Perfect for houseplants and container gardens inside and out, Fox Farm??s Happy Frog Potting Soil creates an ideal root-zone environment and promotes phenomenal growth rates. This great organic mix contains composted forest humus, sphagnum peat, perlite, earthworm castings, bat guano, mycorrhizae and humic acids derived from leonardite. Oyster shells and dolomitic lime are also included to stabilize pH. Happy Frog Potting Soil is fine-screened, light in texture and ready to use right from the bag.