HomeGrown goes Valentine’s Day historic this week with a visit to the Abraham Lincoln Presidential Library and Museum in Springfield, Illinois, and a conversation with Larry Griffith, curator of plants at Colonial Williamsburg in Virginia. Tour guide Barbara Archer leads a trip through the Lincoln museum, talking about what Abe might have had for dinner. Griffith details the plants most likely to be found – and eaten – in Colonial Virginia, as well as those that signified love. Downloadable MP3Find out more: