Perlite is also used with hydroponic systems world wide, with superior crop production.
Good for potting mixes and as a stand-alone soilless medium.
Provides perfect aeration and holds the right amount of moisture, can hold three to four times its weight in water.
When used in potting soil mixtures, perlite lightens the mixture and improves aeration and drainage.
Perlite for Gardening, Hydroponics.