Cherry blossom is three weeks of it. Flip through the other forty-nine — and watch what's in bloom move up and down the country.
The calendar is the way in. Underneath it sits the ordinary thing — search, filter by month or flower, and open any of the 412 spots.


Photos Yuya Sekiguchi (CC BY 2.0) — via Wikimedia Commons
The castle of the Sanada clan, which twice held off Tokugawa armies, is now a park where the ginkgo trees by the moat and gate towers drop a thick carpet of gold leaves in November. Free.