Dracaena Cane Shriveling
I've got a Dracaena Janet Craig (or maybe Lisa?), which seems to be doing fine, though lately I've noticed that the canes are starting to show a little bit of wrinkling, as you can see in the somewhat lousy picture I took with my cell phone.
I've had the plant for a few years and it's in a very good substrate which drains well. From a somewhat logical standpoint, it would seem that this could be caused by underwatering, but I wanted to see if any of you had experienced this, and if you could offer any insight.
Here is a link that might be useful: