Dendrobium nobile was my first orchid. It is about 20 years old. And I have always find it very easy to grow.
I have it in a wooden basket filled with bark and charcoal . I grow it outdoors. But we have mild Winters here. It does never snow and we only have a few days with temperatures below freezing.
During the Winter it stays in a sunny place and I don't water it or fertilize it. I just forget about it.
I begin to water and fertilize it during the Spring. And I water it every day during the Summer.
This is one of the pictures I have. It was taken two or three years ago.