Today, it is still the oldest continuously operated public rose test garden in the United States. Home to more than 10,000 rose bushes, the site also boasts a special Shakespeare Garden ...

Here is the list. 1. Portland International Rose Test Garden, US Credits: Instagram/portlandrosegardens • This rose garden in ...

Washington Park is home to such notable landscaping feats as the Portland Japanese Garden and the International Rose Test Garden, as well as the World Forestry Center, Hoyt Arboretum and several ...