Supreme Perlite Horticultural Grade Perlite - Super Coarse - 4cu ft Poly Bag - OMRI® Listed

Supreme Perlite Super Coarse Horticultural Grade Perlite is comprised of the largest particle sizes designed for boosting porosity or drainage in a big way. Useful as a standalone hydroponic growing medium or in combination with other soilless substrates to enhance their properties. Other applications involve stormwater filtration, orchid growing, terrariums, egg incubation, and high-temp insulation. Perlite is a 100% natural, heat-expanded siliceous volcanic rock. Among its many uses are as a soil amendment, and plant propagating media. Perlite is, sterile, ultra-lightweight, non-toxic, durable, incombustible, asbestos-free, and virtually pH-neutral.