Exactly as the name describes, this variety is a ‘haven’ for everything that hums. Hummingbirds, hummer moths, butterflies, and bees are all very, very fond of canna ‘Hummerhaven.’
Waves of little red flowers appear on enormous stalks and are surrounded by large, lush, green leaves. An extra-tall variety, it can reach at least 8-10ft in height — possibly taller.