Hi Donna!
I wouldn't worry too much about cutting off the flower spike, especially if the plant is/was stressed. A flower spike that has finished blooming, may indeed, put out more blooms, but I feel that the most important thing is to get the plant well established with good roots. More spikes will follow, when the plant is strong, and ready.
Now that you're starting to see good leaf, and root growth, and when it blooms for you again, then that spike could remain after blooming. To then give you another beautiful show!
This is one of mine that is about ready to "pop" again! ( I need to get out there and cut of the old part.
)
