Perennial

Amsonia 'String Theory'

String Theory Blue Star

Amsonia hubrichtii

Threadleaf Blue Star, Arkansas Blue Star

Iris versicolor

Northern Blue Flag Iris, Harlequin Blue Flag

Isotoma fluviatilis

Blue Star Creeper

Salvia x sylvestris 'Mainacht’

May Night Wood Sage

Veronica peduncularis 'Georgia Blue'

Georgia Blue Speedwell