We have developed the substrate especially for these precious tropical species; it provides ideal conditions for these plants to produce lush flowers. The product ensures your plants receive a balanced supply of water and air, have a good supply of nutrients when they need them, and are kept at a constant pH. Precious humic substances promote optimal root growth, and they provide the best drainage properties to protect against waterlogging. This ensures orchids are happy and stay well looked after. The product is available in two sizes: 3 liters and 6 liters.