A native rose to the swamps, banks, and marshes of the eastern United States, Rosa palustris, better known as  Swamp Rose, is a perennial shrub that grows from three to eight feet tall (at maturity).  Its fragrant pink, solitary blooms last for six to eight weeks in June and July and are followed by colorful rose hips to add interest to the fall garden, as well.  I have admired Swamp Rose for many years from afar, and now I am pleased to add it to my plant list and garden.  Seed grown.  Full sun in Zones 4-9.  (Photo courtesy of Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database / USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln.)