Caryopteris divaricata
A herbaceous caryopteris valued for its late-summer blue flowers and upright habit. Caryopteris divaricata comes into flower as the season turns, adding colour and structure when earlier plantings are beginning to fade. Best grown in full sun with good drainage, it is cut back in spring as new growth emerges and integrates easily into mixed borders.
Growing Conditions
Light: full sun
Moisture: average
Soil: well-drained garden soils
Hardiness zone: 5
Maintenance: low
Size & Habit
Height (cm): 120
Spread (cm): 80
Habit: upright clump
Seasonal Interest
Flowering period: Aug–Sept
Seasonal interest: late summer flowering
Foliage: green
Flower: blue
Ecology & Notes
Wildlife value: pollinators
Deer/Rabbit resistance: moderate
Habitat: perennial borders; mixed plantings; late-season interest
Features: upright habit; late-season flowering; aromatic foliage; clear blue flowers
Notes: a herbaceous caryopteris flowering later than most perennials; foliage is aromatic when brushed; cut back in spring as new growth begins; sometimes listed under the older name Caryopteris divaricatus