Viagrow coco coir is a completely natural, renewable, plant growing media made from coconut husk and coconut fiber. Triple washed and sterilized to ensure low EC and salt content to meet or exceed our rigorous standards of quality. Viagrow coco coir is excellent as a stand-alone plant growing media or can be used in conjunction with perlite, vermiculite, peat-based media, compost, earth worm castings or your favorite soil. Viagrow coconut coir is great for both indoor, outdoor and greenhouse growing environments is pH stable and odor free. Comparison to non-Buffered: VCCF50 & VCCB5.