All The Perennials Your Garden Needs

 Blue Hills Salvia

Salvia nemorosa 'Blauhugel'

 Blue Oat Grass

Helictotrichon sempervirens

 Blue Purple Verbena Tapestry

Verbena 'Tapestry Light Pink'

 Blue Purple Verbena pedula Superbena

Verbena pedula Superbena 'Blue Purple'

 Blue River II Hibiscus

Hibiscus moscheutos

 Blue Streak Veronica

Veronica gentianoides 'Blue Streak'

 Blue Verbena Babylon

Verbena Babylon 'Babylon Blue'

 Blue Verbena Patio Temari

Verbena TemariT Verbena 'Patio Blue'

 Blue Violet Verbena Tapien

Verbena hybrid Tapien Blue Violet

 Blue Waterfall Bellflower

Campanula poscharskyana 'Blue Waterfall'

 Blushing Maidens Dianthus

Dianthus Hybrids

 Bowl of Cherries Bellflower

Campanula punctata 'Bowl of Cherries'

 Bressingham Purple Jacobs Ladder

Polemonium 'Bressingham Purple'

 Bressingham Ruby Bergenia

Bergenia 'Bressingham Ruby'

 Bridal Veil Astilbe

Astilbe arendsii

 Bright Edge Yucca

Yucca filamentosa 'Bright Edge'

 Bright Pink Verbena Temari

Verbena 'Temari Bright Pink'

 Brise dAnjou Jacobs Ladder

Polemonium caeruleum 'Brise d'Anjou'

 Brit Marie Ligularia

Ligularia 'Britt-Marie Crawford'

 Bronze Beauty Ajuga

Ajuga reptans

 Brookside Geranium

Geranium 'Brookside'

 Burgandy Verbena pedula Superbena

Verbena pedula Superbena 'Burgandy'

 Burgunder Gaillardia

Gaillardia 'Burgundy'

 Burgundy Bliss Salvia

Salvia lyrata 'Burgundy Bliss'

 Burgundy Glow Ajuga

Ajuga reptans

 Burnished Bronze Heucherella

Heucherella 'Burnished Bronze'

 Butter and Sugar Iris

Iris siberica 'Butter and Sugar'

 Butterfly Blue Delphium

Delphinium grandiflora

 Butterfly Blue Scabiosa

Scabiosa columbaria 'Butterfly Blue'

 Caesars Brother Iris

Iris siberica 'Caesar's Brother'

 Cancun (Asiatic Lily) Lily

Lilium asiatic 'Cancun'

 Caradonna Salvia

Salvia nemorosa

 Cardinal Columbine

Aquilegia 'Cardinal'

 Carnaby Clematis

Clematis 'Carnaby'

 Carpet Blue Verbena Babylon

Verbena Babylon 'Carpet Blue'

 Casa Blanca (Oriental Lily) Lily

Lilium 'Casa Blance'

 Cathrine Woodbury Daylily

Hemerocallis 'Catherine Woodbury'

 Catlins Giant Ajuga

Ajuga reptans

 Champagne Elegance Iris

Iris germanica 'Champagne Elegance'

 Chater's Red Hollyhock

Alcea rosea 'Chater's Red'