I posted abotu Peony Festival in Ueno. In Toshogu Shrine where the festival is held, there are other flowers, too. Winter has fewer flowers than other seasons but still there are many that you can enjoy.
I also found a very unique plant which I saw for the first time in my life. It is Edgeworthia Chrysantha. Japanese name Mitsumata means three branches and I understood immediately why it was so called.
This plant is used to make Japanese traditional papers. The shpae of the flowers is very interesting.