Vermiculite vs Perlite vs Sand is container mix ...
Nov 18, 2016 · Vermiculite vs Perlite vs Sand is container mix ??? Thu Nov 17, 2016 5:45 pm. Am a little stumped on this one. Vermiculite (heated up mica) retains water and some nutrient and promotes aeration and soil drainage/lightness. Perlite (different version of heated up mica) retains water but not nutrient and promotes aeration and soil drainage ...