Iris sibirica - Blue Siberian Iris, Pond Edge & Border Plant
Iris sibirica - Blue Siberian Iris, Pond Edge & Border Plant
£2.60
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Planting Time
Flowering Time
Iris sibirica, known as Siberian iris or Siberian flag, forms bushy clumps of narrow, grassy leaves. In early summer it carries up to five violet-blue flowers per stem, each 6–7 cm across, with the falls veined purple on white at the base.
Siberian iris at a glance
| Botanical name | Iris sibirica |
|---|---|
| Common name | Siberian iris, Siberian flag |
| Plant type | Clump-forming iris; dies back in winter |
| Height and spread | About 1–1.2 m tall, up to 50 cm wide |
| Flowers | Violet-blue, 6–7 cm across, falls veined purple on white, in early summer |
| Position | Full sun or part shade |
| Soil | Moist but well-drained; not waterlogged. Any type or pH |
| Pond depth | None – moist soil above the water line |
| Hardiness | RHS H7 – very hardy (below -20°C) |
| Native to | Europe to Central Asia (not UK native) |
Is Siberian iris a pond plant?
No. It is a moist border plant, not a water plant. Plant it in moist soil around the pond, above the water line, but not in water: the RHS says it should not be waterlogged. It copes with both damp and drier conditions.
Where to plant Siberian iris
- Moist borders and pond surrounds
- The drier edge of a bog garden
- Sun or part shade
How to plant and care for it
Plant in spring or summer. Remove dying foliage in autumn. Watch for slugs, snails and thrips.
Is it poisonous?
Yes. Irises are harmful if eaten by people or pets, so wear gloves when handling it.
Which size should I buy?
Bare-root plants (7 cm, 9 cm, 1 litre and 3 litre) arrive without a pot or compost and are the most economical way to plant a group. Potted plants (9 cm, 1 litre and 3 litre) arrive growing in our peat-free compost and give a faster display. Packs of 3 come in 7 cm, 9 cm, 1 litre and 3 litre bare-root sizes and cost less per plant. The 2x Pot & Compost option is two plants supplied with pots and compost.
Pond depth: 0cm
Light: Full sun or part shade
Hardiness: Hardy
Height and spread: 80 - 120cm tall, 30 - 50cm wide
Planting and flowering months are shown in the calendar under the photos.
Bare root (7 cm, 9 cm, 1 litre, 3 litre): plants sent without a pot or compost, ready to plant straight away. The most economical way to plant a group.
Potted (9 cm, 1 litre, 3 litre): plants growing in our recycled, peat-free compost made in Lincolnshire. Larger sizes give a faster display.
Pack of 3 (7 cm bare-root, 9 cm bare-root, 1 litre bare-root, 3 litre bare-root): three plants of the chosen size at a lower price per plant.
2x Pot & Compost: two plants supplied with pots and compost.
Sizes shown with a line through them are currently unavailable.
At Lincs Plants, we strive to provide fast and reliable shipping to ensure your plants arrive in perfect condition. We offer 1-3 day shipping through a variety of dispatch methods to suit your needs.
Processing Time:
Orders are processed within 1 - 3 business day after payment confirmation. Orders placed on weekends or public holidays will be processed the next business day.
Shipping Methods:
- Standard Shipping (1-3 days)
- Express Shipping (1-2 days)
Should you have any questions or concerns about your shipment, feel free to contact us.
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