Q.My Bismark Is About 6 Months And The Center Prons Dont Seem To Be Opening Up?
There about 3 center prons that aren’t opening up all the other ones a full and open. Maybe I just am a worry wort!

Certified GKH Gardening Expert
Make sure it is planted in full to part sun and is receiving all the nutrients it needs. A soil test will determine whether it needs potassium, boron, or magnesium. You are just outside its hardiness zone, so it could have chill damage. These care tips should help:
https://www.gardeningknowhow.com/ornamental/trees/bismarck-palm/growing-bismarck-palms.htm