Joan Horwitt lecturing elementary school student at the Reevesland Learning Garden on Nov. 30, 2012. Students from Ashlawn Elementary School visit the garden about once a month. County officials try to determine how to develop historic Reevesland farmhouse and 2.4-acre plot in Arlington. Agriculture advocates want to see the farmhouse turned into a learning center, but county officials remained concerned over cost. Read more: http://patch.com/A-0yp5