Name: Big Bill Livonia Michigan (Zone 6a) If you need to relax, grow plants!!
Alice. No blooms = not enough sun.
The plant may be suffering due to the lower light intensity. The falling leaves sounds to me like the natural way that nodosa looses its leaves. They only stay on the bulb for three years tops.
Good luck.
Orchid lecturer, teacher and judge. Retired Wildlife Biologist. Supervisor of a nature preserve up until I retired.
