I have a plumeria frangipani that is showing spots on the leaves and some curling of leaves. I'm a beginner at this, but I'm worried about the plant and writing to get any advice or words of wisdom that anyone may have. I'm including some photos.
My daughter inherited a plant that she tells me is a plumeria frangipani, from a church group that needed a volunteer to care for it during the holidays. This was almost two years ago. She has been in charge of it until this fall when she went off to college and asked me to continue watering it. I've given the plant a cup of water per week, and kept it by the same window in her bedroom where it gets a lot of diffuse light through sheer curtains, but not a lot of direct sun. We are in Massachusetts, and the plant has been kept indoors the whole time we've had it. I remember it losing all its leaves in the winter and having them grow back in the spring and summer. It hasn't flowered at all, probably not enough sunlight next to the window here. But the leaves have been growing and healthy-looking until just now.
My primary ambition is to keep the plant alive and healthy until my daughter gets back for the winter break, and then again until summer. It went well for two months but now we have this leaf issue.
The first photo shows the plant itself. I moved it away from the window to take this photo.
The second photo shows a close up of the white spots on one of the leaves. All the leaves have this issue.
The third photo shows how some of the lower leaves are curling outward on one side.
I'd be grateful for any help or advice!