Planted en masse in a border a few feet wide and 20 yards longs.
No interactions present.
I thought I recognised it as a Brachyglottis but was overwhelmed by the number of cultivated types that it could be, given that its planted in a border.
I think Brachyglottis sp. is all I can add to it for now. :)
...is the commonly planted variety in gardens, cheap and cheerful! But I agree that it could be a different cultivar, Sunshine is just the most likely.
Lat/Lng: 51.2052, -2.6536
OS grid ref: ST544453
In a border along the edge of a car park in the middle of town.