Tony Maniezzo is the horticulturist at UBC BG who tends the Food Garden. He's responsible for tending these espaliered apple trees, a display that is one of the highlights for many visitors to the garden. As noted in that link, espalier is a style of training fruit trees into compact shapes – a very valuable technique in small urban gardens. Tony has an upcoming course on how to espalier fruit trees on June 15, but he is also teaching a different course this week, “Vegetable Gardens for Beginners”.

I should note that I've attempted to photograph these espaliered fruit trees many, many times and this is the first time I've been satisfied with the attempt, mostly because of the heavy fog masking the background.