Plan now - advance registration required: Celebrate Arbor Day on this day of fun! Keynote address by Director of Operations Alan Branhagen, speaking on the “Gems of the Arboretum’s Tree Collections” [Virtual presentation] - live at 10 am. Will be uploaded to the website later. Then, head to the Visitor Center for a free tree give away, craft projects and coloring pages for the kids (while supplies last). Take the self guided tree tour, search for “Arb the Gnome” and enjoy the beautiful spring day.