Can Perlite be Used in Hydroponic Systems?

It’s possible to grow most plants in perlite alone, although usually the finer grades and medium grades will work better and require less water. Seeds can be started in any grade of perlite, but with smaller seeds, finer grades of perlite would be recommended. Our Hydroponic Perlite is an excellent soil substrate that is 100% sterile growing medium and OMRI listed.