Perlite is a naturally occurring volcanic rock and is 100% natural.
When furnaced at high temperatures, Perlite "pops" and expands up to 15 times its original volume. The resulting, lightweight particles are made up of microscopic spheres with a porous, broken surface that promotes plant growth. This allows aeration and drainage of the root system and provides holding capacity for water and nutrients.
4 cubic foot bag. Approx. 26lbs.
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