Plant Power Plant power is bursting with life! This premium grade potting soil made from a blend of compost, peat moss, pumice, fir fines, CocoCoir and worm castings. This Soil-less blend is course in texture, rich in organic matter, and packed with nutrients and beneficial bacteria, with an optimal pH for amending. It makes and exceptional planting soil for all types of plant material and when used as a soil amendment will transform even the poorest soils