• perlite
  • perlite white background
  • spilled perlite with dime

Perlite Soil Amendment

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Pure horticultural grade perlite. Grade 1, Fine Coarseness (granule size about one-eighth of an inch.) Perlite is made from all-natural volcanic rock that is heated under pressure until it explodes like popcorn, leaving a white puff that is so light that it will actually float. Perlite is added to soil and soil-less potting mixes (like coconut coir) to provide additional aeration, drainage, and insulation for roots against extreme cold. Perlite helps keep soil from compacting.

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