Natives

Iris versicolor

Purple-blue blooms. Tolerates standing water. Native. USDA 3-9

Baptisia australis

Blue Blooms. Shruby. Tolerates deer, drought, & poor soils. USDA 3-9

Amsonia hubrechtii

Long-lived plant with clusters of blue flowers in May and June and golden fall color on an upright, bushy plant. USDA 5-8