Mixed fountain grasses plus pee gee hydrangea, white echinacea ("White Swan"), plus possibly some oak leaf or Annabelle, plus possibly low white carpet rose. Maybe add Icicle White Veronica or similar. Do Russian sage and grasses near steps.
gardeninglovers: “ Olympic Gardens Europe by Sarah Price. Swathes of Deschampsia and Molinia grasses are interspersed with perennials such as Sanguisorba officinalis, Lythrum virgatum and Succisa pratensis.