Nierembergia rivularis
Galtonia candicans
Virginia bluebell
Clematis versicolor
whitecup
Muscari neglectum
Myosotis scorpiodes
blueweed
leather flower
viper's bugloss
Virginia cowslip
Echium vulgare
bluecurls
Mertensia virginica
common ageratum
common grape hyacinth
forget-me-not
Ageratum houstonianum
summer hyacinth
mouse ear
Nierembergia repens
blue thistle
Michaelmas daisy
blue-lilac
potato vine
thyme-leaved speedwell
browallia
bush violet
Lobelia siphilitica
heliophila
ageratum
bluish-lilac
painted nettle
Joseph's coat
great lobelia
Solanum jasmoides
Veronica serpyllifolia
New York aster
blue cardinal flower
Solenostemon blumei
cowherb
Aster novi-belgii
Coleus blumei
Solenostemon scutellarioides
heal-all
lavender
blue curls
genus Exacum
Exacum