I've only had my Silver Philodendron for about a month, and it's now dying on me. It looked healthy when I first got it, and maybe two weeks after its been in my care, it's leaves began to yellow. Only the bottom leaves are affected, the ones closest to the soil/pot, and after a while, they start to develop brown spots. Also, the new leaf growth is very pale. It's kept by a window covered by a shade, and I water lightly, although I did allow it to overflow a while ago. This is my first philodendron, and I'd like to know how I'm hurting my plant.
Thank you!