Perlite vs Vermiculite: What''s the Difference? | Epic ...
Feb 07, 2019· There are major differences between vermiculite and perlite, making it important to choose the right one, lest your garden be ruined by a bad growing media choice. We''ve already covered the biggest difference: Vermiculite will mix with soil and help to retain water. Perlite, on the other hand, will add drainage to the soil that it''s mixed with.