There is an evergreen in front of my apartment. In just a few days, many of its branches have turned yellow. Last week it still looked fine. Is this expected, or is the tree sick? Is there anything I can do to help it?
I have no experience with trees at all. This tree is not technically my responsibility as it belongs to the apartment block. But I am quite worried about it and I would like to do everything I can to prevent it from dying.