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  • CEANOTHUS arboreus 'Trewithen Blue'
    CEANOTHUS arboreus 'Trewithen Blue'
    © Burncoose Nurseries, all pictures for illustrative purposes only.
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    CEANOTHUS arboreus 'Trewithen Blue' CEANOTHUS arboreus 'Trewithen Blue' CEANOTHUS arboreus 'Trewithen Blue' CEANOTHUS arboreus 'Trewithen Blue' CEANOTHUS arboreus 'Trewithen Blue' and MAGNOLIA 'Limelight'
© Burncoose Nurseries, all pictures for illustrative purposes only. CEANOTHUS arboreus 'Trewithen Blue' and MAGNOLIA 'Yellow Lantern'
© Burncoose Nurseries, all pictures for illustrative purposes only. CEANOTHUS arboreus 'Trewithen Blue' and MAGNOLIA 'Yellow Lantern'
© Burncoose Nurseries, all pictures for illustrative purposes only. CEANOTHUS arboreus 'Trewithen Blue' and MAGNOLIA 'Yellow Lantern'
© Burncoose Nurseries, all pictures for illustrative purposes only.
    >

    CEANOTHUS arboreus 'Trewithen Blue'

    Commonly known as Catalina ceanothus, Catalina mountain lilac

     AWARD
    Largest blue
     
    Full Plant Details - Sun/Soil & other attributes
    • Flowering
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      Feb
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      Mar
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      Apr
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      May
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      Jun
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      Jul
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      Aug
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      Sep
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      Oct
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      Nov
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      Dec
    • Good to know
      Wildlife plant - insects
    • Pests & Diseases
      honey fungus.
    • Place of origin
      Native to Catalina Islands, California, USA. This selection bred at Trewithen Gardens, Grampound, Cornwall, UK
    • Evergreen
      Oval to rounded dark-green leaves to 10cm (4in) long.
    • Blue
      Mid-blue
    • Panicles
      Large, pyramidal, terminal and lateral panicles to 12cm (4¾in) long
    • Border
      Suitable for a shrub border
    • Coastal / windswept
      Suitable for an open site slightly back from the sea
    • Cottage garden
    • Town garden
    • Fully hardy
    • Serrulate
    • Oblong
    • Height
      6m (20ft)
    • Spread
      8m (26ft)
    • Tall Shrub
      Vigorous, spreading shrub or small tree
    • Pruning group 5
      Suitable for: Evergreen shrubs that require minimal pruning.
      Action: Trim or lightly cut back shoots that spoil symmetry. Deadhead regularly.
      When: Annually after flowering.

    • 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)
    • Scented flowers
    • Spring Seasonal Interest
    • Fertile well drained soil
    • Free draining sandy soil
    • Full sun
      With shelter from cold winds. Most do well trained against a wall.
    • Bee friendly
    • Butterfly friendly
    • Rabbit Resistant
    • Mature Size
      6m (20ft)
      Tall Shrub - guide for size not form Average Person
        8m (26ft)
       
    View Detailed Plant Description

     

    View Planting Tips and Care Advice
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    Useful extras...

    Fertilisers & Feeds - Empathy
    AFTER PLANT TOMATO FEED Liquid Concentrate with Bio stimulant is a high potash liquid concentrate containing seaweed extract, plant derived amino acids and other nutrients specifically formulated to benefit tomatoes and greenhouse plants.
    1ltr
    £8.50
    Fertilisers & Feeds - Vitax
    Improves vegetable, fruit and flower quality. Blood, Fish and Bone contains three major nutrients essential for strong and healthy growth.
    1.5 kg
    £6.50
    Fertilisers & Feeds - Empathy
    AFTER PLANT GROW YOUR OWN seaweed is ready to use liquid concentrate that was specially formulated be used on all edible plants.
    1ltr
    £8.50
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