ORCHID"NUTS" Premium Orchid Potting Mix - Fine, 2 Pounds One 2 pound bag of orchid potting media. Proprietary mix of pine bark, clay aggregate and volcanic ash rock, among other top grade media. Clean and ready to use straight from the bag. Fine size media that ranges from 1/8" to 3/8" is perfect for orchid seedlings and paphiopedilums. 2 pounds of mix will approximately fill three 6" Round Plastic Orchid Pot, or three 5" Round Plastic Orchid Pot, or six 4" Round/Square Plastic Orchid Pot, or fifteen 3" Round Plastic Orchid Pot, or 10 3-1/4" Square Plastic Orchid Pot, or twenty 2-1/4" Square Plastic Orchid Pot