Perlite & Vermiculite

Perlite is a form of volcanic glass that expands under heat, it is used as a grow medium for hydroponic systems. Perlite provides water retention and drainage which cultivates root development with optimal pH levels, it is also reusable.

Vermiculite is a mineral similar to Perlite, which expands into pebbles when heated which will help with water retention. Because Vermiculite retains moisture around 200% - 300% by weight, it is commonly complemented with Perlite to balance grow mediums by retaining water while supplying roots with oxygen.