Walkabout Theatre Company takes its mission to create location-specific theater into the great outdoors this summer, with a city-wide garden tour of “War Garden: An Experiment in Patriotic Agriculture, ” produced in conjunction with Neighborspace, “an urban land trust dedicated to preserving community-managed gardens in Chicago,” Led by director/co-creator Seth Bockely, Walkabout’s ensemble has tapped city history for subject matter, exploring the WWI war garden movement through the efforts of a ladies auxiliary organization who find themselves at odds with the antics of real-life Chicago shanty-town confidence man, George W. Streeter. But while the historical backdrop and community-activist ties sound ripe for a rich cultural exploration, the short performance itself (which runs approx. fifty minutes) is fairly silly and juvenile. Perhaps I was misled by the pre-show press and literature, which had me expecting a more thoughtful portrait of communities uniting in peril and “today’s urban agricultural revival,” but I was disappointed by the broadly cartoonish characters and performances—overblown and uncomfortably heavy on the kind of demonstrative mugging one would expect from a children’s sketch-comedy show. (Valerie Jean Johnson)