Cherry blossom is the "unofficial" national flower of Japan, formerly called tree flower (KONOHA). Due to the long north-south geographical extension of Japan, cherry blossoms bloom at different times in spring all over the country, starting from Okinawa and ending in Hokkaido.
In Japanese culture, the cherry blossom (sakura no hana) is the embodiment of beauty and mortality.
Strength is associated with the cherry blossom, simply because a cherry blossom tree can stand the test of time and remain standing despite the weather that may challenge it. It will stand where it grows until its blossoms fully bloom when the spring season is about to arrive.