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Burncoose Nurseries - part of the Caerhays Estate
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  • RHODODENDRON 'Yellow Hammer'
    RHODODENDRON 'Yellow Hammer'
    © Burncoose Nurseries, all pictures for illustrative purposes only.
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    RHODODENDRON 'Yellow Hammer'  RHODODENDRON 'Yellow Hammer'  RHODODENDRON 'Yellow Hammer'  RHODODENDRON 'Yellow Hammer'  MAGNOLIA sargentiana var robusta and RHODODENDRON
© Burncoose Nurseries, all pictures for illustrative purposes only. MICHELIA laevifolia and RHODODENDRON 'Yellow Hammer'
© Burncoose Nurseries, all pictures for illustrative purposes only. RHODODENDRON 'Elizabeth' and RHODODENDRON 'Yellow Hammer'
© Burncoose Nurseries, all pictures for illustrative purposes only. RHODODENDRON 'Elizabeth' and RHODODENDRON 'Yellow Hammer'
© Burncoose Nurseries, all pictures for illustrative purposes only.
    >

    RHODODENDRON 'Yellow Hammer'

     AWARD
    RHODODENDRON HYBRIDS

    A Caerhays hybrid with tubular bell-shaped yellow flowers. Normally flowers a second time in the autumn
    plant size comparison icon
    2 to 3 Litre   - Click to view photo
    Delivery Information
    Available late spring to early summer 2026
    £24.00 each 
    MULTIBUY SAVING
    Any 3+ £22.00 each
    Available late spring to early summer 2026 - Spring according to the Met Office is defined as March 1st - May 31st. Therefore late spring is mid-April onwards. This is not a guaranteed date but an estimate and subject to availability.
     
    Full Plant Details - Sun/Soil & other attributes
    • Flowering
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      Jan
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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
    • Burncoose speciality
      See Burncoose Speciality group for more details
    • Good to know
      Shallow planting is essential.
    • Pests & Diseases
      Vine weevils, scale insects, honey fungus, powdery mildew, bud blast.
    • Place of origin
      Garden origin. UK. pre.1931. JC Williams, Caerhays Estate. Cornwall
    • Caerhays bred plants
    • Rhododendrons
    • Rhododendron
    • Evergreen
    • Yellow
    • Frost hardy (down to -5)
    • Entire
    • Oblanceolate
    • Height
      2m (6½ft)
    • Spread
      2m (6½ft)
    • Medium shrub
      Typically grow to around 4-6 feet in height
    • 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)
    • Spring Seasonal Interest
    • Winter Seasonal Interest
    • Acid / ericaceous loving
      Ideally pH 4.5-6.0
    • Fertile moist well-drained soil
      Humus-rich
    • Neutral to acid soil
    • Full sun
      Prefers full sun. Shelter from strong winds
    • Partial shade
    • harmful if eaten
      People and pets, i.e. cats, dogs, rabbits, rodents, tortoises
    • Rabbit Resistant
    • Mature Size
      2m (6½ft)
      Medium Shrub - guide for size not form Average Person
        2m (6½ft)
       
    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
    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
    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
    Fertilisers & Feeds - Empathy
    Specially developed organic concentrated seaweed feed for ericaceous plants that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, Perfect used in conjunction with Rootgrow™ Ericoid.
    1 ltr
    £8.50
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