Mary Margaret Pipkin with her painting, “Peonies from the Garden.” In celebration of Virginia Garden Month, the Athenaeum of Old Town Alexandria will be exhibiting the large scale watercolors of Virginia artist Mary Margaret Pipkin, through May 26. Free. At the Athenaeum, 201 Prince St. Pipkin also shares recent work from a new series of landscapes exploring the mountains and forests of Virginia’s Blue Ridge. Visit www.mmpipkin.com.