Washington Park International Rose Test Garden is the oldest public garden of its kind in the United States. The park was opened in 1916 and today hosts at least 250,000visitors annually.
In 1901 Portland, Oregon adopted the designation "the City of Roses" and the first Rose Festival was held in 1907. Washington Park International Test Garden has over 7500 plants comprised of 550 varieties of roses. The garden serves as a backdrop for many community events, Rose Festival programs, Portland's Best Rose Trials, the Gold Award Trials, the All American Rose Selection Trials and the Award of Excellence Miniature Rose Trials.