Aristotelia is a genus of five Southern Hemisphere shrub and tree species: 2 in New Zealand; 2 in Australia; 1 in Chile and Argentina. www.arthurleej.com/p-o-m-Sep06.html
The closest I've got to growing this is that I had cuttings from a plant in Southern England a few years back, but they didn't take. Probably wouldn't be hardy here anyway...