A very frost-hardy, marginal water plant, it grows to 30 in
with an 18 in (45 cm) spread. Its tapered, heart-shaped leaves are
dark green and shiny.
It produces intense blue flowers in dense, terminal spikes.
Flowering colors: Blue
Cultivation: Easily grown, pickerel weed flourishes in almost any
climate, from cold to subtropical.
Plant it in full sun in up to 10 in (25 cm) of water.
Only the spent flower stems need pruning, to encourage successive
batches of flowers from spring to fall (autumn).
Propagate from seed or by division .