I was given an Angel Trumpet vine by a friend. It is loosing a leaf a day (and it did not have many to start). No real growth is appearing and it does not have good color.
I have never heard of an 'angel trumpet vine' - do you have a picture?
I was wondering the same as kayjones. There's an angel's trumpet plant (brugmansia), a devil's trumpet plant (datura) and several types of trumpet vines. A pic would definitely help.