<p class="MsoNormal">Perlite is a naturally occurring, volcanic rock. When furnaced at high temperatures, perlite "pops" and expands 7 to 15 times its original volume.&nbsp;The resulting lightweight particles are made up of microscopic spheres with a porous, broken surface that promotes plant growth.&nbsp;This allows aeration and drainage of the root system and provides holding capacity for water and nutrients.&nbsp;Improves soil structure, eliminates soil crusting and compacting, increases water holding capacity and fertilizer retention, improves drainage and aeration, provides uniform growing media, produces denser root structure, propagation of seedlings and cuttings, soil conditioning, hydroponics, roof deck gardens and eco-roofs, nursery stock &amp; hanging baskets, turf enhancement, newly planted trees and plants. As a family owned business based out of California and located in the Bay Area, we take tremendous pride in doing everything possible to satisfy our customers with hands on direct to customer relations and service.&nbsp;The trust of over 32 years of experience to service any and all customers with the best Perlite and service in the market today. Our perlite products are second to none due to the use of clean East Bay Mudd water in our products for cooling and dust control.&nbsp;Non- traceable free silica (unlike many other Perlite products in the market). In other words, we get it there on time. The expertise to invent and build custom grades based on the demands of our customers.&nbsp;We are very confident that you will love the quality of this perlite. Try it and if not satisfied return within 30 days for a full refund.<o:p></o:p></p>