Astrantia major ‘Star of Fire’ – This Masterwort is an herbaceous perennial with clusters of burgundy-red flowers (or bracts) held on tall purple-tinted stems from June to August. These are nicely contrasted by the deep green serrated palmate foliage which forms a basal mound. Prefers open shade, although it tolerates full sun in coastal BC. Grows 26-30″ high by 18-20″ wide. Zone 4.
Cosmos atrosanguineus – The deep burgundy-red single blooms (from June to September if deadheaded) of Chocolate Cosmos have a definite cocoa scent on warm days. However, it is a bit tender and is best overwintered by lifting the tubers in fall and storing like a dahlia. Looks beautiful in combination with Japanese Blood Grass. Grows 18-30″ high by 12″ wide. Hardy to zone 8.
Lysimachia atropurpurea ‘Beaujolais‘ – An often short lived perennial with spectacular curved terminal spikes (somewhat similar to Gooseneck Lysimachia) of dark purple to burgundy-red flowers (from May to September) that make good cut flowers and attract butterflies. These are nicely contrasted by greyish-green foliage. Grows 20-30″ high by 12-18″ wide. Hardy to zone 4.
Scabiosa atropurpurea ‘Chile Black’- This Pincushion Flower is a native of southern Europe and is a half-hardy annual that occasionally overwinters. It bears deep burgundy-black pincushion blooms (from July to August) with contrasting pale lavender flecks. It requires good drainage and makes a good cut flower. Deadhead to prolong blooming. Grows 24″ high by 12″.
Acanthus hungaricus (syn. A. balcanicus, A.longifolius) – This species of Bear’s Breeches produces tall spires (up to 28″) of white to light pink flowers (from July to August) that are nicely capped by dark burgundy bracts. They are borne over a basal mound of thistle-like olive green leaves. Makes a good cut flower. Grows 3-4′ high by 2-3′ wide. Hardy to zone 6 (zone 5 with a mulch).