Coarse Pumice maybe familiar for it's dry skin shaving capabilities - but it's also a fantastic aggregate amendment for potting substrates! Pumice is a volcanic rock biproduct which has expanded in extremely high heat, then ground down into beautiful chunky rocks.
This age old material has been used by orchid growers since their inception into the hobby - a best friend amongst Aroid lovers and orchid parents alike!
Perlite; fluffy glass pearls of volcanic rock! This amendment offers insane versatility, with it's extremely porous structure and low water retention in soil mixes. Compared to it's wicking abilities in semi-hydro systems - it's truly an amendment for all.