Plant Base Online (beta)
Caryopteris x clandonensis 'Grand Bleu'
© Deeproot Plant Base
common name: Blue spirea, Bluebeard
synonyms: Caryopteris x clandonensis 'Inoveris', Caryopteris x clandonensis 'Grand Blue'
growth rate: medium
growth habit: rounded
leaf colour: green
flower colour: blue
main season: Summer
dry soil, moist soil, sandy soil
preferred soil pH: any
minimum temp: -23°C
USDA zone: 6 to 10
Small shrub with intense deep blue flowers over a long period in summer. Deep green foliage which is aromatic when brushed against.
Needs sun and a well drained soil. In cold areas grow in a protected south facing position. Top-groth may be killed by severe frosts but will usually re-shoot from the base. Dislikes heavy, poorly drained soils.
Prune back to 15cm in early spring.
By soft-wood cuttings in early summer or semi-ripe cuttings in late summer.
Borders, suitable for containers
Attractive to insects.
Bred by Alain Cadic, INRA, France, 2007