Perlite is a volcanic glass that is heated to 1, 600 degrees F. (871 C.) because of which it expands to 13 times its former size, resulting in an incredibly lightweight material. Perlite is used in soil mixes (including soilless mediums) to improve...
Perlite is a soil amendment made from volcanic glass that can be used as a soil amendment or standalone growing medium. It increases water retention and aeration, and is suitable for a wide range of plants. It can also be used in hydroponics and...