Non-Vining, Herbaceous
Full Sun, Partial Shade, Shade
Zones 5-9, grows 2 to 4 feet
Eastern China, 1837. This shrubby perennial bears clusters of rich blue half inch flowers atop a robust show of foliage. Each flower is only one half inch long, but the clusters make a good show of color in a perennial border. Pruning: Clear dieback in winter..