Plant Id

Plant Id

I'm visiting my mom in TN (zone 6-7) and she has a strange plant growing near her bird feeder garden. It is about waist tall and has large leaves, a thick stalk, and rather pretty trumpet shaped flowers. There are also strange spikey ball type things on the forks of the stalks. Does anyone know what this is? Thanks in advance!
New garden pictures

New garden pictures

white cosmopolitan

white cosmopolitan

Oh, the hard work pays off.

Oh, the hard work pays off.

I am so going to cry…

I am so going to cry…

YakPak 3 for $10 deal

YakPak 3 for $10 deal

Moy Grande Hibiscus

Moy Grande Hibiscus