I received my philodendron about 4 months ago and re-potted it with Dr. Earth potting soil. I keep it in an East facing window about a foot from the window. I live in Northern California in the mountains, where daytime temps in the house are somewhat chilly at around 55 degrees.
Within the past 2 weeks I have noticed these red ringed spots on nearly every leaf of the plant. I stopped using tap water and switched to room temperature rain water for my plant thinking that might have been part of the problem but now I'm concerned it may be diseased.
Can any experienced house plant experts out there advise me on what is going on, and what I should do?
Attached is a picture showing these spots.
Thank you in advance,
Kayla
