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PlantSnap
Plant Care
Chinese plumbago
(Ceratostigma willmottianum)
Also Known As
Chinese plumbago, Willmott's bluebell, Blue flowering plant
About This Plant
Ceratostigma willmottianum is a deciduous shrub with an upright habit, typically growing up to 3 feet (90 cm) tall and wide. It is known for its attractive, deep blue flowers and bright green foliage that turns reddish-purple in the fall.
Plant Care Instructions
Outdoor Size Range
2-3 feet (60-90 cm) tall and wide
Light Requirements
Ceratostigma willmottianum prefers full sun to partial shade. It can tolerate some shade, but the foliage color may not be as vibrant.
Humidity Needs
It can tolerate a wide range of humidity levels.
Fertilizing Schedule
It does not require much fertilizer. A balanced fertilizer once a year in the spring can help promote growth and flowering.
Pruning Guidelines
Prune in late winter or early spring before new growth appears. Cut back any dead or damaged branches and thin out any crossing branches to maintain a healthy shape.
Common Pests and Diseases
Ceratostigma willmottianum is relatively pest-free, but it can be susceptible to powdery mildew and root rot in poorly-draining soil.
Indoor Size Range
Not suitable for indoor growth
Watering Schedule
It prefers well-draining soil and regular watering, especially during the growing season. However, it can tolerate some drought once established.
Temperature Range
Ceratostigma willmottianum is hardy in USDA zones 6-9 and can tolerate temperatures as low as -10ยฐF (-23ยฐC).
Growing Season
It blooms from mid-summer to early fall.
Growing Difficulty Level
Ceratostigma willmottianum is relatively easy to grow and maintain.
USDA Hardiness Zones
6-9
Did You Know?
Ceratostigma willmottianum is named after Ellen Ann Willmott, a British horticulturist who collected plants from all over the world and was known for her eccentricities, including wearing a hat decorated with artificial flowers and carrying a revolver to shoot at rabbits in her garden.
