I sincerely appreciate all of the information that's been provided. Since the original post, I've picked up 3 more Dens. I have also stopped panicing
I'm in southwest PA. My Phals thrive in the west bay window which gets plenty of diffused light throughout the day and.
We also have a north facing herb window in the kitchen that gets fair to moderate direct light throughout the morning and diffused light for the rest of the day. Any suggestions as to which window the Dens should go? (Sorry no south facing windows)