Autumn at the Arboretum is a weekend-long celebration with free admission, entertainment, and programming. Visitors can participate in several self-guided activities, including a smartphone tour highlighting fall colors and different points of interest found throughout the arboretum’s 155-acres of paths, trails, and gardens. A self-guided scavenger hunt, themed for fall, will encourage nature exploration. Saturday’s free presentation, Faded Glory: The Autumn Garden, offered by Author and Director of Reiman Gardens, Ed Lyon, will educate those interested in defining and creating a spectacular fall…