Blue Bloom

Amsonia 'String Theory'

String Theory Blue Star

Amsonia hubrichtii

Threadleaf Blue Star, Arkansas Blue Star

Baptisia australis

Blue False Indigo

Buddleia davidii 'SMNBDBT' PP#28,794

Pugster Blue® Dwarf Butterfly Bush

Buddleja davidii 'Nanho Blue'

Nanho Blue Butterfly Bush

Caryopteris × clandonensis 'Dark Knight'

Dark Knight Bluebeard

Caryopteris x clandonensis ‘Longwood Blue'

Longwood Blue Bluebeard

Ceratostigma plumbaginoides

Hardy Plumbago, Leadwort

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 serrata 'MAKD'

Tiny Tuff Stuff™ Hydrangea

Lobelia siphilitica

Blue Cardinal Flower

Nepeta faassenii 'Cat's Meow'

Cat's Meow Catmint

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