This is my favorite time of year to visit Washington, DC

The
National Cherry Blossom Festival is a spring celebration in Washington, DC commemorating the, gift of Japanese cherry trees from Mayor of Tokyo to the city of Washington on March 27, 1912.
The trees were donated in an effort to enhance the growing friendship between the United States and Japan and to celebrate the continued close relationship between the two nations. The United States government responded with a gift of flowering dogwood trees to the people of Japan.
3,800 more trees were accepted in 1965 by First Lady Lady Bird Johnson. In 1981 Japanese horticulturists took cuttings from the trees in Washington, D.C. to replace Yoshino cherry trees in Japan that had been destroyed in a flood.
The most recent event in this cycle occurred in the fall of 1999. It involved the formal planting in the Tidal Basin of a new generation of cuttings from a famous Japanese cherry tree in
Gifu Prefecture reputed to be over 1,500 years old.
The National Park Service predicts the cherry trees will bloom between March 28 and April 11, with peak bloom April 1-4.

Which
cherry tree is which. There are actually five different varieties of flowering trees found around the
Tidal Basin - Yoshino, Akebono, Kwanzan, Usuzumi and Sargent.
For a panoramic view of the trees around the Tidal Basin, check out
this in the Washington Post.
The two-week festival is kicked off with an opening ceremony, followed by an array of activities and cultural events. Every day there is a sushi/sake celebration, classes about cherry blossoms, and a bike tour of the Tidal Basin. The
Smithsonian Kite Festival is held as the beginning of the festival on the last Saturday of March.