Hardiness Zone: 4-9
Height: 2-3 ft.
Spread: 1.5 – 2.5 ft.
Bloom Time: May- July
Bloom Color: Deep blue to rose blue
Sun: Full Sun to part shade
Soil: Prefers moist, acidic, sandy soil but adapts to other soil types
Type: Herbaceous perennial
Benefit: Attracts birds and hummingbirds will grow under black walnut tree, it is also an interesting and long-blooming perennial for the border, naturalized area, meadow or open spaces of the woodland garden.