The Ready-Gro plug is made of naturally composted materials, it contains natural beneficial fungi and can be inoculated with other biological controls. It is an optimally aerated medium that naturally maintains the proper air/water ratio to promote healthy growth which will help prevent common water molds and diseases. Retains just the right amount of water Virtually eliminates loss in transplanting Provides a number of biological benefits Plug design and aeration of medium promote root density and directions Biodegradable