Hardiness Zone: 3-9

Height: 3-4 ft.

Spread: 3-4 ft.

Bloom Time: May-June

Bloom Color: Indigo blue

Sun: Full sun to part shade

Soil: Adapts to a variety of soil

Type: Herbaceous perennial

Benefit: Attracts butterflies, great for borders, cottage gardens prairies, meadows and native plant gardens, is very effective in  naturalized settings, best as a specimen or in small groups.