Louisville http://wkyufm.org en Arboretum and Research Forest in Kentucky Looking into Urban Gardens http://wkyufm.org/post/arboretum-and-research-forest-kentucky-looking-urban-gardens <p>Bernheim Arboretum and Research Forest is conducting experiments to determine which grasses, flowers and herbs work best when planted on rooftops. The Courier-Journal reports that the experiment called "Gardens in the Sky" involves three garden beds and two bee hives on the roof of the American Life Building in downtown Louisville. Mon, 29 Oct 2012 14:05:40 +0000 Kevin Willis 21411 at http://wkyufm.org Arboretum and Research Forest in Kentucky Looking into Urban Gardens