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    HYDRANGEA 'Altona'
    © Burncoose Nurseries, all pictures for illustrative purposes only.
    <
    HYDRANGEA 'Altona'  HYDRANGEA 'Altona'  HYDRANGEA 'Altona'  HYDRANGEA 'Altona'  COTINUS coggygria 'Royal Purple' and HYDRANGEA 'Altona'
© Burncoose Nurseries, all pictures for illustrative purposes only.
    >

    HYDRANGEA 'Altona'

    Commonly known as Hortensia

     AWARD
    Mophead - frilled blue or red
     
    Full Plant Details - Sun/Soil & other attributes - Click to close
    • Flowering
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      Jan
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      Feb
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    • Burncoose speciality
      See Burncoose Speciality group for more details
    • Pests & Diseases
      Red spider mites, scale insects, vine weevils, capsid bugs, grey mould (Botrytis), hydrangea virus, powdery mildew, leaf spot, honey fungus.
    • Place of origin
      Japan. Garden origin. Germany. 1931. H. Schadendorf
    • Hydrangeas
    • Deciduous
      Broadly ovate leaves to 20cm (8in) long
    • Red
    • Mophead
    • Border
      Suitable for a shrub border
    • Cottage garden
    • Town garden
    • Fully hardy
    • Serrate
    • Ovate
    • Height
      1m (39in)
    • Spread
      1.5m (5ft)
    • Medium shrub
      Typically grow to around 4-6 feet in height
    • Pruning group 3
      Suitable for: Deciduous shrubs that flower in the Summer or Autumn on previous year's growth, or deciduous shrubs that flower in late Winter-Spring on previous year's growth.
      Pruning: Trim off old flowers to the first bud beneath flower head. Cut back 1/3 of the oldest stems to promote replacement growth.
      When: Annually

    • Hardy - cold winter
      Hardy in most places throughout the UK even in severe winters. May not withstand open/exposed sites or central/northern locations. Plant can withstand temperatures down to -15°C (5°F)
    • Summer Seasonal Interest
    • Fertile moist well-drained soil
      Humus-rich.
    • Full sun
      shelter from cold winds
    • Partial shade
    • harmful if eaten
      Pets, i.e. cats, dogs, rabbits, rodents, notably dogs and cats
    • may cause skin allergy
      People
    • Rabbit Resistant
    • Mature Size
      1m (39in)
      Medium Shrub - guide for size not form Watering Can
        1.5m (5ft)
       
    View Detailed Plant Description

    We recommend the use of Hydrangea blueing agent for all blue varieties. Due to the difficulties of growing blue Hydrangeas in pots, the first flush of flowers may flower pink. Please see below our article on Hydrangea care for full information.

    View Planting Tips and Care Advice
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    Useful extras...

    Fertilisers & Feeds - Empathy
    Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
    Small - 60g sachet
    £3.00
    Medium - 150gm sachet
    £6.00
    Large - 360gram sachet
    £12.00
    Unavailable
    Fertilisers & Feeds - Vitax
    For changing pink hydrangea flowers to blue, or making blue flowers darker. If your soil is alkaline the proportions should be doubled.
    250g
    £6.50
    Fertilisers & Feeds - Empathy
    Creates a mini-meadow for attracting bees, butterflies and bugs to your garden. 200g sachet which will cover 3 square metres. Contains Rootgrow™ mycorrhizal fungi.
    3m²
    £7.00
    10m²
    £15.50
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