Tie herbs together with kitchen twine to form a bundle.Combine all ingredients in a slow cooker.Cook on high for 5-6 hours, until beans are tender.Remove herb bundle and ham bone from slow cooker.Allow ham bone to sit until cool enough to handle. Remove meat from bone and chop into bite size pieces.While ham bone is cooling, puree the soup with an immersion blender, just enough to thicken. You still want the soup to be chunky.Alternatively, remove about 3 cups of the soup and puree in a blender and then return to the soup.