RePotme Cattleya Multi Purpose Classic Orchid Mix is an excellent choice for a wide variety of orchids such as Cattleya, Laelia, Potinara, Coelogyne, Stanhopea, Phalaenopsis and any thick rooted orchid. This blend is designed to promote healthy strong roots with great drainage and a chunky open structure. Also available: Chunky Cattleya Classic Orchid Mix Note: In general, one quart of potting mix fills a six inch wide pot, two four inch pots, or half of an eight inch pot with no plant in it.