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Iris 'Caesar's Brother'
Iris 'Caesar's Brother'
Iris 'Caesar's Brother'
Iris 'Caesar's Brother'
Iris 'Caesar's Brother'
Iris 'Caesar's Brother'
Iris 'Caesar's Brother'
Iris 'Caesar's Brother'
  1. Home
  2. Iris 'Caesar's Brother'

Iris 'Caesar's Brother'

"Siberian iris"

Iris 'Caesar's Brother'

3 bare roots — £5.25

Order today, receive in February/March
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Delivery schedule

Orders placed before 1 March 2025
You can expect your order in February/March 2025

Orders placed 1 March - 15 April 2025
You can expect your order in March/April 2025

Orders placed 16 April - 15 May 2025
You can expect your order within 10 business days

Free delivery on UK orders over £50
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UK orders over £50
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UK orders under £50
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Northern Ireland orders under £50
£5.99

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Description

This utterly stunning Siberian iris or Siberian flag is a clump-forming plant. In June and July its intense violet-blue flowers appear, each one speckled and striped on the throat with white and golden yellow. The blooms stand out from the mass of bright green, strap-like leaves. It is a variety that is slightly taller than most. Growing from a rhizome (similar to a bulb), Iris sibirica 'Caesar's Brother' prefers a moist, neutral to slightly acid soil in sun or partial shade. It looks best planted in bold drifts beside water, and then left alone to naturalise. It is particularly useful on difficult banks, where it will help to prevent soil erosion.

Iris sibirica 'Caesar's Brother' needs space to spread out as, over time, it will form into a large clump. If you have a pond, this iris can also be planted in an aquatic pot and set in the water, as a marginal plant. Siberian flag irises are easy, trouble-free, sturdy and upright, and seldom troubled by insect pests.

Key features

  • Good for cutting

  • Perfect for pots

  • Comes back every year

  • Loved by pollinators

  • Naturalising

  • Thrives well in full sun

  • In peat-free compost

  • Low maintenance

  • Fully hardy

  • Rodent resistant

Specs & details

  • Botanical name

    Iris sibirica 'Caesar's Brother' (Sib)

  • Flower colour

    Blue

  • Plant size

    1

  • Established height

    70cm-1m

  • Established spread

    50-70cm

  • Plant spacing

    10 plants per m2

  • Leaf colour

    Green

  • Habit

    Upright
    Clump-forming

  • Life cycle

    Perennial
    Naturalising

  • Hardiness

    Fully hardy

  • Years to establish

    1-2 years

  • Sunlight

    Full sun
    Partial shade

  • Position

    Sheltered
    Exposed

  • Suitable for

    Pots
    Large containers
    Borders
    Meadows
    Water gardens
    Coastal gardens
    Low maintenance gardens
    Cut flower gardens

  • Soil acidity

    Any

  • Soil moisture

    Damp
    Boggy

  • Soil type

    Loam
    Sandy
    Clay
    Loam-based compost
    Multipurpose compost

  • Growing skill

    Easy to grow

  • Scented

    No

  • Pollinator-friendly

    No

  • Mouse resistant

    Yes

  • Rabbit resistant

    Yes

  • Deer resistant

    No

  • Toxicity

    Skin/eyes irritant
    Harmful if eaten

Plant calendar

JanFebMarAprMayJuneJulyAugSepOctNovDec
  • Planting
  • Flowering

Useful information

    • Soak your Iris 'Caesar's Brother' roots in water for 3-6 hours prior to planting.

    • Plant your "Siberian iris" bare roots into temporary pots with a multipurpose compost in spring and grow-on in a sheltered spot outdoors.

    • Choose a pot which comfortably fits the bare roots. Some have a noticeable crown which should be just below the soil surface with any top growth exposed.

    • Plant out into borders or permanent containers in late spring or early summer once in full growth. Choose a position in sun or shade depending on the variety.

    Read all planting & care instructions

  • Orders placed before 1 March 2025
    You can expect your order in Feb/March 2025

    Orders placed 1 March - 15 April 2025
    You can expect your order in April 2025

    Orders placed 16 April - 15 May 2025
    You can expect your order within 10 business days

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£4.95
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Perennials in 1 minute

The beauty of perennial plants doesn’t just lie in their long-lasting flowers and sturdy, resilient nature, but it’s their sheer determination to keep on coming back stronger every year —in year one they’re good, but in future years they’re even better!
View all bare-root perennials

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