High Quality Perlite for Gardening Potting Soil, Indoor & Outdoor, Hydroponics and Horticulture Potting Mix

Perlite is the name for a naturally occurring siliceous rock. When heated, it has the capacity to expand from four to twenty times its original volume. This is due to the rapid expansion of water within perlite, which creates the extremely light perlite that we use for gardening.

The main function of perlite for the gardener is to aid water retention and aeration as well as improve compost mixtures.

Perlite is mined and expanded all over the world. The United States is estimated to be the largest consumer and producer of both crude and expanded perlite. However, other countries producing perlite include China, Greece, Japan, Mexico, Hungary, Armenia, Italy and Japan.

Benefits
Prevents compaction
Improves aeration and drainage better than vermiculite
Stimulates root initiation and vigorous growth
Holds moisture but does not become soggy
Almost neutral pH
Does not decompose
Free from disease, weeds and insects
Insulates and minimises temperature fluctuations
Inorganic, inert and sterile
No known toxicity or fire hazard