Cold Damaged Sabal - Any Help?

[Jdical]

Hi all this is my first post and I am in the Kill Devil Hills Area of OBX, NC. I have a few Sabal palms on my property and I recently planted 2 new 18 ft's last summer that rooted really well however I did not wrap them given the previous mild summer. So, of course, we had a terrible winter and all of my Sabals got some cold damage. Of the 2 I planted last year one is doing pretty good and has some really good growth and tight spears shooting through. The other has developed a soft trunk to about an inch in certain spots but is growing a nice spear but just incredibly slowly. I did dig around the palm and noticed that that around 18 inches it had solid roots that were alive and had grown significantly since I planted it. I cut off a lot of the brown fronds so it doesnt have a ton of nutrients getting to it. I included 2 pictures from June 11 and July 19. Any suggestions for further treatment beyond Copper Fungicide (I did treate it already)? Also, can these palms bounce back? Many thanks as this is my first post and I'm a recent memeber.  

[TexasColdHardyPalms]

Keep them watered and well fed throughout the summer and they'll fine.