Biologic Systems Silver Blend Potting Soil is an organic, fully amended potting soil specially formulated for vigorous plant growth in any indoor, outdoor or greenhouse system. This peat based blend contains coco coir, worm castings, and a diverse array of organic amendments, fertilizers and minerals.  

Ingredients: Sphagnum peat moss, aged fir bark, coco coir, screened pumice, coarse perlite, worm castings, kelp meal, crustacean meal, archipelago bat guano, basalt rock dust, alfalfa meal, feather meal, bone meal, blood meal, K-Mag, poultry litter, dolomite lime, gypsum, micronutrients, trace elements, wetting agent.