This eye-catching perennial is admired for its stunning, long-stalked flower spikes and colour-changing leaves. The spikes display a beautiful two-tone effect: blood red coupled with a nearly black, very deep red. They add vibrance to the garden from midsummer to early fall. Blackfield Mountain Fleece's fluffy flowers also serve as a magnet for beneficial pollinators. The dark green, heart-shaped leaves take on lovely, butter-yellow tones as autumn approaches.Persicaria amplexicaulis