Coast of Maine Bar Harbor BlendIn Store Location: @A Coast of Maine Organic Products Bar Harbor Blend Organic Potting Soil is a lightweight soil mixture made with salmon, blueberry, lobster and other composts, as well as calcium and chitin rich lobster shells, sphagnum peat, perlite and kelp meal. It is dark brown in color and provides the perfect balance between water retention and drainage needed for healthy plants. It is OMRI listed for use in organic gardens.