Spiraea douglasii Hardhack Spirea Native deciduous shrub grows to 6-12′ tall with showy pink flowers. Prefers wet habitats, spreading vigorously by rhizomes. Competes favorably with reed canary grass. Tolerates salt spray in shoreline plantings. Plant Type: Tree or Shrub Provenance(s): 02-Puget Lowland, 03-Willamette Valley Wetland Status: FACW