group of lavender blue flowers of michelmas daisy, eurybia x herveyi ‘twilight’ aster macrophyllus `twilight`

aster august autumn beautiful blossom blue border bright bunch color colorful daisies daisy delicate england english eurybia fall flora floral flower flowers freshness garden gardening green group growth herbaceous herveyi large lavender macrophyllus michelmas morning nature nobody ornamental outdoor petal plant pretty purple romantic season september soft summer sunlight twilight vibrant violet yellow