Best known for its vast collection of azaleas, (a popular porch-flower), this 446-acre (180-hectare) garden park has much else to offer. Fountains, pools and open space separate a series of focused gardens at the United States National Arboretum. The National Bonsai Collection, a gift from Japan, is a fascinating exhibit of tiny trees. Other notable sections are the aquatic garden (filled with lotuses of many varieties) and the National Herb Garden.
The gorgeous United States Botanic Garden presents botanical variety, from the desert to the tropics, along a series of calm and gently meandering paths. A particular waterfall and garden display the flora of the dinosaur age. Seasonal displays include Christmas greens and poinsettias in December and January, chrysanthemums in autumn, and blooming flowers at Easter. Additionally, within the beautiful expanse of the United States Botanic Garden (USBG), the National Garden was inaugurated in October 2006 and includes the carefully designed Butterfly Garden.