E.B. Stone Organics Edna's excellent potting soil is a special blend of the finest 100% natural and organic ingredients formulated to make a great mix for both indoor and outdoor container gardens. E.B. Stone Organics Edna's excellent potting soil is ready to use right out of the bag. This potting soil has excellent moisture retention and air-filled pore space encouraging root growth. A natural wetting agent, Yucca schidigera saponin has been added, allowing the mix to rehydrate during each watering.