The Hershey Horticulture Society will host a program at 1 p.m. on Monday, Sept. 12, at the Mount Gretna Hall of Philosophy, 22 Gettysburg Ave., Mount Gretna. Susan Hostetter will present "Old Mount Gretna as Seen Through the Camera Lens."

Guests are welcome to attend. There is no charge, and registration is not needed. Visit http://www.hersheyhorticulture.com for details.