most hybrid catts dont need a winter rest....that just slows em down....as a matter of fact, i dont winter rest anything in my house....i have a couple nobile dens too, and it doesnt seem to affect them...they bloom fine.....keep watering and feeding...
Depending on what Vandas you have if you are not getting blooms you probably don't have enough light. If you do have new root growth and new leaf growth then the flowers may not be to far off.
You should be happy they don't all bloom in the spring. How boring it would be to have them all bloom now and then nothing until next spring. This way you should have something blooming almost all year long. And, some even bloom in the winter.
Beverly A.
Have these same plants bloomed in spring before? Are they of mature size to bloom? If they have bloomed at this time last year and there is no sign of spikes at all, then maybe light is an issue. Did they grow outdoors before?