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.

Photo Coffee1000mg (CC BY-SA 4.0) — via Wikimedia Commons
About 156 cherry trees and 160 or so pines line a 1.1 km avenue through central Towada, one of Japan's top 100 roads. During the spring festival the trees are lit up and horseback archery is held under the blossom.