100% Organic Material All Natural Orchid Bark, USA Sourced and Produced Orchid Bark Potting Mix, Orchid Potting Bark Bulk (2qt) This all organic material orchid bark is USA sourced pine bark that is used by several extremely large commercial orchid operations to pot plants going to stores. We choose the USA sourced loblolly and yellow pine as it is a great combination of longevity and cost-effectiveness. Sold here in consumer-sized bags perfect for repotting your orchids or plating new. Great for use in making your own orchid mix or just planting directly into the bark. Works well with: Cattleyas, Phalaenopsis, Dendrobiums, Paphiopedilums, Oncidiums, and All Epiphytic Orchids