AWARD

RHODODENDRON sinogrande


RHODODENDRON sinogrande

 
  • Evergreen
    Very large oblong to lance-shaped, glossy, dark green leaves to 75cm (30in) long with a smooth silver to buff indumentum beneath
  • Cream
  • Height
    10m (33ft)
  • Spread
    10m (33ft)
  • Tall Shrub
    Or small tree. Produces trusses of 20-30 widely bell-shaped flowers 5cm (2in) long marked crimson inside
  • Tree
  • 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)
    Borderline
  • Full sun
  • Partial shade
  • Additional Features
    Good to know - introduced into UK by George Forrest (1873-1932) in 1913.
  • Pests & Diseases
    vine weevils, scale insects, honey fungus, powdery mildew, bud blast.
  • Place of origin
    Tibet, China, Burma
  • Core Plants
    Rhododendron
  • Garden Location/Conditions
    Woodland garden
  • Hardiness
    Frost hardy (down to -5)
  • Pruning group
    Pruning group 8
    Suitable for: Wall trained shrubs and less vigorous climbers.
    Action: For climbers 'spur prune' by cutting back 3-4 buds of the permanent framework. For wall trained shrubs cut back flowered shoots to within 2-4 buds of permanent framework.
    When: Annually after flowers if on previous year's growth, or in late Winter or Spring if on current year's growth.

    RHS group 12 & 13
  • Seasonal Interest
    Spring
  • Soil Conditions
    Fertile moist well-drained soil - humus-rich
  • Neutral to acid soil
    ideally pH4.5-5.5
  • Tree Shape
    Rounded to broadly spreading
  • Wildlife
    Rabbit Resistant
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Cold weather damage to evergreen plants
Rhododendron - Care Guide
Rhododendron - Propagation
Rhododendron - Video Spotlights
Shrubs and Trees - Seeds - 1) Collecting Seeds
Shrubs and Trees - Seeds - 2) Storing Seeds
Shrubs and Trees - Seeds - 3) Planting Seeds
10m (33ft)
tree - guide for size not form Average Person
  10m (33ft)
 

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