Blue

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  Aconitum
  'Newry Blue'

  MONKSHOOD

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  Aconitum
  'Bressingham Spire'

  MONKSHOOD

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  Aconitum
  'Spark's Variety'

  MONKSHOOD

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  Aconitum
  'Arendsii'

  MONKSHOOD

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  Agastache
  'Kudos Silver Blue'

  DWARF HUMMINGBIRD MINT

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  Agastache
  'Blue Fortune'

  HYSSOP

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  Agastache
  'Serpentine'
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  Agastache
  'Black Adder'

  HYSSOP

   

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  Agastache
  'Spicy'

  HYSSOP

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  Agave
  'J.C. Raulston'
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  Ajuga
  'Bronze Beauty'
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  Ajuga
  'Catlin's Giant'
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  Ajuga
  'Mahogany'
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  Ajuga
  'Burgundy Glow'
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  Ajuga
  'Chocolate Chip'
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  Ajuga
  'Frosted Jade'
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  Amsonia
  'Blue Ice'

  BLUESTAR

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  Amsonia hubrichtii

  BLUESTAR

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  Amsonia illustris

  BLUESTAR

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  Amsonia tabernaemontana

  BLUESTAR

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  Amsonia tabernaemontana
  'Short Stack'

  BLUE STAR

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  Amsonia tabernaemontana var. salicifolia

  WILLOW LEAF BLUESTAR

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  Anemone nemerosa
  'Royal Blue'

  WOOD ANEMONE

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  Aquilegia
  'Mellow Yellow'

  COLUMBINE

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  Aster cordifolius

  BLUE WOOD ASTER

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  Aster cordifolius
  'Avondale'

  BLUE WOOD ASTER

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  Aster dumosus
  'Wood's Blue'
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  Aster frikartii
  'Monch'
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  Aster linariifolius

  STIFF LEAFED ASTER

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  Aster macrophylla
  'Twilight'

  BIGLEAF ASTER

   

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  Aster novi-belgii

  NEW YORK ASTER

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  Aster novi-belgii
  'Bonny Blue'

  NEW YORK ASTER

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  Aster oblongifolius
  'Aroma'

  AROMATIC ASTER

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  Aster oblongifolius
  'October Skies'

  AROMATIC ASTER

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  Aster oblongifolius
  'Raydon's Favorite'

  AROMATIC ASTER

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  Aster spectabilis
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  Baptisia
  'Pixie Periwinkle'

  WILD INDIGO

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  Baptisia australis

  WILD INDIGO

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  Baptisia australis var. minor

  WILD INDIGO

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  Brunnera
  'Jack Frost'

  SIBERIAN BUGLOSS

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  Brunnera
  'Alchemy Silver'

  SILVER SIBERIAN BUGLOSS

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  Brunnera macrophylla

  SIBERIAN BUGLOSS

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  Buddleia
  'Ellen's Blue'

  BUTTERFLY BUSH

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  Calamintha
  'Marvelette Blue'

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  Calamintha
  'Compact Blue'

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• 

  Calamintha nepeta
  'Blue Cloud'

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• 

  Campanula
  'Dwarf Tornado'

  BELLFLOWER

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  Campanula carpatica
  'Graham's Giant'

  BELLFLOWER

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  Campanula garganica
  'Dickson's Gold'

  BELLFLOWER

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  Campanula portenschlagiana

  DALMATIAN BELLFLOWER

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  Campanula poscharskyana
  'Blue Waterfall'

  SERBIAN BELLFLOWER

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  Campanula poscharskyana

  BELLFLOWER

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  Caryopteris
  'White Surprise'

  BLUEBEARD

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  Caryopteris divaricata
  'Blue Butterflies'

  BLUEBEARD

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  Caryopteris divaricata
  'Snow Fairy'

  BLUEBEARD

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  Ceratostigma plumbaginoides

  PLUMBAGO

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  Clematis
  'Diana's Delight '

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  Clematis
  'Cezanne'

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  Clematis
  'H.F. Young'

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  Clematis
  'Lake Baikal'

   

   

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  Clematis
  'Mrs. Cholmondeley'

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  Clematis
  'Ramona'

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  Clematis
  'Roguchi'

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  Clematis
  'Little Blue'

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  Clematis
  'Mrs. Robert Brydon'

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  Clematis heracleifolia var. davidiana

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  Clematis viticella
  'Betty Corning'

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  Corydalis
  'Porcelain Blue'

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  Corydalis flexuosa
  'China Blue'

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  Delphinium exaltatum

  TALL LARKSPUR

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  Dracocephalum ruyschianum

  NORDIC DRAGONHEAD

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  Echinops
  'Platinum Blue'

  GLOBE THISTLE

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  Echinops ritro ssp. ruthenicus

  GLOBE THISTLE

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  Eryngium
  'Blue Glitter'

  SEA HOLLY

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  Eryngium
  'Big Blue'

  SEA HOLLY

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  Eryngium planum

  SEA HOLLY

   

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  Eupatorium coelestinum

  HARDY AGERATUM

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  Eupatorium coelestinum
  'Wayside'

  HARDY AGERATUM

   

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  Festuca glauca
  'Cool as Ice'

  BLUE FESCUE

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  Gentiana
  'True Blue'

  GENTIAN

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  Geranium
  'Azure Rush'

  HARDY GERANIUM

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  Hemerocallis
  'Entrapment'

  DAYLILY

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  Hydrangea
  'Revolution'

   

   

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  Hydrangea
  'Harmony'

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  Hyssopus
  'Dwarf Blue'

  HYSSOP

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  Iris cristata

  BLUE CRESTED IRIS

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  Iris cristata
  'Powder Blue Giant'

  BLUE CRESTED IRIS

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  Iris germanica
  'Feedback'

  BEARDED IRIS

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  Iris sibirica
  'Baby Sister'

  DWARF SIBERIAN IRIS

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  Iris versicolor

  BLUE FLAG

   

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  Iris x robusta
  'Gerald Darby'

  BLUE FLAG

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  Kalimeris
  'Blue Star'

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  Kalimeris integrifolia
  'Caritas'

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  Knautia
  'Melton Pastels'

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  Laurentia fluviatilis

  BLUE STAR CREEPER

   

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  Lavendula
  'Munstead'

  ENGLISH LAVENDER

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  Lavendula
  'Blue Scent '

  ENGLISH LAVENDER

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  Lavendula
  'Provence'

  LAVENDER

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  Lavendula
  'Big Time Blue'

  ENGLISH LAVENDER

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  Lavendula
  'Blue Spear'

  LAVENDER

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