Mother Earth Coco + Perlite Mix (1.8 cu. ft.)**SHIPPING RATES BASED ON DIMENSIONAL AVERAGES, SUBJECT TO CHANGE (YOU WILL BE REFUNDED THE DIFFERENCE)** Mother Earth Coco + Perlite Mix is an RHP Certified natural plant growth media that is a great alternative to potting soil and other traditional growing medias. Coconut coir is made from the fiber of coconut husks and is an alternative to peat based medias. Mother Earth Coco + Perlite incorporates 70% of the finest coco pith and fiber blend as