From Apr 30, 2026 to May 4, 2026, the corresponding solar term in the Nijūshi Sekki (24 solar terms) is 穀雨(Kokuu), and the corresponding microseason in the Shichijūni Kō (72 microseasons) is 牡丹華(Botan hana saku).

What Is “Botan hana saku” (牡丹華)?

"Botan Hana Saku" (牡丹華, "Peonies Bloom") is one of the seasonal divisions in Japan's traditional Shichijūni Kō (72 microseasons), corresponding roughly to the period from April 30 to May 4 each year. The Shichijūni Kō is a classical calendar system that expresses the changing seasons in finer detail than the Nijūshi Sekki (24 solar terms), dividing the year into five-day segments that reflect subtle shifts in nature. Among these microseasons, "Botan Hana Saku" refers to the time when peonies bloom in all their splendor, symbolizing the vibrant transition from spring to early summer. Peonies are often called the "king of flowers" (百花の王) and have long been admired in both Japan and China as symbols of elegance and nobility. Known for their large, luxurious blossoms, they reach their peak beauty in gardens and temple grounds during this season, drawing many visitors who come to appreciate their magnificence. Around the time of "Botan Hana Saku," the weather is mild and pleasant, and the fresh greenery of early summer becomes especially vivid. Seasonal expressions such as those found in the Shichijūni Kō are also valued today as part of a cultural tradition that reflects the Japanese sensitivity to living in harmony with nature. In modern times, these seasonal terms are still used in calendars, seasonal greetings in letters, and haiku, and they continue to be cherished as expressions that evoke a strong sense of the changing seasons. "Botan Hana Saku" is more than simply a phrase marking the blooming of flowers. It is a poetic expression that conveys the beauty of Japan's four seasons and a deep appreciation for nature. Even amid the busyness of everyday life, taking a moment to admire the splendid peonies and notice the subtle changes of the season can bring a sense of calm and spaciousness to the heart.

List of Japan’s 72 Microseasons