Name: Big Bill Livonia Michigan (Zone 6a) If you need to relax, grow plants!!
Probably not.
Dendrobium nobile actually flowers after a period of cooler night temperatures. One night of cool won't hurt the Vanda. If it went through a week or ten days worth of low 40's, that might be a small issue.
Orchid lecturer, teacher and judge. Retired Wildlife Biologist. Supervisor of a nature preserve up until I retired.