On this President’s Day edition of We Dig Plants, hosts Carmen Devito and Alice Marcus Krieg examine the roots of America’s horticultural heritage through the vision of its first families. From Washington to Lincoln, right up to the present day, American presidents and first ladies have had an undeniable influence on our nation’s horticulture. Guest Robin Selfridge joins in to discuss how this horticultural heritage has been documented in our coins and stamps. Finally, we learn a bit more about the current presidential candidates by analyzing their respective state flowers.