Made from the finest ingredients, Natural and Organic Potting Mix is an all-purpose mix recommended for containers and raised beds and ensures good aeration. Ingredients are Canadian Sphagnum Peat Moss, Compost, Composted or Aged Bark, Earthworm Castings, Horticultural Grade Perlite, Pumice, or Cinders, Resilience. Resilience is a trade name of Sungro for Silicon, is a beneficial plant substance. Plants grown with Black Gold Resilience silicon, already in the mix, may result in earlier flowering, better root growth, and improved resistance to wilting. Results will vary by plant type.