My local supermarket had a false aralia âGold Coastâ so I had to buy it. I am pretty good at plants but I have already killed this one twice so I am here to ask for advice! Both times, the plant was perfectly healthy, and then a bottom leaf suddenly turned brown and fell off, and very slowly over the course of a couple of months it crept up the plant and killed it. I still have no idea what I did wrong. Any ideas?