As I walked through the allotment on a bright, late summer morning, I noticed some flowers stuck against the inside of a polytunnel. I took a few phone shots and liked the results, so went back with the "big" camera again and again in different conditions.
As it turned out they are in the main dahlias, because there are a couple of specialist growers on the site. This is some of what I captured from 2 or 3 of the tunnels; it's a mix of colour and monochrome.