I was given an indoor Norfolk Island Pine recently (3 trunks, tallest about 5 ft), and I am keeping in outdoors. I'd really like to know what this plant needs to live outdoors in a Vancouver climate. How much sun do they need? I can give it eastern and 1/2 southern exposure, or just eastern, or mostly shade. Which is best? Can these plants thrive outdoors in Vancouver? Can I separate the trunks? I'm a little worried about it since some branches are yellowing a bit at the tips.