The plant that I can't identify here is the one with the round flower/seed heads on stalks that are reminiscent of stonecrop.
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... but I though that the flower heads were too tight. On the other hand an identification as a cudweed would explain that lack of the basal rosette.
I am not sure what character we can rely on from these pictures, I though it had more of a a cudweed look and the ecology of Erodium better matches cudweed than Antennaria.
... that (if it was Antennaria) it was a garden escape. But on second thoughts I think that you've got a better chance of being right.
Thanks for the thoughts, I wasn't sure where to start looking with this one (and apologies for the poor photo!).
Lat/Lng: 52.62082, 1.32719
OS grid ref: TG253077