Did it pull out of the core? Was it just the one leaf the broke? Vandas are more likely that Phals to start a new crown.

Hello richardol, Yes it's just the one newest leaf and pulled straight out from the core. It had jammed in the vase and foolishly I yanked it by the new leaf and out it came cleanly and completely. I am mortified. I do hope it comes good as I have only grown the vandas for about 18 months and they flower for me quite happily in the vases and I dunk them twice a week in the sink and spray them too. Can't believe I did it. Will it grow a new crown?
Thanks Hazel.

The best thing to do at this point is continue with the normal routine. No matter what, it will do better with no changes to adjust to besides the injury.

The most likely is that the crown is still intact if bruised and a new leaf will come on the opposite side. Or a pup will start at the base.

Either one will take awhile to happen, so just go on as normal. It will not die from this.

Hello richardol, Thank you so much for taking the time to advise me. I will do as you say and just continue as before and hopefully it will send another leaf up. You may be sure I will not be so careless again.
Thanks Hazel.