However, perlite doesn’t really resemble pearls any more than vermiculite resembles worms, and both amendments can improve the porosity and water retention of soil. While neither is perfect ...
potting soil) is a special soilless formula typically made of peat moss, compost, and perlite. Other ingredients might include aged pine bark (similar to compost), vermiculite, coconut coir ...
Kelly goes on to explain the composition of common household soil, “For the most part potting compost includes a blend of moss/peat, organic matter (broken down vegetation), bark, perlite and ...