Our Bismarck palm has started having droopy fronds and some of the new fronds are turning almost white ,up until the past 2 weeks it has seemed to grow beautifilly,has seemed to be a perfect spot. We live 15 miles from Tampa Bay so we’re affected by hurricane Irma but didn’t have extremely high winds sustained. It has been in this spot for about 7 years,it is truly a beautiful palm one of our favorites.
Certified GKH Gardening Expert
These can act strange sometimes. The roots are VERY sensitive to disturbance. Even if you only had high winds for a short period, it could have still damaged the roots. It would be hard to correct if this is the case. You will just have to carefully watch the tree. Sometimes they recover, and sometimes they don't. They can take as much as 3 or 4 months to show symptoms of root trauma.
Here is a collection of articles on this palm that you may find helpful: https://www.gardeningknowhow.com/ornamental/trees/bismarck-palm/