I just took another picture to show size. It can not be english daisy due to the foliage, I can see that now. I have this plant, but it never looked as good as when I photographed it June. It was a dying reject from home depot no tag. I love saving dying plants. I will check the link. Maybe this picture is better for id, then the prettier one?
y'see a plant can be anything when viewed from the wrong angle. until we/I saw the leaves and the actual plant from a low angle and not a birdseye view it could have been any Asteraceae/Composite/daisy.
A terrible lose, but the plant died. It developed an odd problem in that the stems closer to the base became very mushy over the winter, then they began to break off. I don't know it was a fungal diesase or if it died of old age.
I saw a similar plant but then I did not want to try it until I know why this one died.
Click the image for an enlarged view.
mark Antrim, Northern Ire United Kingdom (Zone 8b)