HYDRANGEA serrata 'Grayswood'

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.

• Deciduous - narrowly oval, pointed, mid-green leaves to 15cm (6in) long.
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  Blue - blue centre, outer florets deep crimson as they age.
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  Height - 2m (6½ft)
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  Spread - 2m (6½ft)
• Medium shrub - Typically grow to around 4-6 feet in height - vigorous, compact shrub. Flattened flowerheads 5-10cm (2-4in) across.
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  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)
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  Full sun - shelter from cold winds
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  Partial shade
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  Harmful if eaten - These will give you an upset tummy, so please don't eat any of these.
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  May cause skin allergy or irritant - Having skin or eye contact with these plants could result in an allergic reaction, burning or rash.
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  Additional Features - Pests & Diseases - - red spider mites, scale insects, vine weevils, capsid bugs, grey mould(Botrytis), Hydrangea virus, powdery mildew, leaf spot, honey fungus.
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  Place of origin - Korea, Japan
• Burncoose Specialities - Hydrangeas -
• Flower Shape - Lacecap -
• Hardiness - Fully hardy -
• 
  Pruning group - 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
  
  RHS group 4
• Seasonal Interest - Autumn -
• Summer
• Soil Conditions - Fertile moist well-drained soil - - humus-rich
• Wildlife - Rabbit Resistant -

• Hydrangeas for everyone!
• Soil & Feeding
• Pruning Hydrangeas
• Pruning Hydrangeas - Video Tip ondemand_video
• Hydrangeas, keeping them blue - Video Tip ondemand_video
• Propagation
• Drying Flower Heads
• Drying hydrangea flower heads - Video Tip ondemand_video
• Popular Mopheads & Lacecaps
• Hydrangeas and other plants
• Further Reading

• Hydrangea 'Lanarth White' - Video Tip ondemand_video
• Hydrangea serrata - Video Tip ondemand_video
• Hydrangea seemanii - Video Tip ondemand_video