Roads at Mount Vernon Place in and around this weekend's FlowerMart event will be closed from Thursday at 3 p.m. to Saturday at 11 p.m., FlowerMart officials said on their website.
The event is held at Mount Vernon Place, at the Washington Monument, and at the four adjoining blocks in each direction.
Traffic will be closed on all four sides of the Washington Monument. Madison Street and Monument Street (both westbound) will be closed where they intersect St. Paul Street and Cathedral Street (both southbound).
Two blocks north of the Washington Monument, Charles Street will be closed where it intersects Read Street. One block south of the Monument, Charles Street will be closed where it intersects Centre Street.
FlowerMart officials said that on-street parking near the event is free on Saturday.