cornflower
indigo
heath violet
Viola canina
dog violet
spring squill
Scilla verna
sea onion
Polymonium caeruleum van-bruntiae
Polemonium van-bruntiae
charity
Jacob's ladder
Polemonium caeruleum
blue-eyed grass
Greek valerian
gentian blue
Catananche caerulea
berry blue
blue succory
cupid's dart
bluish-violet
Gentiana detonsa
blue-violet
Gentianopsis detonsa
forget-me-not
delphinium
bluebottle
Oxford blue
mouse ear
ultramarine
Mertensia virginica
tournsol
Myosotis scorpiodes
Parma violet
eggshell blue
Virginia bluebell
woad
blue-flowered
Virginia cowslip
Milori blue
royal blue
blurple
Japanese wistaria
Wisteria floribunda
Copenhagen blue
Nile blue
baby blue
blue toadflax
shamrock pea
steel blue