What’s this white stuff in my soil? July 17, 2015 Growing Tips, Uncategorized Those small white spheres in your soil may seem odd to someone that’s never heard of, or possibly heard of but never used Perlite. Perlite is a non-organic additive used to aerate the soil. Perlite is comprised of volcanic glass that has been heated to an extreme degree where at which it pops and expands to 13 times its former size. This lightweight material upon inspection has been found to be covered in tiny cells that absorb moisture on the exterior of the particle allowing it to easily facilitate moisture to plant roots. Perlite is best utilized in plants that require well-draining soil and don’t require consistently moist media. Its porous structure allows it to pick up the water and retain it until the plant roots require it making in an incredibly neat addition to your potting soil. Perlite is good for more than just soil too; it can also be used in soilless mediums such as coco to help keep it loose and well-draining. Perlite is also well-utilized in soaps, pool filters, polishes and a handful of other common items. We here at Growing Society wish you the best of luck in this summer season. And remember to keep sending us photos or article suggestions to our email through our contact page or facebook. Leave a Reply Cancel ReplyYou must be logged in to post a comment.