I am no expert, but from what I have figured, they enjoy bright light, strong air movement and high humidity. The biggest problem is they become huge! I hang mine high in the greenhouse with the vandas, and ignore them. They flower continuously the whole year round. It seems that they don't have a fixed flowering season, they mature a spike, flowers develop, and before they are done, another spike starts from the same cane. As a result they start to look a bit untidy with a multitude of partly finished flowering spikes sticking out in all directions.