"Cherry Blossom" and "Sakura" symbolize many different things..
In Japanese culture Cherry Blossoms serve as reminders of humanity and mortality since, like cherry blossoms, a human beings life can end at any given moment. They are brief, a result of instant beauty and the immediate death of the flower. Nowadays, the flower represents innocence, simplicity and the coming of spring.
In China, they represent feminine beauty and dominance. It is also a symbol of a woman's attractive looks and her ability to command men by her beauty and sexuality. Too many, they also represent power and strength.
With this being said, adding a few blossoms into your hair would not only look amazing, but it will show your strengths and beauty.