Mother Earth’s Perlite is a 100% natural siliceous rock that expands up to 20 times its original volume when heated to 1600°F. This heating process—similar to how popcorn pops—produces a sterile growing medium with a neutral pH of 7.0.

Highly versatile, this perlite is suitable for various growing methods, from hydroponic systems to being added to custom soil mixes for improved aeration and drainage.