The essential purpose of the Roselawn Centre is to act as a cultural hub for the development and enhancement of the Arts, in the broadest possible sense. The City of Port Colborne organizes and offers a year-round program of activities at Roselawn in the visual arts, theatre, music, a varied speakers program, publishing and youth activities. The Centre is also available for social events, catered banquets and business meetings.

The Friends of Roselawn Centre currently organizes and host three annual events — Harold Moseby Day, a Christmas Market, and An Evening at Roselawn: Juried Silent Art Auction.