Q.Passion flower looking dead
I noticed my Passion flower looking rather dead, I have been growing this for 5 years and it has grown so much and was looking really good. I decided to give it some pant food to help and when I went to feed it I noticed the main branch had snapped!!! I’m really upset as it really was doing so well, I just wondered if there was anything I could do, or is this the end for my beautiful Passion flower?
It's possible your plant may grow back from the root.
This article has information on propagating Passion Flower from cuttings.
It could be a way to save your plant.