Topic: Tall growing, full sun something

[Patty S]

I don't like the Quince bush that's behind my Datura & Amaranthus, so I cut it way back... & now the garden bed looks stupid. (I want to remove that Quince once & for all, but I need to replace it with something tall.)  A gal from the garden club told me to go to her house & get some of these plants from her yard, cuz she wants to put something else in their place... so I did.   She says they're pretty tough & don't mind being moved (even in this weather).
     

BUT... she can't remember what they're called!
     

They can get up to 14 feet tall, they like full sun, & later in the summer they'll put out lots of yellow flowers that look like sunflowers / asters / daisies.

Anybody know what they're called?

[Dianna]

I know what it is, but can't dig the name out of my head to save my life...