Yes, it happens, even as the leaves are turning reddish-brown and falling off. There are several autumn-blooming trees around the National Mall.
Guide to the National Cherry Blossom Festival in Washington, DC
Here comes the bloom! Nats, Wizards honor DC's cherry blossoms
How to Find New York City's Cherry Blossoms - The New York Times
Great White Cherry Blossom Tree Prunus 'Tai-Haku
Where to view cherry blossoms in and around Washington, DC with families - Beltway Bambinos
What to Know About the Cherry Blossoms in Washington, DC
DC cherry blossoms are officially in stage 5
Great White Cherry Blossom Tree Prunus 'Tai-Haku
Cherry Blossom Festival (U.S. National Park Service)
Here comes the bloom! Nats, Wizards honor DC's cherry blossoms
National Mall and Memorial Parks - Happy First Day of Spring! There's no better symbol of the season than the lovely cherry blossoms. With the trees around the Tidal Basin in peak
Here comes the bloom! Nats, Wizards honor DC's cherry blossoms