Mosser Lee Decorative Forest Bark Soil Cover is harvested from fir trees after the logging process. Cleaned and uniformly sized, Forest Bark retains its distinctive brown color for many years. The individual pieces are chosen knowing that they will be used to enhance the beauty of potted plants by adding the “final touch”. Many uses include: Place on top of any potted soil to reduce moisture evaporation in interior houseplants. Fairy gardens Hobby and school projects Add to terrariums to accent the growing medium Accent color and shapes in custom designs and crafts. Orchid growing medium Used by interior-scape decorators.