Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Predicted Peak Cherry Blossom Season Dates to be Announced by Associated Press WASHINGTON -- The predicted peak blooming period for this year's cherry blossom season in Washington is being announced. The window is expected to be announced Wednesday at a news conference at the Newseum. Last year's peak bloom happened March 25. According to the National Park Service website, however, from 2013 to 2015, peak bloom was around April 10. Peak bloom means at least 70 percent of the trees around Washington, D.C.'s Tidal Basin are blossoming. Once peak bloom is reached, the blossoms can remain on the trees from four to 10 days. This year's National Cherry Blossom Festival , which is timed to coincide with the blooming, will be held from March 20 to April 16.