Each year from around mid-June to early August, Saitama's Gyoda Kodaihasu-no-sato comes alive with colorful lotus flowers in bloom. At the event, visitors can enjoy 42 different lotus varieties, including the Gyoda lotus, the American lotus, and the Chinese ancient lotus (Chugokukodaihasu) to name just a few.
On the park grounds, there is also a museum where you can learn more about the history of lotus flowers, and a 50-meter-high observatory tower which provides 360 degree views out over the lotuses and the surrounding rice fields.
Like all flower festivals, the exact dates can be subject to change each year depending on the blooming conditions. It's advisable to check the official event website closer to the flowering timeframe.