Diagnosing Root Problems in Phalaenopsis: Hollow, Dry Roots in Moss

Morgan's Phalaenopsis in moss had wrinkled lower leaves and mostly hollow, dry, brown roots—some white and firm at the tips. The expert explained moss is tricky: it holds water non-uniformly, stays wet at the bottom, and compacts, restricting air flow. Roots have a central conducting thread and spongy velamen (stores water, photosynthesizes). If velamen is partially lost but central thread intact, the root still functions—don't trim partially damaged roots.

Repot in soaked fir bark mix. Work aerial roots into the mix after heavy soaking to reduce brittleness. Rooting hormones with fungicide (e.g., Rootone) may help. Critical: soak dry fir bark thoroughly before use—it repels water when dry.