THE CREDIT CARD PROCESSING ISSUE HAS BEEN RESOLVED AND THIS TOUR IS NOW SOLD OUT. Join the Spring Grove Horticulture Staff as they highlight the very best in Autumn Color in the arboretum on this walking tour.   Wear comfortable shoes.  The tour will begin just inside the main entrance off Spring Grove Avenue.   Reservations are required and space is limited.  Registration will open on September 21st at NOON. Your $5 donation will go to the Heritage Foundation to further efforts in education, preservation, and community outreach.