My Mom passed away last year and my sis had one plant left of my Moms, not doing fantastic. I think it is a philodendron. I took two leaf cuttings and put rooting hormone and stuck them in dirt. (That was July 14, this year)They have not died yet but they have not rooted either. One of the leaves is turning brown. Is there anything I can do to get these leaves going? It is very sentimental....any help would be greatly appreciated!!!!