Orchids are often misunderstood as parasites due to their epiphytic nature, but they are not true parasites. Instead, they are air plants that grow on trees or rocks, using them as a support structure. Orchids derive their nutrients from the air, rainwater, and organic matter that accumulates around their roots.
While orchids in their natural habitat may appear to be growing on the surface of other plants, they do not harm their hosts. Instead, they form a symbiotic relationship where both the orchid and the host plant benefit. The orchid gains a stable anchorage and access to light, while the host plant is not harmed and often benefits from improved aeration around its roots.
As for growing orchids in water, while it’s not their natural environment, it is possible to grow certain types of orchids in water with the right approach. Here’s how:
- Select Suitable Orchid Species: Choose orchid species that are known to tolerate or thrive in water culture. Some orchids, like Phalaenopsis and Paphiopedilum, are better suited for this than others.
- Prepare a Water Culture Setup: Use a transparent container, such as a glass vase or jar, filled with distilled or rainwater. Tap water may contain chemicals that could harm orchid roots. Ensure the container has good drainage or air circulation to prevent water stagnation.
- Submerge the Orchid Roots: Gently rinse the orchid roots to remove any old potting medium. Then, place the orchid in the water-filled container, ensuring that only the roots are submerged while keeping the leaves and pseudobulbs above the water line.
- Provide Adequate Light and Temperature: Place the container in a location with bright, indirect light, as orchids still need light for photosynthesis. Maintain temperatures similar to their natural habitat, typically between 65-80°F (18-27°C).
- Monitor and Refresh the Water: Check the water level regularly and replenish it as needed to keep the roots submerged. Every few weeks, replace the water entirely to prevent the buildup of algae or bacteria.
- Fertilize Sparingly: Orchids grown in water may require less frequent fertilization. Use a diluted orchid fertilizer formulated for water culture, applying it at quarter or half-strength every few weeks during the growing season.
Growing orchids in water can be a fun experiment, but it’s important to remember that not all orchid species will thrive in this setup. Be prepared to adjust your approach based on the specific needs of your orchid and monitor its health closely.
