Coconut husks are the rough exterior shells of the coconut. While the husks are not used for food, like the meat and liquid found within the exterior shell, the husk can be used in several ways, including creating enriched potting soil and as chips that can be used to provide ground cover for flower beds. Interestingly, young coconuts, white coconuts and brown coconuts all come from the same coconut palm, they just differ by stage of maturity! All coconuts contain a husk, which is kind of like the rind of the fruit and under which you can find the delicious meat. The fibers from coconut husks, which are known as coir, are versatile and can be used in a variety of products: coconut husk chips are a used as a planting medium that help the plant retain moisture and resist to fungal growth; coir is used to make doormats and brushes, or to make twine, particle board. Walls of sclerenchyma are lignified, which make them thick. This tissue makes the plant hard and stiff. Coconut husk is very hard and is made of such thickened, lignified cells. Such cells make it very hard to pull out the coconut husk. Coconut husk fibers are used to make ropes, mats, runners, brushes, brooms and furniture upholstery. These fibers aren't edible, though if you're looking for a nutritional boost, eat the meat on the other side of the coconut shell. It is certain that dual benefits are obtained when coconut husk is used for daily cleaning of teeth, which are, the mechanical cleansing property of the fibrous component and the chemical antimicrobial properties of the active constituents.