What is this?
No interactions present.
The flowers look like those of Wood Speedwell (Veronica montana), but we really need to see the leaves and stem to make a proper determination. If the out of focus little round leaves belong to it then it is probably V. filiformis.
montana has pinkish flowers and flower sin racemes rather than solitary; this is filiformis
Lat/Lng: 51.7538, -1.2984
OS grid ref: SP485063