False Indigo (Baptisia australis) is a big perennial thats tough as nails, false indigo kicks off summer with spires of pure blue (cultivars come in a variety of other colors). Its rounded form makes a great contrast to the verticality of prairie grasses.
Baptisa-Also called false indigo for the rich blue shade of its flowers, this hardy perennial fills the spring garden with elegant spires of pealike blooms. It withstands drought -- and deer, rabbits, and other critters leave it alone.
Low-maintenance Perennials (MO) - Baptisia australis blue false indigo Herbaceous perennial I love the fullness of this plant. It looks like a shrub. The dried seedpods that turn black are worth waiting for. Plant takes a few years to fill out.
Blue wild indigo, blue false indigo. Baptisia australis [as Podalyria australis. Choix des plus belles fleurs -et des plus beaux fruits par P.J. Redouté. (1833) | by Swallowtail Garden Seeds