Deciduous

Amsonia 'Blue Ice'

Blue Ice Blue Star

Amsonia hubrichtii

Threadleaf Blue Star, Arkansas Blue Star

Amsonia tabernaemontana 'Storm Cloud'

Storm Cloud Blue Star

Hibiscus syriacus 'Notwoodthree'

Blue Chiffon® Hibiscus

Hydrangea macrophylla 'Blushing Bride'

Endless Summer® Blushing Bride® Hydrangea

Hydrangea macrophylla 'P11HM-11'

Endless Summer® Bloomstruck® Hydrangea

Hydrangea macrophylla 'SMHMES14'

Let's Dance® Rhythmic Blue® Hydrangea

Hydrangea serrata 'MAKD'

Tiny Tuff Stuff™ Hydrangea

Amsonia 'String Theory'

String Theory Blue Star

Brunnera macrophylla 'Sea Heart'

Sea Heart Siberian Bugloss

Brunnera macrophylla 'Silver Heart'

Silver Heart Siberian Bugloss

Clematis 'Ramona'

Ramona Clematis

Clematis 'The President'

The President Clematis

Hydrangea macrophylla 'Ramars'

Cityline® Mars Hydrangea

Iris sibirica 'Royal Blue'

Royal Blue Siberian Iris

Vitex agnus-castus 'SMVACBD'

Blue Diddley® Chaste Tree