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  • RHODODENDRON 'Horizon Monarch'
    © Burncoose Nurseries, all pictures for illustrative purposes only.
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    RHODODENDRON 'Horizon Monarch'  RHODODENDRON 'Horizon Monarch'  RHODODENDRON 'Horizon Monarch'  RHODODENDRON 'Horizon Monarch'  RHODODENDRON 'Horizon Monarch'  ACER palmatum 'Atropurpureum' and RHODODENDRON 'Horizon Monarch'
© Burncoose Nurseries, all pictures for illustrative purposes only. MAGNOLIA sargentiana var robusta and RHODODENDRON
© Burncoose Nurseries, all pictures for illustrative purposes only. RHODODENDRON 'Horizon Monarch' and RHODODENDRON 'Lemon Meringue'
© Burncoose Nurseries, all pictures for illustrative purposes only. RHODODENDRON 'Horizon Monarch' and RHODODENDRON 'Lem's Cameo'
© Burncoose Nurseries, all pictures for illustrative purposes only.
    >

    RHODODENDRON 'Horizon Monarch'

     AWARD
    Red in bud opening yellow with small red flares
     
    Plant Details
    • 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 essential
    • Pests & Diseases
      Vine weevils, scale insects, powdery mildew, bud blast, honey fungus
    • Place of origin
      Garden origin. USA. EC Brockenbrough, Seattle
    • Rhododendrons
    • Rhododendron
    • Evergreen
      Leathery, elliptic, dark green leaves to 18cm (7in) long.
    • Yellow
      Red in bud opening pale 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
      Spreading habit. Produces openly funnel-shaped flowers to 10cm (4in) across in upright trusses of up to 15 flowers.
    • 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
    • Summer Seasonal Interest
    • 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)
       
    Planting Tips and Care Advice
    • Pruning group
      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.

    • Soil Conditions
      Acid / ericaceous loving
      Ideally pH 4.5-6.0
      Fertile moist well-drained soil
      Humus-rich
      Neutral to acid soil
    • Sun Requirements
      Partial shade
    Cold weather damage to evergreen plants
    Shrubs and Trees - Seeds - 3) Planting Seeds
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    Useful extras...

    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- inc c&p
    £7.00
    10m² - inc c&p
    £15.00
    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 - inc c&p
    £6.00
    Large - 360gram sachet - inc c&p
    £12.00
    Vermin & Pest Control
    Slug killer blue mini pellets are easy to use and give effective control of slugs and snails. Ideal in garden, conservatory or greenhouse.
    800g - Free c&p
    £6.50
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