Use this 9 lb. 14 oz. block of organic coconut coir planting mix to promote root growth for flowers, vegetables, herbs, orchids and more. It works as both an indoor and outdoor planting mix and is ideal for hydroponics systems. Although each compressed block of mix is equivalent to more than 2.5 cubic feet of soil when water is added, it is lightweight and easy to carry and store. OMRI Certified.