Ive had this plant for several years. Recently it boomed in growth then I over watered it and it began suffering. When I repotted it I trimed roots a bit, didnt see much rot. I put bone meal in fresh soil fresh pot and it began turning yellow. Ive since repotted it twice. flushed the bone meal added a small amout of soil acidfier, still turning yellow. second repot I flushed it and put it i fresh soil with unused coffee grounds and watered with cold coffee. its still turning yellow! its not just old leaves its any leaf. some old leaves are still green. the yellowing effects both young and old. im just at a loss on what to do.