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botanical name:
Caryopteris x clandonensis 'Longwood Blue'
Caryopteris x clandonensis 'Longwood Blue' © Deeproot Plant Base
common name:  Blue Spirea, Bluebeard
family:  Verbenaceae
characteristics: shrub, scented/aromatic
height: 1.20m
width: 1.20m
growth rate: medium
growth habit: bushy
leaf colour: grey-green
flower colour: blue
main season: Summer
aspect: full sun
conditions: dry soil, moist soil, sandy soil
preferred soil pH: any
minimum temp: -23°C
USDA zone: 5 to 9
Small deciduous shrub with aromatic silvery grey-green foliage. Freely produced blue flowers in late summer and early autumn.

Needs sun and a well drained soil. In cold areas grow in a protected south facing position. Top growth may be killed by winter frosts, but will normally re-grow from the base.
Prune back to 15cm in early spring.

By soft-wood cuttings in early summer or semi-ripe cuttings in late summer.

Good for late season colour

other notes:
Selected at Longwood Gardens, Pennsylvania, USA

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