Portland Parks & Recreation (PP&R)’s iconic International Rose Test Garden (IRTG) in Washington Park is celebrating its centennial this year (1917-2017). It was in February, 100 years ago, that Portland received official notice the American Rose Society had selected the city as the location for the national test garden, in part to help preserve European roses threatened by World War I. Now, a century later, the renowned site is the oldest continuously operating public rose test garden in the United States. Around 700,000 visitors come to the world-famous rose garden each year. The garden will remain open during construction.

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