Clematis stans
Attractive pale blue tubular flowers borne in clusters.
Clematis x aromatica
Beautiful lemon scented bluish-violet flowers produced in clusters.
Clematis x cylindrica
Pretty bell shaped flowers with recurved petals
Clematis x durandii
A semi-climbing perennial with saucer-shaped, single, indigo-blue flowers, with distinctive golden yellow anthers.
Clinopodium vulgare
An upright perennial with hairy leaves and whorles of pale purple to rose-purple flowers.
Codonopsis clematidea
A twining herbaceous perennial climber with branching stems of grey-green leaves. Charming, nodding, bell-shaped, pale blue flowers with markings inside.
Codonopsis convolvulacea
A twining herbaceous perennial climber with, mid-green leaves. Charming, nodding, bell-shaped, violet-blue flowers.
Codonopsis forrestii
A scrambling perennial with mid-green leaves. Charming, nodding, bell-shaped, lavender-blue flowers with red basal spot within in summer.
Codonopsis ovata
A herbaceous perennial with, hairy, mid-green leaves, mostly basal. Charming, tubular bell-shaped, greenish blue flowers with dark blue markings inside.
Codonopsis tangshen
A twining herbaceous perennial climber with fleshy, mid-green leaves. Charming, bell-shaped, yellow to olive-green flowers with purple veins and spots inside.
Codonopsis vinciflora
A twining herbaceous perennial climber with, mid-green leaves, blue beneath. Charming, bell-shaped, blue to bluish lilac flowers.
Commelina dianthifolia
A small perennial with narrow green leaves and deep blue flowers.