William Cullina

F. Otto Haas Executive Director of the University of Pennsylvania’s Morris Arboretum

William Cullina is the F. Otto Haas Executive Director of the University of Pennsylvania’s Morris Arboretum. Under his leadership, the Arboretum is implementing a new five-year Strategic Plan, which includes finalizing and starting the implementation of the organization's new 10-year Master Plan. 

Cullina has extensive experience in public garden leadership, fundraising, education, and horticulture, and is a well-known author and lecturer.  He is a recognized authority on North American native plants and has won several awards, including the Scott Medal and the Award of Excellence from Garden Clubs of America.