For peat's sake! Peat moss has been added to potting mixes for a long time, and for good reasons: it retains a ton of moisture, is sterile (no weed seeds or pathogens), and provides a nice, fluffy texture. So what is this magical stuff? Peat is made of decomposed sphagnum moss which grows in bogs that cover massive areas (thousands of square miles!) of the Northern hemisphere — these bogs provide habitat for many rare plant species 🌿 and are important carbon sinks in the face of climate change

Using Peat Moss As A Hydroponic Grow Medium