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IRIS sibirica 'Blue King'

Commonly known as Siberian flag

  • Deciduous
    Usually. Narrow, grass-like leaves to 45cm (18in) long
  • Blue
  • Height
    To 1.2m (4ft)
  • Spread
    10-50cm (4-20in)
  • Bulb/Corm or rhizomatous perennial
    Clump-forming, rhizomatous perennial. Each branched stem produces up to 5 flowers to 7cm (2¾in) across
  • Herbaceous
    Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.
  • Very hardy
    Hardy in the severest continental climates including exposed upland locations in the UK. Plant can withstand temperatures < -20 (-4°F)
  • Full sun
  • Partial shade

IRIS sibirica 'Blue King'

Available again from summer 2022 - Could be any time, June through to end August. This is not a guaranteed date but an estimate and subject to availability.
£13.50 each 

Any 3+ £11.00 each
Delivery Information Available again from summer 2022


  • Additional Features
    Good to know
    Beardless Siberian iris
    Pests & Diseases
    Slugs, snails, thrips, viral infections, grey mould(Botrytis)
    Place of origin
    Central and eastern Europe, northeastern Turkey, Russia. Garden origin.
  • Hardiness
    Fully hardy
  • Seasonal Interest
  • Soil Conditions
    Fertile moist well-drained soil
    Moderately fertile. Humus-rich. Will tolerate moist, but not waterlogged, soil
    Neutral to acid soil
    Neutral to slightly acid
  • Wildlife
    Rabbit Resistant
to 1.2m (4ft)
bulb/corm - guide for size not form Watering Can
  10-50cm (4-20in)

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