common hyacinth
Hyacinthus orientalis
lavender
valerian
gaillardia
genus Veronica
Wisteria floribunda
royal jasmine
Japanese wistaria
bluish-lilac
blue-lilac
Strelitzia reginae
Centaurea cyanus
mouse ear
bluet
Felicia bergeriana
cornflower
Myosotis scorpiodes
bluebottle
forget-me-not
kingfisher daisy
bird of paradise
bachelor's button
cupid's dart
Campanula medium
Aster novi-belgii
Catananche caerulea
cup and saucer
New York aster
Canterbury bell
blue succory
Michaelmas daisy
common ageratum
Lathyrus splendens
tongueflower
pride of California
Ageratum houstonianum
tongue-flower
Polymonium caeruleum van-bruntiae
charity
Polemonium van-bruntiae
Polemonium caeruleum
Greek valerian
Jacob's ladder
baby blue-eyes
Weigela florida
Swan River daisy
Nemophila menziesii
cassie
blue-eyed Mary