Zone 8

Amsonia 'Blue Ice'

Blue Ice Blue Star

Amsonia hubrichtii

Threadleaf Blue Star, Arkansas Blue Star

Amsonia tabernaemontana 'Storm Cloud'

Storm Cloud Blue Star

Aster dumosus 'Woods Blue'

Woods Blue Aster

Aster oblongifolium 'October Skies'

October Skies Aromatic Aster

Baptisia 'Blueberry Sundae'

Decadence® Blueberry Sundae False Indigo

Caryopteris x clandonensis ‘Longwood Blue'

Longwood Blue Bluebeard

Hydrangea serrata 'MAKD'

Tiny Tuff Stuff™ Hydrangea

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

Phlox subulata 'Emerald Blue'

Emerald Blue Creeping Phlox

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 tataricus 'Jindai'

Jindai Tatarian Aster