Centaurea cyanus
bluet
cornflower
Caragana arborescens
bluebottle
potato vine
silvervine
thyme-leaved speedwell
silver vine
Veronica serpyllifolia
blue curls
Actinidia polygama
Solanum jasmoides
ageratum
Linaria canadensis
butterfly bush
blue lotus
buddleia
Oregon holly grape
mountain grape
blue toadflax
old-field toadflax
holly-leaves barberry
hollygrape
Mahonia aquifolium
Nymphaea stellata
Benzoin odoriferum
painted nettle
Solenostemon scutellarioides
columnea
African tulip
Schinus molle
spice bush
Agapanthus africanus
Benjamin bush
Humulus japonicus
spicebush
Lindera benzoin
Baptisia australis
Coleus blumei
African lily
molle
American spicebush
Joseph's coat
blue false indigo
Solenostemon blumei
Peruvian mastic tree
pepper tree
Japanese hop