The exceptional physical properties of this perlite make it top in the perlite world for adding porosity to soil and soilless mixes.

Mother Earth® Perlite is 100% naturally occurring siliceous rock that when heated to 1600° F expands up to 20 times its original volume. This kilning process is very similar to popping popcorn and produces a growing media that is sterile and has a neutral pH of 7.0. This perlite has numerous hydroponic applications as well.

The #4 is the largest perlite on the market and averages a whopping size of around 1 inch. The #3 measures around 1/2 inch. Coarse is about 1/8 to 1/4 inch.

Please refer to the information tabs below for images of each grade.

  • Available sizes

  • 4 cf
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HGC713308: Coarse Grade

Coarse grade is about 1/8 to 1/4 inch.

HGC PerliteCoarseGrade stones

HGC713310: Size 3 – Large & Coarse

The #3 size measures around 1/2 inch.

HGC PerliteSize stones

HGC713315: Size 4 – X-Large & Coarse

The #4 size is the largest perlite on the market and averages a whopping size of around 1 inch.

HGC PerliteSize stones