where is the smithsonian butterfly garden located in dc
Plan Your Visit. Smithsonian Gardens are located around museums throughout the National Mall in Washington, DC. They are open year-round, seven days a week, with something to see in every season! The Enid A. Haupt Garden is the only gated garden and opens daily from dawn to dusk. A walk around all of the gardens, at a leisurely pace, takes about 3 hours.