Strong stems support large clusters of bright periwinkle blue flowers over light green foliage. Stems often have a strong maroon tint. Plant may run aggressively, but drier soils will slow it. Attractive to butterflies. Deer resistant. Long blooming.
Prefers full sun to light shade and moist to wet soils. Tolerant of coastal conditions, clay soil, and boggy situations. Tolerates drought once established, but will look better with supplemental moisture.