2026 Katsushika Iris Festival (Mizumoto Park)
An early summer flower festival held annually from late May to mid-June at Mizumoto Park in Katsushika Ward, Tokyo. Approximately 100 varieties and 14,000 irises bloom in water-filled iris beds, and visitors can enjoy the delicate colors and patterns while crossing long yatsuhashi (zigzag bridges). Hydrangeas also reach their peak during the same period, creating a beautiful floral harmony. Events include a folk song parade, food stalls, a tea house, charity karaoke, stage performances, and a local vegetable market. As a two-venue festival with Horikiri Iris Garden, free shuttle buses connect both venues and nearby stations on weekends. Admission free, no reservation required.
2026 Katsushika Iris Festival (Mizumoto Park) に関する情報をみんなで持ち寄りましょう。
Event Info
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The mass planting of approximately 100 varieties and 14,000 irises is the main attraction. Viewing from the yatsuhashi bridges over the water is exceptional. Hydrangeas bloom simultaneously for a dual flower experience. Diverse events include a folk song parade and food stalls. A two-venue festival with Horikiri Iris Garden with free shuttle buses on weekends.
history_eduHistory & Origins
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An annual flower festival at two venues—Horikiri Iris Garden and Mizumoto Park—in Katsushika Ward. Horikiri's iris cultivation dates back to the Edo period, reaching its peak during the Meiji and Taisho eras. In 1971, the iris was designated as the official flower of Katsushika Ward. Mizumoto Park features approximately 100 varieties and 14,000 irises.
event_repeatPast Editions
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An annual flower festival at Horikiri Iris Garden and Mizumoto Park from late May to mid-June. In 1971, the iris was selected as Katsushika Ward's official flower by public vote. The Mizumoto Park venue features about 100 varieties and 14,000 irises.
directionsAccess
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Take a Keisei Bus from Kanamachi Station (JR Joban/Keisei Kanamachi Line), alight at 'Mizumoto Koen,' then 5 minutes on foot. On weekends, alight at 'Hanashobu-en' for a 1-minute walk. Free shuttle buses run on select weekends (5/30, 31, 6/6, 7, 13, 14). Metropolitan park with parking available.
groupsCrowd Forecast
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Weekends are crowded, so weekday mornings are recommended. Shuttle bus days are especially busy. The park is large, so crowds disperse, but the yatsuhashi bridges can be congested with photographers. Irises are most beautiful in the early morning.
hotelBook a hotel in 東京都 葛飾区 earlyPRchecklistTips & What to Bring
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Admission free; open 24 hours as a metropolitan park. Peak bloom: early to mid-June. Hats and sunscreen recommended for sun protection. Wear comfortable walking shoes as the park is large. Visiting Horikiri Iris Garden as well is recommended.
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10/19〜10/25、
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Visitor Report
An early summer tradition at Mizumoto Park with approximately 100 varieties and 14,000 irises blooming across the vast grounds. Visitors can admire the delicate petal colors and patterns while crossing the yatsuhashi bridges over water-filled iris beds. Many recommend early morning visits when the flowers are at their most beautiful. Hydrangeas also bloom simultaneously, adding to the floral spectacle.
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