Coco coir USA , often referred to simply as coir, is a natural fiber extracted from the outer husk of coconuts. Once considered a byproduct of the coconut industry, this humble material has found new life as an essential growing medium in modern horticulture. With the rise of eco-conscious farming practices and sustainable agriculture, coco coir has rapidly become a preferred alternative to traditional soil amendments. Lightweight, porous, and rich in lignin, it offers excellent water retention and aeration—two critical properties for healthy root development. In the U.S., Coco coir USA is no longer a niche product; it has gained widespread recognition among commercial growers, hydroponic enthusiasts, and home gardeners alike.