Shimonita Hydrangea Garden

About the 2025 Shimonita Hydrangea Garden

The Shimonita Hydrangea Garden is located near the Shimonita IC, serving as the eastern gateway to our town. Spanning approximately 3 hectares, the garden boasts around 20,000 hydrangea plants and about 1,200 crape myrtle trees, making it one of the premier hydrangea gardens in the Kanto region.
Please cooperate with the one-way walking route inside the garden.

Entry Procedure

Reception → Payment of Cooperation Fee at Reception → Garden Stroll → Exit
Period: Monday, June 2 to Sunday, June 29, 2025
Hours: 9:00 AM – 5:00 PM
Cooperation Fee: Adults: 300 yen / Elementary School Students: 100 yen / Children below elementary school age: Free
Parking: Free parking available (only during the open period)

Hydrangea Bloom Updates

The latest bloom information is shared via the town’s and the Tourism Association’s official social media channels:

Overview of the Shimonita Hydrangea Garden

Aiming to Be the Premier Hydrangea Garden in Kanto

The garden features about 20,000 hydrangea plants and approximately 1,200 crape myrtle trees, making it one of the largest hydrangea gardens in the Kanto region.
Located at the eastern gateway of Shimonita Town, planting efforts began in 2004, led by the town.
Following that, a local volunteer group, the “Hydrangea Cultivation Society,” was formed to continue planting, nurturing, and managing the garden.
Through these management activities, the project strengthens community ties and serves as a model for regional revitalization through town-resident collaboration (“cooperation”).
In addition to full community volunteer participation, the project receives support from Shimonita Town, the Seven-Eleven Green Foundation, the Tomioka Corporate Association, and cooperation from local construction companies.

About the Crape Myrtles at the Shimonita Hydrangea Garden

Approximately 1,200 crape myrtle trees are planted within the garden, blooming in a variety of colors from early August.
While visitors are welcome to stroll through the garden year-round, please note that maintenance of walking paths (such as the placement of wood chips on slippery areas) is only conducted during the hydrangea garden’s open period.
Visitors are responsible for ensuring their own safety when walking through the garden.
Also, during the garden’s off-season, no parking guidance is provided.
Please refrain from parking on the street, as it may obstruct traffic.

Video Introduction at Gunma Prefecture’s Video and Broadcasting Studio “tsulunos”

A video introducing the Shimonita Hydrangea Garden has been released on “tsulunos.”
You can watch it at the link below　(Please note: Available in Japanese only.):

Hydrangea Garden Guide Map

You can download the parking lot and venue map here(Please note: Available in Japanese only.):
Hydrangea Garden Guide Map(PDF)

From Shimonita IC

(Please note: Available in Japanese only.)
From Shimonita IC(PDF)

From Tomioka Area

(Please note: Available in Japanese only.)
From Tomioka Area(PDF)

(Video URL will be provided once uploaded.)

From Nagano Prefecture

(Please note: Available in Japanese only.)
From Nagano Prefecture(PDF)

Car Navigation Setting

Please set your destination to:
1471-1 Mayama, Shimonita-machi, Kanra-gun, Gunma Prefecture
Proceed 100 meters south to reach the free parking area.