Quote Originally Posted by remo View Post
On this issue I have a question for the gurus. I have a couple of catts which have brown sheaths on what look like perfectly fat & healthy pbulbs that have never done a thing-what is up with that?
remo
It's called a blind sheath. They can be produced on non-mature pseudobulbs. Some catts produce them when a pseudobulb matures in a non-bloom season for the plant.