Description This all-purpose potting soil is made with sphagnum peat moss, compost, perlite, lobster and crab shell meal and kelp meal. It is designed for potting indoor and outdoor container plants. Water and fertilize less with this nutrient rich, compost based potting soil. OMRI Listed. Product Features: For houseplants, flowers, vegetables, herbs, & all container gardens Natural slow release nitrogen Helps retain moisture & improve aeration Approved for Organic Growers