Wanted: White masterwort

It would look lovely under the plum tree.

Wonderful, white, pincushion flowers with a collar of extra long, green tipped petals on wiry, branched stems above deeply divided, dark green leaves. This astrantia is thought to have originated in Margery Fish’s garden at East Lambrook in Somerset, and christened there and then. It is one of the best pale varieties, with large flowerheads and more deeply cut foliage. Like all astrantia, it can cope with a range of soils from alkaline to heavy, damp soil in dappled shade.
Astrantias have been cultivated in Britain since the 16th century and have numerous common names, such as melancholy gentleman, Hattie’s pincushion and the more well known masterwort.