The celebration of trees starts at 9 am and is free to the public. Tree climbing for children will be the highlight of the morning. Children will grab a harness and helmet and be guided by Iowa Arborist Association members as they climb arboretum trees. A tree planting dedication along with other activities are planned for the morning. There will be a special appearance by Smokey the Bear. Everyone receives a free tree. Join us for a fun morning at the Arboretum.