Tsutsujigaoka Park is a large public park in Hanayama-cho, Tatebayashi City, Gunma Prefecture, and is widely known as one of Japan’s most celebrated destinations for viewing azaleas.
The park covers approximately 49,890 square meters and is home to around 10,000 azalea plants representing more than 50 varieties. In spring, the grounds are transformed into a spectacular display of vivid colors. In recognition of its scenic beauty and historical significance, the park has been selected as one of the 100 Historic Parks of Japan.
Tsutsujigaoka has been celebrated as an azalea-viewing destination since the Edo period and remains one of Tatebayashi’s best-known attractions. In addition to its famous spring flowers, the park offers lotus blossoms in summer, seasonal scenery, historic buildings, and beautiful views of the nearby lake throughout the year.
One of the park’s greatest attractions is its collection of ancient azalea trees. The area was carefully protected by successive lords of Tatebayashi Castle, and some of the park’s wild azaleas are estimated to be more than 800 years old.
It is extremely rare in Japan to find such an extensive collection of ancient azaleas preserved in their natural setting. The trees are therefore valuable not only for their beauty, but also for their historical and cultural significance.
The park features many varieties, including Rhododendron kaempferi, Kirishima azaleas, and Ryukyu azaleas. Particularly noteworthy are the many old specimens of Edo Kirishima azaleas, which have been cultivated since the Edo period and provide an important connection to the history of Japanese horticulture.
The beauty of the area is also celebrated in Jomo Karuta, a traditional card game featuring places and cultural icons of Gunma. One of its verses refers to Hanayama Park as a famous azalea-viewing spot. Locally, Tsutsujigaoka Park is also affectionately known as “Hanayama,” or “Flower Mountain.”
Every year, the Tatebayashi Azalea Festival is held from around early April to early May. During this period, the park’s azaleas burst into bloom, covering the hillsides with vivid shades of red, white, purple, and pink.
At the peak of the flowering season, visitors arrive from throughout Japan, and the park attracts hundreds of thousands of visitors each year. Because the festival overlaps with the Golden Week holiday period, traffic around Tatebayashi can become extremely heavy. Locals even refer to the congestion as “azalea traffic.”
The local community also plays an important role in preserving the historic azalea landscape. Every year in late May, local elementary school students and volunteers participate in a process known as shibō-tsumi, or removal of spent seed pods. This helps the plants produce beautiful flowers again the following year.
Tsutsujigaoka Park is also home to special azaleas known as “Space Azaleas.” In 1994, seeds from azaleas were carried aboard the Space Shuttle Columbia by astronaut Chiaki Mukai, who was born in Tatebayashi.
The plants grown from these space-traveled seeds offer a unique attraction in the park. Ancient azaleas that have been preserved for centuries stand alongside these plants connected to the exploration of space, creating an unusual meeting point between local history and modern science.
The park is home to the Tsutsuji Video Learning Center, where visitors can learn about azaleas in an engaging and interactive way.
The facility features exhibitions introducing the history and ecology of azaleas, as well as a rare 4D theater dedicated to azaleas. In addition to vivid images of azaleas in full bloom, the theater incorporates special effects such as wind, vibration, and mist, creating the sensation of being surrounded by flowers.
The facility allows visitors to experience the appeal of the park’s azaleas even outside the main flowering season.
The park includes an area known as the Four Seasons Garden, where visitors can enjoy flowers and natural scenery throughout the year. Plum blossoms add color in early spring, while fountains and water-play areas provide a refreshing place for families during summer.
On the western side of the park is a spacious 10,000-square-meter lawn. The open area is ideal for picnics, children’s play, and leisurely relaxation, providing plenty of room to enjoy the outdoors.
Just beside Tsutsujigaoka Park lies Lake Jonuma, a large lake stretching approximately 3.8 km from east to west. Covering around 50 hectares, the lake is located close to central Tatebayashi while retaining a rich natural landscape.
Azaleas decorate the area in spring, while lotus flowers create a different kind of scenery in summer. From July through August, the Hanahasu Festival features sightseeing boats that travel through the lake among masses of blooming lotus flowers.
Walking paths around the lake include the Literature Promenade and the Asahi Promenade. These paths provide pleasant opportunities to walk while enjoying views of the water and surrounding scenery.
A ferry terminal is located on the northern side of the park. During the azalea festival, regular boats operate between the park and surrounding areas. Sightseeing boats also cruise around Lake Jonuma, offering visitors a different perspective of the park.
Seen from the water, the azalea-covered hills take on a character quite different from the view on land. A leisurely cruise, accompanied by the breeze from the lake, provides a memorable way to experience the scenery.
Several historic buildings can also be found around Tsutsujigaoka Park. Among them is the Former Akimoto Residence, a building associated with the Akimoto family, former lords of Tatebayashi Domain. It was constructed in the late Meiji period and offers visitors a chance to experience the atmosphere of an earlier era together with its peaceful garden.
Nearby, the Japanese Iris Garden features around 100 varieties of irises. Around June, the flowers bloom in beautiful shades of purple and white, extending the area’s seasonal appeal beyond the spring azalea season.
Several attractions around Tsutsujigaoka Park offer opportunities to explore Tatebayashi’s history and culture. These include the Site of the Main Keep of Tatebayashi Castle, which preserves traces of the city’s castle history; the Katai Tayama Memorial Museum of Literature, dedicated to the influential Japanese writer Katai Tayama; and the Chiaki Mukai Children’s Science Museum, which introduces the achievements of Tatebayashi-born astronaut Chiaki Mukai.
Visiting these attractions together provides a deeper understanding of Tatebayashi’s history, culture, nature, and scientific heritage.
Tsutsujigaoka Park is much more than a spring destination. Visitors can enjoy azaleas in spring, lotus flowers in summer, seasonal nature in autumn, and quiet lakeside scenery in winter.
Ancient azaleas preserved over centuries, unique Space Azaleas, beautiful views of Lake Jonuma, historic buildings, and educational facilities come together to create a diverse destination that can be enjoyed throughout the year.
When visiting Tatebayashi, take time to explore Tsutsujigaoka Park and appreciate both the magnificent azalea landscape preserved through generations and the peaceful natural surroundings of Lake Jonuma.