Walks in the Garden at Barrington Hall.  Enjoy a guided walk while learning about the historic gardens featuring many century old shrubs and heirloom plants. . A short presentation will start the walk at 9:30a.m.  Topics include heirloom roses, growing herbs, wildflowers and pruning shrubs and trees.  Sign up is not required but is encouraged.  Free.  9:30-11am.  Barrington Hall, 535 Barrington Drive, Roswell.  More info:  770-640-3855 or www.barringtonhall-roswell.com.