Grass & Flower Combinations

I have planted Carex ‘Evergold’ in one of the small, square beds set into the gravel and I think flowers would be interesting standing up above the grass. This is the ‘hot colours’ part of the garden and so I think quite a dramatic combination could work well: Astrantia, Sanguisorba, or a purple Sedum.

Carex 'Evergold'
Carex ‘Evergold’