Clustered Rose
Rosa pisocarpa
Rosaceae · broadleaf · native
You recognize Clustered Rose by the clustered pink flowers appearing in summer on 6-8 foot shrubs in moist riparian areas and wetlands of western Oregon and Washington. The packed clusters of 2-10 small deep pink blooms followed by globe-shaped hips give this native its common names. It spreads by creeping rhizomes and readily colonizes disturbed moist soils.
Plant Clustered Rose in moist to wet soils where it tolerates both sun and shade, though flowering is best in full sun. This adaptable native thickens quickly in appropriate conditions. Prune once-blooming types after flowering. Numerous diseases are documented in PNW records; avoid overhead watering and provide good air circulation. The spreading rhizomatous growth makes it useful for erosion control in riparian zones.