Perlite
Perlite is an extremely lightweight , white , volcanic stone that is produced in grades ranging from less than 0.1mm all the way up to more than 3mm in size . It is a relatively inexpensive grow media that is pH neutral and is reusable as it does not biodegrade .
➤ PROS : Perlite is very porous which lends to good aeration , high oxygen retention , and waterholding ability . It can hold up to four times its weight in water . It is naturally sterile , so it is often used for seed starting , and young seedlings are less likely to die from damping off disease or root rot when started in perlite . It can be sterilized between crops and reused indefinitely .
“ No matter the type , growing media needs to provide the home , storage , stability , and the basics for the health and benefits to the plants .”
Maximum Yield 31