Green Leaf

Iris versicolor

Northern Blue Flag Iris, Harlequin Blue Flag

Nepeta racemosa 'Walker's Low'

Walker's Low Catmint

Nepeta x faassenii 'Purrsian Blue'

Purrsian Blue Catmint

Perovskia atriplicifolia 'Blue Jean Baby'

Blue Jean Baby Russian Sage

Perovskia atriplicifolia 'Little Spire'

Little Spire Russian Sage

Perovskia atriplicifolia

Russian Sage

Vinca minor

Periwinkle, Creeping Myrtle

Amsonia 'String Theory'

String Theory Blue Star

Amsonia x 'Butterscotch'

Butterscotch Blue Star

Anemone 'Macane001'

Wild Swan™ Anemone

Anemone 'Macane004'

Dreaming Swan™ Anemone

Aquilegia 'Biedermeier'

Beidermeier Columbine

Aster cordifolius

Blue Wood Aster

Aster laevis

Smooth Aster

Aster tataricus 'Jindai'

Jindai Tatarian Aster

Baptisia australis

Blue False Indigo

Brunnera macrophylla 'Silver Heart'

Silver Heart Siberian Bugloss

Buddleia 'Blue Chip Jr.'

Lo & Behold® Blue Chip Jr. Butterfly Bush

Calamintha nepeta 'Blue Cloud'

Blue Cloud Catmint

Caryopteris x clandonensis ‘Blue Mist'

Blue Mist Bluebeard