A deep border around the dovecote in the walled Round Garden is full of grasses and late season perennials including Rudbeckia fulgida var. sullivantii 'Goldsturm', Salvia involucrata 'Hadspen', Aster × frikartii 'Mönch' and Hakonechloa macra 'Aureola' at Llanover Gardens, Monmouthshire in September