Blue Bloom

Amsonia 'String Theory'

String Theory Blue Star

Amsonia hubrichtii

Threadleaf Blue Star, Arkansas Blue Star

Baptisia australis

Blue False Indigo

Caryopteris × clandonensis 'Dark Knight'

Dark Knight Bluebeard

Caryopteris x clandonensis ‘Longwood Blue'

Longwood Blue Bluebeard

Clematis 'The President'

The President Clematis

Hibiscus syriacus 'Notwoodthree'

Blue Chiffon® Hibiscus

Hydrangea macrophylla 'Bailmer’

Endless Summer® The Original Hydrangea

Hydrangea macrophylla 'P11HM-11'

Endless Summer® Bloomstruck® Hydrangea

Hydrangea macrophylla 'Penny Mac'

Penny Mac Hydrangea

Hydrangea macrophylla 'PIIHM-I'

Endless Summer® Twist N Shout™ Hydrangea

Hydrangea macrophylla 'SMHMES14'

Let's Dance® Rhythmic Blue® Hydrangea

Hydrangea serrata 'MAKD'

Tiny Tuff Stuff™ Hydrangea

Lobelia siphilitica

Blue Cardinal Flower

Perovskia atriplicifolia 'CrazyBlue'

Crazy Blue Russian Sage

Perovskia atriplicifolia 'Little Spire'

Little Spire Russian Sage

Perovskia atriplicifolia

Russian Sage

Salvia nemorosa 'Blue Marvel'

Blue Marvel Meadow Sage

Amsonia 'Blue Ice'

Blue Ice Blue Star

Amsonia tabernaemontana 'Storm Cloud'

Storm Cloud Blue Star