I could be wrong, I'm on the wrong coast and I've been away from all these things for so long but I think that you're likely seeing malus in bloom - apple and apple family, crab apples and whatnot. I don't remember a lot of plums in Victoria. I'm cool with being wrong.

PS - my boss quit. His boss encouraged me to apply. Posting here
http://american.edu/hr/ft_staff_main_frm.html
click on Date Posted to show most recent and then click on manager, help desk. Exciting times.