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  • RHODODENDRON oldhamii
    © Burncoose Nurseries, all pictures for illustrative purposes only.
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    RHODODENDRON oldhamii  RHODODENDRON oldhamii  RHODODENDRON oldhamii  RHODODENDRON oldhamii  MAGNOLIA sargentiana var robusta and RHODODENDRON
© Burncoose Nurseries, all pictures for illustrative purposes only.
    >

    RHODODENDRON oldhamii

    Commonly known as Formosan azalea

    RHODODENDRON SPECIES

    Hairy young shoots on this azalea-like species and brick red flowers
     
    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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      May
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      Aug
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      Nov
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    • Burncoose speciality
      See Burncoose Speciality group for more details
    • Good to know
      Shallow planting in lime-free soil is essential. Can flower sporadically through to autumn
    • Pests & Diseases
      Vine weevils, whiteflies, scale insects, caterpillars, aphids, honey fungus, powdery mildew, bud blast.
    • Place of origin
      Taiwan. Collected by Richard Oldham, Kew, UK., 1864.
    • Rhododendrons
    • Rhododendron
    • Evergreen
      Green to yellow-green leaves
    • Red
      Salmon to brick red
    • Suitable for small gardens
    • Fully hardy
    • Entire
    • Elliptic
    • Height
      1.2m (4ft)
    • Spread
      1.2m (4ft)
    • Medium shrub
      Typically grow to around 4-6 feet in height
      Spreading, open-branched shrub. Produces flowers, to 5cm (2in) across, in clusters of 1-3
    • 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 - 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)
    • Autumn Seasonal Interest
    • Spring Seasonal Interest
    • Summer Seasonal Interest
    • Acid / ericaceous loving
      Ideally pH 4.5-6.0
    • Fertile moist well-drained soil
      Humus-rich
    • Partial shade
    • harmful if eaten
      People and pets, i.e. cats, dogs, rabbits, rodents, tortoises
    • Rabbit Resistant
    • Mature Size
      1.2m (4ft)
      Medium Shrub - guide for size not form Watering Can
        1.2m (4ft)
       
    View Detailed Plant Description

     

    View Planting Tips and Care Advice
    Cold weather damage to evergreen plants
    Shrubs and Trees - Seeds - 3) Planting Seeds
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    Useful extras...

    Fertilisers & Feeds - Vitax
    For healthy growth and flowering of ericaceous plants, Azalea, Rhododendron & Shrub Fertiliser is perfect for acid-loving plants.
    0.9 kg
    £12.00
    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
    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.
    0.9 kg
    £6.00
    Unavailable
    2.5 kg
    £13.00
    Unavailable
    4.5 kg
    £25.00
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