Lathyrus latifolius mix.
Aka Perennial Pea. Cultivated since at least the 13th C., this beauty was grown by both Washington and Jefferson. Large, beautiful flowers in shades of rose grow almost in clusters on 6 - 9' twining stems from summer - fall. Not scented, but they make up for it with their hardiness and beauty. They look gorgeous growing up a pergola or arbour. Sun; Z 3 - 10.