A line of Buxus x 'Green Velvet' crosses over a line of Chasmanthium latifolium. Geranium x 'Rozanne,' Liatris spicata 'Kobold,' Salvia x superba 'May Night', and Agastache x 'Blue Fortune' pick up on the blue tones of the slate chip and beach pebbles. Coreopsis x 'Full Moon' and Physostegia virginiana 'Miss Manners' add contrasting color. Westhauser Photography