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6th January 2021. In line with the current government lockdown rules, Burncoose Nurseries is closed to visitors. However at present we are able to offer click and collect to local customers. This will be weekdays only, not weekends.
Mail order is continuing as normal. However please allow extra time for the couriers to deliver, once despatched from us. Sorry to say that some depots are experiencing high volumes of traffic, also staff shortages.

CERATOSTIGMA willmottianum
Commonly known as Shrubby plumbago
Clear blue
Further Reading....
- Details
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Deciduous - lance-shaped to obovate, bristly, mid- to dark-green, purple-margined leaves to 5cm (2in) long. Red in autumn.
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Blue - pale to mid-blue with purple-red tubes
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Height - 1m (39in)
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Spread - 1.5m (5ft)
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Medium shrub - Typically grow to around 4-6 feet in height - open-branched, spreading shrub with slender stems
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Hardy - average winter - Hardy through most of the UK apart from inland valleys, at altitude and central/northerly locations. May suffer foliage damage and stem dieback in harsh winters in cold gardens. Plant can withstand temperatures down to -10°C (14°F)
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Full sun
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Additional Features - Pests & Diseases - - powdery mildew.
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Place of origin - western China.
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Resistant to honey fungus - These plants have little or few problems with honey fungus.
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Flower Shape - Spikes - - flowers to 2.5cm (1in) across in axillary and terminal spike-like clusters
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Tubular
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Hardiness - Frost hardy (down to -5) -
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Leaf margin - Serrulate - see photos above
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Leaf shape - Lanceolate - see photos above
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Obovate
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Pruning group - Pruning group 7
Suitable for: Evergreen shrubs that flower on previous year's growth in Spring, or current year's growth in late Summer/Autumn.
Action: Cut back flowered shoots to within 1 inch of previous year's growth.
When: Annually after flowering or in Spring if flowering on current year's growth.
RHS group 10 -
Seasonal Interest - Autumn -
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Soil Conditions - Medium to light, fertile, well drained soil -
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Ceratostigma - Growing Guide
1m (39in)
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1.5m (5ft) |
Buy Varieties of CERATOSTIGMA willmottianum

CERATOSTIGMA willmottianum 'Sapphire Ring' >
Commonly known as: Shrubby plumbago.
Yellow-gold foliage and blue flowers. Compact tidy habit
Useful extras...

Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00

Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
2 options from £6.00

Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants.
Perfect used in conjunction with Rootgrow™.
Only £7.50