Yesterday I happened to go to a nursery to buy an Aerangis citrata, but I stumbled on a beautiful "mini" cymbidium 'Al' that was gloriously scented, so I had to buy it!

(I have no picture of mine but there is a picture from the grower's site
Sequoia Orchids providing Cymbidium orchids)
My problem is, it is still in flowers but there is 2 new psedobulbs growing and I keep reading that one should wait until the flowers were done before starting on the fertilizing regimen. Should I wait? And will MSU fertilizer do for a cymbidium? Or should I supply something higher in nitrogen to start with during spring?
Thanks!