Popcorn Perlite Anyone?

You know that white substance in your potting soil? Here's a hint: It's not expanded polystyrene (styrofoam).  It's expanded perlite.  So, what's perlite?Perlite is an amorphous volcanic glass (SiO2) that has relatively high water content, typically…

by Kris Denz on January 19, 2017

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Bud Keller   President
bkeller@kellermechanical.com