On Saturday, the avant-garde duo Bluebrain held their final Boombox Walk at the U.S. Botanic Garden. Among the welcoming greenery and flowers, Ryan and Hays Holladay organized the group of participants, handing everyone who had RSVP’d their respective cassettes, CDs and MP3 files. On their signal, everyone pressed play and walked around the garden en masse, creating a huge, mobile orchestra.

Flickr user yospyn took this photo of a ladybug’s butt at the Meadowlark Botanical Gardens in Vienna, Va. The severe depth of field makes for some lovely bokeh that turns this nature photo into a bit of a dreamy landscape….

The United States Botanic Garden is a favorite summer destination, and the list of reasons to visit has gotten longer. In a recently opened exhibit, Celebrating America’s Public Gardens, the nation’s most important public gardens have sponsored mini-displays in two sections called Green Today, Growing Tomorrows (in the National Garden, at the Mall end of the grounds) and A Sense of Place (on the Conservatory Terrace, facing Capitol Hill). In the latter exhibit, each garden’s…