Not sure if this is a bush gone wild or a tree of some kind.
and then there is this thing.
Looks like Rose of Sharon and Queen Anne's lace. Both non-native plants. The Queen Anne's lace has naturalized quite a bit.
first one is a perennial hibiscus if the flowers are really big (like 5 inches or more in diameter). Second is queen anne's lace... aka wild carrot
Althea, Rose of Sharon as indicated by the post above as well as the leaves.
Agreed, Hibiscus syriacus.
The first one is Hibiscus syriacus Red Heart.