Blue Bloom

Ajuga reptans 'Bronze Beauty'

Bronze Beauty Bugleweed

Ajuga reptans 'Burgundy Glow'

Burgundy Glow Bugleweed

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

Aster oblongifolius 'Raydon's Favorite'

Raydon's Favorite Aromatic Aster

Baptisia 'Blueberry Sundae'

Decadence® Blueberry Sundae False Indigo

Brunnera macrophylla ‘Jack of Diamonds’

Jack of Diamonds Heartleaf Brunnera

Caryopteris × clandonensis 'Dark Knight'

Dark Knight Bluebeard

Caryopteris x clandonensis ‘Longwood Blue'

Longwood Blue Bluebeard

Ceratostigma plumbaginoides

Hardy Plumbago, Leadwort

Hibiscus syriacus 'Notwoodthree'

Blue Chiffon® Hibiscus

Hydrangea macrophylla 'Blushing Bride'

Endless Summer® Blushing Bride® Hydrangea

Hydrangea macrophylla 'P11HM-11'

Endless Summer® Bloomstruck® Hydrangea

Hydrangea serrata 'MAKD'

Tiny Tuff Stuff™ Hydrangea

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