How to get phaelonpsis orchids to rebloom

[Kas]

Hi all,

I’m new here so hopefully you can help me out. We received as a gift 3 orchids in full bloom April last year that lasted until September. At the end of the season I cut the stems down to just above the last node as per expert advice. Now, one of the orchids had grown a new spoke with bulbs while the others that have been getting basically the same treatment have yet to show any signs of new growth aside from new leaves. I water lightly about once every two weeks. Should I be doing something different to encourage new spikes or just be patient?

Thanks for any advice you can provide!