We don't have a native Stewartia at home, but we should. It's a lovely shrub, full of flowers when healthy and doing well.
Stewartia malacodendron (Silky Camellia) is one of our native species of Stewartia in the Southeast. The sister Asian species are also nice.
This specimen was in the NC Arboretum, along with several others, next to the Education Center. It was in full flower-- delightful!