All Treat Farms Premium Orchid Potting Soil is a ready to use mix straight from the bag with no additives needed. This premium orchid potting soil is ideal for Phalaenopsis Orchids and other epiphytes. It is premium blend of composted pine mulch, perlite and sphagnum peat moss. It is formulated with optimal aeration porosity and encourages strong root development. It contains a slow release fertilizer that will help feed plants for up to 2 months. All Treat Premium Orchid Potting Soil can be used for plants in outdoor and indoor containers or pots.