Thousands of orchids in peak bloom are on display at this festival and sale at the National Arboretum. There also are drop-in lectures and tours.
10 a.m. to 3 p.m. U.S. National Arboretum, 3501 New York Ave. NE. 202-245-2726. www.usna.usda.gov .
The start of basketball season
Rapper Wale will be on hand for the Wizards Season Tip Off, an open practice in which visitors can see how rookie Bradley Beal, guard John Wall and the rest of the team look before the start of the 2012-2013 season.
6:30 p.m. Patriot Center, 4500 Patriot Cir., Fairfax. 202-397-7328, 703-993-3000. Register at www.nba.com/wizards .
Meet the Artist: Jeroen Eisinga
Dutch artist Jeroen Eisinga will discuss his work, including his video “Springtime,” in which he is swarmed by thousands of bees.
7 p.m. Hirshhorn Museum and Sculpture Garden, Independence Avenue and Seventh Street SW. 202-633-1000. www.hirshhorn.si.edu .
‘Mark Lombardi: Death-Defying Acts of Art and Conspiracy’
The Smithsonian American Art Museum screens a documentary about the late artist Mark Lombardi, whose work showed connections between terrorism and global finance.
7 p.m. Smithsonian American Art Museum, Eighth and F streets NW. 202-633-1000. www.americanart.si.edu .
See the North Carolina-based instrumental artist intertwine rock, African, jam-band and folk music traditions at the Kennedy Center’s Millennium Stage.
6 p.m. Kennedy Center, 2700 F St. NW. 202-467-4600. www.kennedy-center.org .
Maryland Festival of the Arts
Downtown Silver Spring plays host to national and international artists displaying more than 10,000 works, including paintings, sculpture, jewelry, photography, glass, fiber, ceramics and mixed media.
10 a.m. to 6 p.m. Saturday; 11 a.m. to 5 p.m. Sunday. 908 Ellsworth Dr., Silver Spring. www.paragonartevents.com/maryland .
‘Roy Lichtenstein: A Retrospective’
The National Gallery of Art celebrates the work of the late pop artist Roy Lichtenstein with an exhibit of more than 100 paintings from throughout his career, the first major exhibition since the artist’s death in 1997.
Through Jan. 13. National Gallery of Art, Fourth Street and Constitution Avenue NW. 202-737-4215. www.nga.gov .