Orchid grower Tom Harper discusses the ideal conditions for growing moth orchids (Phalaenopsis). The blossoms of phalaenopsis orchids come in a variety of sizes and colors, which makes them ideal for the beginning orchid enthusiast. Tom stresses the importance of purchasing healthy plants: Look for strong, upright specimens, with plenty of flowerbuds. The foliage should be bright green, with no signs of damage or insect infestation. The potting material you use will partly determine the care you give moth orchids. The traditional growing medium for orchids is bark chips, which drain very well. The faster the medium drains, the more frequently you'll need to water your plants. Sphagnum moss is also commonly used. It stays moist for a long time and is easy to work with. A soilless mix made of perlite and sphagnum drains quickly but retains moisture. Always allow moth orchids to dry out between waterings, and never let them stand in water. Provide bright, indirect light and ample humidity. The plants should receive no direct sunlight after 11 o'clock in the morning. Orchids require occasional transplanting. You'll know they're ready when the roots cover the surface of the container and the potting medium begins to hold too much moisture. When you transplant an orchid, you can also divide it to make more plants. Gently pull the roots, separating the individual plants. Remove all of the old potting medium from around the roots, and cut away any injured roots. Make sure the new containers are clean, add some potting medium to them, and plant the divisions. Fill in around the roots with more potting medium, firming it in place with your fingers.
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