Hello, I have dietes (not sure which, received the seed in a trade) which I have growing in a pot. It has steadily increased in size each year. I bring it in and allow to grow on through the winter under lights. It's about 5 years old now. Do they require a dormant period in order to encourage bloom? How hardy of a plant is it? It also has sword shaped leaves like d. grandiflora, can I assume it is? I have a cold room, should it go there for a while? Thanks Linda Foulis Okotoks, AB Canada