Fireworks, anyone?
I cut these for a Sunday lunch and it occurred to me the arrangement looked rather patriotic. Grass: Achnatherum calamagrostis, Echinops ritro ruthenicus, Agapanthus x ‘Summer Skies’ (light blue), Agapanthus x 'Black Pantha’ (dark blue), Aster novae-angliae, Centranthus rubber, Heuchera macrorhriza, Daucus carota.