Passion Fruit Propagation

I have been trying to propagate Passion Fruit vines for over a month using common techniques I researched, but kept failing; however, I finally found the cause. I was taking cuttings from newly grown vines, which were soft and not mature. Now I select older and more mature vines and they survive. 

I cut the leaf in half to minimize moister loss.

Next I scored the end to promote water intake.

Stick in the soil, water well and shade from direct sunlight until new growth begins.

(28 March) 9 days and the cuttings are doing fine. I planted a Celery core in the Center.