Hello! Hoping someone may be able to help me with propagating this elephant bush (Portulacaria Afra)! I keep failing at it and I’m not sure why! I got these cuttings from my Aunt, might have left them out of soil a few days too long to callus though. I watered thoroughly after planting then have left it alone for over a week, and now leaves are dropping off. Any suggestions?? Could I be planting the cuttings too deep?