Orchid Mixes is blended with all-natural ingredients: Charcoal, Sponge Rock, Pine Bark and Coconut Chips. Orchid Roots love to climb and expand; this textured mix allows them to stretch to their full potential. Mix does not compact or suffocate orchid roots. Call us for more details @ (561) 499-2810. Visit Our website: www.greenbarnorchid.com