Happy Frog® Potting Soil contains earthworm castings, bat guano, and aged forest products. It is designed for container planting. Whether you’re growing a ficus in the dining room, a geranium on the patio, or a lemon tree on the deck, use FoxFarm Potting Soil full strength in your containers. Then sit back and enjoy the results. Embrace the Vitality of Happy Frog!