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Ceratostigma plumbaginoides (photo courtesy of Bailey Nurseries, Inc.)
Ceratostigma plumbaginoides (photo courtesy of Bailey Nurseries, Inc.)

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Zone
Zones 4-9, 14-24, 26, 28-34, 39
Full SunPartial Sun
Full, Partial
Regular Water
Moderate

Ceratostigma willmottianum

Chinese Plumbago
Plumbaginaceae
Deciduous, Shrubs

CERATOSTIGMA

Valued for clusters of intense blue, phloxlike flowers that bloom in summer to late fall, when cool hues are often especially welcome in the garden. (For pale blue-flowered Cape plumbago, see Plumbago auriculata.) Tolerates inconsistent watering. Shrubby species are usually treated like perennials in colder zones; cut them back after bloom and apply a thick mulch.

Ceratostigma willmottianum (photo courtesy of Monrovia)
Ceratostigma willmottianum (photo courtesy of Monrovia)

Click to Enlarge

Ceratostigma willmottianum

Grows as an airy mass of wiry stems 2–4 ft. high and wide. Deep green, 2-in.-long leaves are somewhat diamond shaped, with tapering tips; turn yellow or red and drop quickly after frost.

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