Going Greens Perlite Potting Soil Mix for Gardening Hydroponics Horticulture Manure Fertilizer(0.9 kg, Powder)
Quick Overview
Product Price Comparison
Perlite is actually a generic term that we use for naturally occurring siliceous amorphic volcanic rock. But unlike other volcanic glasses, if you heat them above a point (8000-9000 C), they expand up to 20 times of its original volume.
