I just realized a 160-50 cutting was planted upside down (thank you, RunsSlow!). I stared at it for about 20 minutes trying to tell, but the markings were all ambiguous. It grew roots on both ends. I finally cut it in half, and planted both ends. The one that I planted correctly died. The one that I planted upside down grew a ton of roots and pushed up a leaf.
I am not even sure how that works. Does the xylem travel down the cutting, then back up from the budded leaf?
Any experts? lol.