I would really appreciate any help you could give me with these plants (picture provided). I just moved into this house and the neighbors have given me some information about them: they think they are morning glories; they think they bloom in the spring; and they have been thriving in this bed for years. I looked up pictures of morning glories and they don't seem to have the same leaves. I was here in the spring and I didn't see them bloom. So I am not sure either of those things are true. I have seen them thriving for months, but in the last month these brown spots have started to appear on the leaves and it is only getting worse. I live in a suburb just outside of Philadelphia, PA. and there has been a perfect amount of rain this year. None of the other plants around it are being affected in the same way.
Does anyone know what kind of plant this is? Does anyone know of a blight affecting plants like this? Do you know what could cause something like this?
Thank you in advance for any help you can provide.