I have three Dendrobium Nobile orchids. The one I’ve had the longest, close to 3 years, has never rebloomed for me. It’s some sort of a hybrid, unfortunately NOID. The other two are recent purchases. I’m excited to try to grow them and see if I might get them to rebloom next season. I believe the one I just got, pink and yellow flowers, might be the Oriental Smile ‘Fantasy’.