Well, this turned out to be a bad sign...
This phal had a sordid history. It went through a period of suffering from root rot. I thought it was on the mend though, given all the growth. But... I should have heeded advice and switched to bark. Apparently the moss was packed a bit too tight and root rot started again.
My Phal looked so terrific and full of promise, more flowers than the last time. However, just prior to blooming, it stopped. For several weeks, the buds had no growth. A couple were quite big, looking like they were ready to pop. But nothing.
Then... one of the buds started changing color. Over the course of a week, it turned to a very bright purple. It was dying.
So, I pulled the plant. Sure enough, the roots were rotting again.
There are 8 buds just waiting to bloom, but now another is showing signs of changing color. I guess this bloom cycle is going to abort completely.
Any advice? Should I pull all the moss and just let it air out completely? Is there any hope?