Packaging: 20 grams (in zip lock bag 8) it is a Sandstone of volcanic origin that contains water which is expanded made by heat treatment of 1200 °C. It has a very high capacity to retain water, 4 to 5 times its own weight, natural product that is pH neutral, from 7 to 7.2. The perlite is used to culture in substrate, pure or mixed, mixing compost or vermiculite to improve aeration and drainage. Speeds up germination of seeds. Simply spray of water before being handled in the dust. The perlite is in the form of white, very light but very brittle grains, colour white. Shape of the substrate, very light flakes Perlite originate from a quick heating in sandstone to 1000 °C. It is made of silica, alumina, Iron Oxide, Titanium Oxide, lime, Magnesium Oxide, Sodium, Potassium, carbon. Physical Characteristics of the perlite good, high porosity, low density, easily friable, often associated with other substrates, coconut fibres, tourbes, where it provides ventilation and support. Also used to repair the: using the perlite in thinning areas of your lawns and lawn rake encourages root development during the planting of trees and shrubs. Washes out easily in the garden in the middle ground.
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