B. nodosa does well mounted and in pots, but the mounting process may cause it not to boom the next cycle. Mine only blooms once a year, in winter, here in the Ohio Valley. The thick, pencil like leaves are an indication it needs a lot of light. As you expose it to more light, first the edges ot the leaves will get a reddish cast then with more light most of the leaf will turn reddish/purple.
I find it difficult to give it enough light. Outdoors from now until fall it will turn most of the leaves red. In the fall when I bring it in the red fades even though I have it in a greenhouse with high intensity lights. It is just finishing its bloom and ready to go back outside and I took pics of the leaves today at their greenest. The last pic is just so that you know it bloomed this year.
The brassavolas also like to form this big mass of roots, I think that it makes its own microclimate. When you start to get this big ball of roots then you will get more blooms.
Last year this plant put out many spikes but the flowers dried before opening.
I thought it was because the plant, which was mounted, had the root mass vertical and the water was just running off. So I transferred it to a large cork raft with the root mass horizontal so that the water could soak in. I justed moved it, squashed it down and tied it-- no pruning of the root mass. It rewarded me with a massive bloom this year. It took 1st place in Cattleya class and got the Betty Forker Cattleya Alliance Memorial Award.