evelyn writes: What is the difference between perlite and vermiculite? I was told I could use either one of these products when mixing my own potting soil. Perlite (also known as horticultural perlite ...

FAYETTEVILLE, AR—In the greenhouse business, organic and inorganic growing substrates are chosen for the physical and chemical properties necessary to support specific crops and growing conditions.

I’m sure you have purchased potting soil that stated something like “contains perlite.” What exactly is that, and why should our soil contain any? Living in a region with a usually wonderful climate ...