WHAT SORT OF SOIL DO THEY NEED?
Most require none. In nature, orchids can be divided into four types according to growing conditions. Most are classified as epiphytes, or air plants, which grow on trees. The rock growers, or lithophytes, cling to the surfaces of rocks. Saprophytes are those that grow in mulch, often on the forest floor. Finally, there are the terrestrials which anchor themselves in soil or sand. As most orchids are epiphytes, they can be grown in tree bark, crumbled charcoal, pebbles, or on wooden or cork plaques.
