Espoma Organic Moisture Mix 1 cu. ft. Catalog Lawn & Garden Soil Potting Espoma Organic Moisture Mix 1 cu. ft. Manufacturer : Espoma Natural Gardening Solutions Description An all natural moisture control potting soil with coir, earthworm castings, and myco-tone endo and ecto mycorrhizae, to grow big beautiful plants. Rates Please contact us for current pricing and availability.