Doris, Your Iocroma is beautiful!
Becky is right hummingbirds love them.
They are in the brug family. I had one summer before last and tried to let it go dormant in my basement with my brugmansia. Treated it the same as brugs, but it didn't survive.
It seems to love the sunroom. Very pretty. I didn't notice a scent with mine. Does your have a scent?