International Rose Test Garden, Rose test garden in Washington Park, Portland, United States.
The garden contains more than 10,000 rose bushes representing 600 different varieties across 4.5 acres of terraced landscape in Washington Park.
The garden opened in 1917 as a sanctuary for European rose varieties during World War I, when hybridists sent their specimens for safekeeping.
The Shakespeare Garden section presents roses named after characters from the playwright's works, complemented by a stone memorial and literature-inspired plantings.
The garden offers free admission year-round, with guided tours available during peak season from May through September when roses reach full bloom.
Professional evaluators assess new rose varieties in two-year trials, examining disease resistance and fragrance before commercial introduction.
Location: Multnomah County
Official opening: 1917
GPS coordinates: 45.51908,-122.70557
Latest update: May 27, 2025 09:59
Portland contains cultural venues and green spaces. Powell's Books occupies a city block. Washington Park includes gardens and a zoo. The Japanese Garden and Chinese Garden present Asian landscaping styles. Parks define the city layout, including Mount Tabor on an extinct volcano. The Portland Art Museum holds Native American art collections. Multiple bridges span the Willamette River, connecting different districts.
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