Celebration held at the Georgia International Horse Park, at the Big Haynes Creek Nature Center, 10am, Tree planting and care advice from the Rockdale County Master Gardeners, free tree saplings from the Georgia Forestry Commission (while supplies last).  Look around for Treasures in the Trees as part of the celebration of the upcoming Conyers Cherry Blossom Festival, to turn in for a free gift. For more information, www.georgiahorsepark.com