Description

A clump-forming habit with brilliant red flower spires set against green and purple-bronze colored foliage. Each individual spike of flowers opens from bottom to top and stays in bloom for several weeks. Although relatively common, over picking this handsome wildflower has resulted in its scarcity in some areas. Since most insects find it difficult to navigate the long tubular flowers, this scarlet beauty depends on hummingbirds, which feed on the nectar, for pollination. As well as hummingbirds, it attracts butterflies and bees (our large and determined bumbles will pierce the corolla to obtain the nectar). Cardinal flowers needs constant moisture – soils should never be allowed to dry out. Tolerates brief flooding. Light mulch will prevent root heaving and help retain soil moisture. Although individual plants are short-lived, L. cardinalis will maintain its presence in a garden in optimum conditions by self-seeding. Seeds need light to germinate, so be sure not to cover the growing area with heavy mulch. Do not cut plants back in the fall. May be deadheaded to encourage rebloom, but make sure to leave some seedheads for self-seeding. May be pinched back in early summer if shorter, bushier plants are desired. ‘Black Truffle’ was selected for its nearly black foliage and bushy, upright habit. The foliage emerges nearly black then turns shiny maroon in the heat of summer, and stays that way until the bright red flowers appear. Height: 3-4 ft. Spread: 2-3 ft. Family: Campanulaceae Bloom time: July to September Sun: full sun to part shade Water: medium to wet Rain garden According to Rutgers University, Lobelia are “seldom severely damaged” by deer. photo credit: North Creek Nurseries