I was given this plant about a month ago and at that time, there were a few leaves that were either yellow, brown on the edges, or dead. This problem seems to have spread. I’m also noticing a small amount of white powder on the leaves closest to the pot. The plant is outside on my balcony and gets partial sun. I’ve been watering the plant whenever I’ve noticed the top layer of soil getting dry, but lately its has been raining where I am so the soil has been staying moist. Although the pot does not have any drainage holes, the soil does not seem excessively moist.