Premium Orchid Growing Mix. Recommended for all types of terrestrial and epiphytic orchids. Ideal for Cymbidiums, Paphiopedilums, Zygopetalums, Brassia, Coclioda Miltoniopsis, Odontoglossum, and Oncidium. Change potting mix every 12-18 months right after flowering. Always use good drainage pots. Contains: Double screened Fir Bark and Perlite.