Douglas' spirea, also known as hardhack, steeplebush, or rose spirea, is a native shrub found in the northwestern United States. It is characterized by its erect, deciduous form, reaching heights of 3-7 feet, and its ability to spread aggressively through rhizomes. The leaves are alternate, oblong, and dark green, with a whitish underside. The plant produces deep pink flowers in fragrant clusters, which bloom in midsummer. It thrives in moist, open sunny areas and is often found in wet meadows, bogs, and stream banks