Some individual azalea bushes in the park are estimated to be over 800 years old, dating back to the Kamakura period.
The park's azalea collection is recognized as a National Place of Scenic Beauty by the Japanese government.
The site is adjacent to Jo-numa Pond, which acts as an important habitat for various migratory waterfowl.
The park contains a specific area known for its 'Yamatsutsuji' (mountain azaleas) that have grown into tree-like forms rather than standard shrubs.
The local azalea cultivation history is documented in a dedicated research facility located within the park grounds.
Tsutsujigaoka Park is a historic botanical site in Tatebayashi, Gunma, world-renowned for its vast collection of ancient azalea shrubs. The park is designated as a National Place of Scenic Beauty. It houses approximately 10,000 azalea plants, including specimens estimated to be over 800 years old. The park's layout surrounds the scenic Jo-numa Pond, which serves as a central feature of the landscape. It is the primary venue for the annual Tsutsuji Matsuri (Azalea Festival) which takes place in spring. The grounds include expansive grassy areas, walking paths, and a dedicated memorial museum documenting the history of the azaleas. Its geographical location provides a unique microclimate that supports the long-term survival of the veteran shrubbery.
The raised wooden observation decks during the Azalea Festival, which provide a vantage point over the sea of red and pink flowers.
Visit during the peak bloom period in late April or early May to see the full floral display.
Walk the perimeter trail around Jo-numa Pond for the best landscape views away from the main garden crowds.
Bring sun protection as the flower-viewing areas have limited natural canopy cover.
Do not attempt to visit outside of the peak blooming season if your primary goal is the flower festival, as the visual impact is significantly reduced.
The park operates year-round, but access to the managed azalea garden is restricted to the peak spring blooming season.
Stay on designated footpaths to protect the root systems of the ancient shrubs; do not touch or pick flowers.
