Hardy perennial flowering climber for deck lattice?
I was thinking about growing a flowering vine-like plant to fill out the railing lattice on my third floor balcony. I was hoping that one of you might have some suggestions. Ideally I'm looking for the following:
-- A perennial.
-- Can withstand the cold in a container. I'm in Boston (zone 6b) so preferably something that can withstand zone 5a.
-- A climber that will take to a deck lattice.
-- Long bloomer, hopefully throughout the summer.
-- Something with a non-overbearing smell to its blooms.
Anybody have any suggestions about a good direction to pursue?
I was thinking maybe Clematis or Wisteria?