Mother Earth CocoGrow Media created by experts Mother Earth Coco Mother Earth Coco is an RHP Certified* natural plant growth media that is a great alternative to potting soil and other traditional growing medias. Mother Earth Coco substrate contains the highest quality mix of coco pith and coco fiber. RHP certified for quality, Mother Earth Coco is pre buffered and pH adjusted to neutral at 6. 36. 8. Mother Earth Coco will promote strong root growth, populate