I have noticed this brown spot on my schomburgkia that is a cutting I got in May that has been growing quite well overall. Is this something I should be concerned about? If so, what do I need to do?
I don't think it is a problem. At this point, just observe. If it is mushy and spreading then "surgery" may be in order. But more likely, it'll just sit there, dry up if not dry already. If you're concerned about it, you could draw a line around it with a Sharpie to determine whether it is spreading or not. But for now, just observe.