Dendrobium orchids are epiphytic plants, meaning they naturally grow on trees or rocks in their native habitats, such as tropical and subtropical forests. They do not require soil but instead rely on their roots to anchor onto surfaces like bark or wood while absorbing moisture and nutrients from the air and rain. This adaptation makes mounting them on wood or bark an ideal cultivation method, as it mimics their natural growing conditions.
Choose a sturdy, rot-resistant wood or bark, such as cedar, cork, or tree fern slabs. The material should be rough-textured to help the orchid's roots grip securely. Avoid treated or chemically processed wood, as it may harm the plant. The size of the mount should accommodate the orchid's growth, allowing space for future root and stem expansion.
Before mounting, inspect the orchid's roots and remove any dead or rotting material. Soak the roots in water for 10–15 minutes to make them more pliable. If the orchid has long, unruly roots, trim them slightly to encourage new growth. Ensure the plant is healthy and free of pests or diseases before proceeding.
Place the orchid on the mount, positioning it so the roots make contact with the surface. Use soft materials like sphagnum moss or coconut fiber to cushion the roots and retain moisture. Secure the orchid with fishing line, nylon thread, or plastic-coated wire, wrapping it loosely around the roots and mount. Avoid overtightening, as this can damage the roots. Over time, the roots will naturally attach to the mount, and the ties can be removed.
After mounting, hang the orchid in a location with bright, indirect light—similar to its natural canopy environment. Maintain high humidity (50–70%) by misting the roots daily or using a humidity tray. Water the orchid thoroughly when the mount feels dry, ensuring excess water drains away to prevent rot. Fertilize lightly with a balanced orchid fertilizer every 2–4 weeks during the growing season.
Check the orchid regularly for signs of stress, such as yellowing leaves or shriveled roots, which may indicate improper watering or light levels. Adjust care as needed. As the orchid grows, it may outgrow its mount; if so, remount it on a larger piece of wood or bark. Remove any dead leaves or debris to prevent fungal or pest issues.
New roots will emerge and cling to the mount over time. To encourage this, avoid disturbing the orchid unnecessarily. If the roots dry out too quickly, wrap them lightly with sphagnum moss to retain moisture. Once the roots are firmly attached, you can reduce the frequency of tying or remove the supports entirely.
