On two hundred acres in the Hudson Valley, Amy Goldman grows heirloom fruits and vegetables--an orchard full of apples, pears, and peaches; plots of squash, melons, cabbages, peppers, tomatoes, eggplants, and beets. Today, she joins Alice and Carmen for a brand new episode of We Dig Plants.  Talking her new book, "Heirloom Harvest: Modern Daguerreotypes of Historic Garden Treasures," she shares her passion for preserving agricultural heritage, beautiful and unique heirlooms that truly are organic treasures.  Over fifteen years, the acclaimed photographer Jerry Spagnoli visited Amy's gardens to preserve these cherished varieties in another way--with the historical daguerreotype process, producing ethereal images with a silvery, luminous depth and a timeless beauty, underscoring the historical continuity and value of knobby gourds, carrots pulled from the soil, and fruit picked fresh from the tree.