When the rainy season arrives in Japan, something magical follows: hydrangeas. Known as ajisai, these shifting, cloud-like blooms in blues, purples, and pinks have been celebrated in Japan for centuries — and every June, cities and countryside alike host festivals in their honor.
From a switchback train climbing through 10,000 flowers in Hakone to a free neighborhood shrine festival in central Tokyo, here are ten of the most beautiful and worthwhile hydrangea events to visit in 2026.
One of Tokyo’s best-known hydrangea events, the Bunkyo Hydrangea Festival takes place around Hakusan Shrine and Hakusan Park in central Tokyo. About 3,000 hydrangea shrubs bloom across the grounds, creating a classic early-summer scene of blue, pink and purple flowers on the shrine hillside. The festival is free to attend and usually comes with a neighborhood feel, with seasonal stalls, small events and a relaxed atmosphere that makes it easy to combine with a walk through old Bunkyo ward.
Where: 5-31-26 Hakusan, Bunkyo-ku, Tokyo
Nearest Station: 2 min walk from Hakusan Station (Toei Mita Line)
In western Tokyo, Akigawa Village hosts one of the largest hydrangea displays in the region. The festival features around 15,000 hydrangeas in roughly 60 varieties spread across a 30,000-square-meter hillside garden.
The landscape is especially known for its wide planting area and its scenic walking paths, so comfortable shoes are a good idea.
Where: 600 Kamiyo Tsugu Shiraiwa, Akiruno City, Tokyo 197-0832
Nearest Station: From JR Akigawa Station, take a taxi or a local bus to Tokyo Summerland, then take a free shuttle bus to Wonderful Nature Village
When: June 6–July 5, 2026, 9:00 a.m to 5:00 p.m
Ticket price: Adults ¥850; elementary school students and younger free
Yakushiike Park in Machida offers a double early-summer display, with irises and hydrangeas in the same landscaped grounds. The park is especially attractive for visitors who want a quieter, more garden-like atmosphere than a busy street festival.
Hydrangeas add a second layer of color to the park’s seasonal planting, making it a strong choice for a half-day visit in western Tokyo. Because bloom timing can vary, it is best to check conditions closer to your visit.
Where: Yakushiike Park / Ebine-en area, Machida, Tokyo
Nearest Station: From the North exit of Machida Station, take a Kanagawa Chuo Bus (Machi 53) and get off at “Yakushiike” or “Yakushigaoka” stop.
When: May 30–June 28, 2026, 6:00 a.m. to 7:00 p.m.
Kaisei Town Hydrangea Festival (Kanagawa Prefecture)
Kaisei Town in Kanagawa Prefecture offers a more rural hydrangea experience, with around 5,000 blooms set among rice fields and village scenery. The contrast between the flowers and the surrounding countryside gives the festival a calm, pastoral feel that is very different from urban shrine events.
The festival is easy to combine with a day trip from Tokyo, and in 2026 it is scheduled for June 6–14. It is a good choice for visitors who want a slower, more landscape-oriented hydrangea outing.
Nearest Station: From Odakyu Line Kaisei Station, take the direct shuttle bus from Kaisei Station to Hydrangea Village (about 7–10 minutes) during the festival period.
Hakone Tozan Railway Hydrangea Season (Kanagawa Prefecture)
The Hakone Tozan Railway is one of Japan’s most scenic hydrangea experiences. As the train climbs into the mountains, passengers pass through stretches of hydrangeas that line the route, creating a dramatic seasonal journey rather than a single viewing site.
The flowers bloom progressively at different elevations, so the season often lasts from early June into early July. That staggered timing makes it a flexible option for travelers who miss peak bloom elsewhere. Evening illuminated services are sometimes offered during the season, but schedules should be checked in advance.
Where: Hakone Tozan Line, Hakone-Yumoto Station to Gora Station, Hakone, Kanagawa
Nearest Station: Board the Hakone Tozan Railway at Odawara Station and ride to Hakone-Yumoto Station (first stop), then continue up the mountain to Gora Station.
When: Mid-June to late June 2026 for the special train service; hydrangea season runs roughly early June to early July, from 5:52 a.m. to 11:26 p.m. (Hydrangea Light-Up is from 6:30 p.m. to 10:00 p.m.)
Ticket price: Reserved seat fare ¥500 for adults, ¥250 for children, plus separate boarding fare
Mimurotoji Temple in Uji is one of Kyoto Prefecture’s most famous hydrangea destinations. Its garden holds around 20,000 hydrangea bushes in about 50 varieties, creating a dense and highly photogenic display through late spring and early summer.
The temple’s hydrangea garden is especially popular for its layered planting and peaceful setting away from central Kyoto’s busiest sightseeing areas. For 2026, the garden opens from May 31 to July 5, with illumination events held on selected dates.
Where: 21 Shigadani, Ando, Uji City, Kyoto
Nearest Station: From Mimuroto Station (Keihan Line), walk 15 minutes to the temple.
When: May 31–July 5, 2026, 8:30 a.m. to 4:30 p.m. (last entry at 4:00 p.m.)
Katsuoji Temple Hydrangea Festival (Osaka Prefecture)
Katsuoji Temple in northern Osaka combines temple scenery with a long hydrangea season that makes it a reliable early-summer destination. The temple is better known year-round for its daruma dolls, but in June, the hydrangeas become one of its main attractions.
Because the viewing period is relatively extended, it is a useful option for travelers with flexible dates. The mountain setting also gives the visit a quieter atmosphere than many city-based flower events.
Where: 2914-1 Aomatani, Minoh City, Osaka
Nearest Station: From Minoh-Kayano Station (Hankyu Line), take the Hankyu Bus (bus from Minoh-Kayano Station toward Katsuoji Temple) for about 20–25 minutes to the Katsuoji bus stop.
When: June 1–July 19, 2026, 8:00 a.m. – 5:00 p.m. (6:00 p.m. on Saturdays)
Ticket price: ¥500 for high school students and above; ¥400 for elementary and junior high school students; ¥100 for preschoolers; free for children under 2
Gamagori Hydrangea & Firefly Festival (Aichi Prefecture)
In Aichi Prefecture, Gamagori offers a particularly atmospheric summer outing, with hydrangeas blooming through June and fireflies appearing at night in the same seasonal window. The combination of flowers, evening light and insect activity makes it a memorable early-summer destination.
Visitors should check timing carefully, since both flower viewing and firefly activity depend on weather and seasonal conditions.
Where: 28-1 Ichinosawa, Kanehiracho, Gamagori City, Aichi
Nearest Station: From JR Gamagori Station, take the special direct shuttle bus from the South Exit during the festival period
When: June 1–30, 2026, 8:00 a.m to 9:00 p.m. (Last entry at 8:30 p.m.)
Ticket price: ¥500 admission; free for junior high school students and younger and certain disability certificate holders
Amidaji Temple Hydrangea Festival (Yamaguchi Prefecture)
Amidaji Temple in Hofu, Yamaguchi Prefecture, is one of western Japan’s notable hydrangea spots. The temple grounds hold around 4,000 hydrangeas in more than 80 varieties, making it a strong choice for visitors who enjoy variety as much as volume.
The 2026 festival is scheduled for June 1–30, giving it one of the longest viewing windows on this list. It is a good final stop for travelers looking beyond the better-known Kansai flower circuit.
Where: 1869 Mure, Hofu City, Yamaguchi
Nearest Station: 20 min bus ride from JR Hofu Station
When: June 1–30, 2026, daily from 8 a.m. to 5 p.m.
Ticket price: ¥200 for adults; junior high school students and younger are free
Kurobane Hydrangea Flower Festival (Tochigi Prefecture)
Kurobane Castle Ruins Park in Ohtawara City hosts a scenic hydrangea festival with around 6,000 blooms, colorful hanging umbrella displays and evening light-ups. The combination of castle ruins, flowers and night illumination make for great photo ops to capture the beauty of the hydrangeas in a different light.
Where: Kurobane Castle Ruins Park, Maeta, Ohtawara City, Tochigi
Nearest Station: FromJR Nasushiobara Station, take the Unganji Temple Line bus for about 40 minutes to the Daioji Iriguchi bus stop, then walk 10 minutes
Meigetsuin, famously known as the Hydrangea Temple of Kamakura, is renowned nationwide. In June, thousands of Princess hydrangeas (hime ajisai) bloom, transforming the temple grounds into a stunning blue gradient. This iconic spot is perfect for a romantic date on a rainy day or a serene stroll amid nature’s beauty.
Hasedera Temple (Kamakura, Kanagawa Prefecture)
Hasedera Temple, founded in 736, is celebrated as the “Western Paradise of Kamakura.” Known for its year-round floral beauty, the temple becomes particularly enchanting during the rainy season. The hydrangeas blooming on the slopes behind the Kyozo (sutra repository) offer a picturesque and tranquil scene. If you’re exploring Kamakura during the rainy season, Hasedera Temple is an essential stop to fully experience the city’s charm.
