Yup its quite common actually. Cutting 3-4 nodes up from the bottom will usually get it to activate. Often the second spike produces smaller and less flowers.
It happens on occasion. Sometimes a flower spike and sometimes a Keiki - a new plant will grow from an old flower bract. My aunt showed me her Phal on Xmas and asked me why there was a new plant growing off the flower stalk, damn thing could have been cut off and potted up long ago! LOL
I've had these for years and have never seen this. Now, 2 at once.
what the heck? i had no idea that they did that. thats actually pretty cool. what color are those orchids? i take it that they have flowered in your care before? please keep us updated if the second spikes flower!
oh, and while we are talking about orchids, i would like to ask how to get my phal to flower. he has a living flower spike on him. it is green, and the plant seems healthy, its just that the spike isnt doing ANYTHING. he had a couple flowers and 2 buds when i got him, which was some time in the middle of summer 2011. he flowered, and opened his other 2 buds over the course of about 1-2 month, mabey more, i dont quite remember. he has grown 2 new leaves since i got him. today, the flower sp8ke still looks fine but flowerless. do you think he is hungry for some fertilizer??
Phalaenopsis require a drop in night temperatures for a minimum of two weeks in order to initiate a flower spike. Arrange placement of your plant where it will experience night temps below 60F for at least 14 days in a row, without fail. That should start new flowering growth, either from an old spike, or it will make a new one. Sometimes both!