The School of Natural Resource’s spring documentary series will screen “The Trees” at 7 p.m. April 26 in Hardin Hall Auditorium.

The film is about growing a forest for the 9/11 Memorial site. The event is free and open to the public. Doors open at 6:15 p.m.

Filmed over the course of five years, “The Trees” documents the journey of more than 400 swamp white oaks from a temporary home in New Jersey to the World Trade Center Memorial Plaza.

Through the stories of those who design, plan and construct the memorial, “The Trees” explores the evolution of one of the world’s most innovative green-roof gardens.

The film shows public reaction to this lasting, yet ever-changing memorial to the victims of the September 11 attacks. A visual meditation on seasonal changes and the possibility of rebirth, “The Trees” asks how we memorialize and remember.

Guests are invited to stay after for a discussion of the documentary with a panel of experts.

Snacks will be for sale to support student clubs. Parking will be provided in Hardin Hall parking lot except for meters and reserved facilities spaces.