I have a bottle palm (hyophorbe langenicaulis) in my front garden that is about 4 years old. For the past 8 months it has been displaying a significant twist to the frond limbs as they age. I checked pH and it is 7-7.5 which seems a bit too alkaline to me, but I'm certainly no expert. It throws new spears with regularity and they seem fine initially, but once fully deployed they begin to twist. The tree was fertilized in late Spring in the hopes it was a nutrient issue but to no avail. I am including recent photos in jpg format in the hopes someone can determine the issue.