This grower is sure of this plant identification.
There may have been a little cross pollination with these plants. Some are flowering with a bit of pink - from Astrantia major 'Roma'
Astrantia major ‘Shaggy’ (Masterwort). Also known as 'Margery Fish'. It has very long bracts with prominent green tips, and deeply cut leaves.
They will prefer to have soil that does not dry out.
Naturaliser, cutting bed, dried arrangements, borders, under shrubs. Summer interest.
Italics = data drawn from parent genus or speciesView Full Plant Finder Record