I live in Victoria, British Columbia, the mildest area of Canada in winter, and also coolish summers. The climate is similar to the south of the South Island. Having just returned from a delightful holiday in NZ, I'm very interested in trying to grow southern rata here from seed. In order to maximize the likelihood of survival, I would prefer seeds from a colder region and/or higher altitude. I'm uncertain if I have missed the seed harvest window for last year's flowering, but if any Kiwi gardeners can help me, I'd be very grateful. We have no possums here.