Hey Greenman -
This is a subject close to my heart! I've had one of these (sanderiana type) for about 4-5 years, and it has grown like a weed, but no flowers. Yet. I was directed to this page:
Cattleya warscewiczii
I've always just treated it like all the other orchids, which apparently is why I have a lovely foliage plant now. Photos attached of the plant last fall and early this spring, after starving that poor thing of water all winter and spring. Full sun is never a problem here. I put it outside about 2 months ago, and we are in an intense monsoon season here in south Louisiana. It has been watered thoroughly almost daily; the p'bulbs have plumped out nicely; there are probably 8-9 new growths (I did let them grow to 4" or so before submitting to the daily rains). I am really hoping that it will bloom later this summer (the type I have *supposedly* blooms late in July.
I'll keep you posted. I am filled with hope.
Regards - Nancy