Bronze Wave' is bigger than most Heuchera so its beefy size automatically makes it a focal point and its individual leaves with their huge, 6 in.-8 in. Dia add to it with their dark, bronze-purple color that makes it impossible to ignore. In fact, you'll find that you aren't the only 1 that can't take your eyes off this plant. hummingbirds love it when its spikes of pinkish-white flowers open in late May and continue into early July.purple undersides. The newest leaves emerge a bright copper orange color and then deepen to coppery purple as they age. Cream colored flowers on deep purple scapes in early summer. Increased tolerance of high heat and humidity over other species.