The illustrated growing guide
Siberian Iris
Iris sibirica
Family Iridaceae
Est. zones 3-9
The easygoing iris — none of the bearded iris's borer problems or need for baking rhizomes. Grassy vertical foliage and elegant flowers on tall stems, thriving in ordinary to moist soil (even pond edges), deer-resistant and long-lived. The seed pods are handsome in dried arrangements. If bearded iris frustrates you with rot and borers, grow this instead.
Full Sun to Part Shade
Moderate water
Moderate growth
Deer-resistant
Attracts bees
From the print shop
The closest print we make
We don’t print Iris sibirica. The closest we have is Iris ensata (“Iris Ensata”) in the Irises collection — the same genus, Iris, not the same species.
16 designsfrom $21.99white or black groundmatte poster, unframed
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Overview
Will siberian iris suit your garden, and what goes wrong.
Will it fruit where you are?
Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what siberian iris actually needs.
Hardy inZones 3-9Siberian Iris at a glance
Common siberian iris problems
- Almost none (no iris borer, unlike bearded)
- Almost none
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Growing
Light, water, soil, propagation and the season’s jobs.
How to grow siberian iris: light, water & soil
How to plant & propagate siberian iris
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The year
What siberian iris asks for, month by month.
The siberian iris year, month by month
BloomPruneWhat each band means
- Bloom — flowers open — pollinators working, frost on blossoms is the danger.
- Prune — shape it now — cuts heal cleanly and structure is visible.
The siberian iris year as text
- Jan quiet month
- Feb quiet month
- Mar pruning
- Apr pruning
- May bloom, pruning
- Jun bloom
- Jul quiet month
- Aug quiet month
- Sep pruning
- Oct pruning
- Nov pruning
- Dec quiet month
These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.
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Ecology & uses
What it does for the garden, and what it is grown for.
Siberian Iris in the garden system
- Herbaceous layer perennial
- Nectary/insectary
What siberian iris is grown for
! Some parts toxic — see notesToxic to pets; sap irritates
Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.
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Cultivars
Named varieties of siberian iris, ruled as a catalogue.
Best siberian iris varieties & cultivars
'Caesar's Brother' (deep purple, classic); 'Butter and Sugar' (yellow-white); 'Ruffled Velvet'
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Sources & plant ID
Where the care distinctions come from, and how the plant is filed.
Research basis
Sources behind this profile
No extension citations are attached to siberian irisyet. The care figures below come from the library's own catalogue rather than a traced primary source.
Plant ID
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Where to buy
Third-party nurseries — not Story Thyme Farms.
Third-party nurseries, not Story Thyme Farms. Prices are theirs.
Story Thyme Farms may earn a small commission from these links, at no cost to you — it never changes what we recommend.
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Questions
Siberian Iris questions, answered straight.
Do deer eat siberian iris?
Rarely — siberian iris is considered deer-resistant, which makes it one of the safer unfenced choices in deer country. Hungry deer in a hard winter test every rule, but it's a low-risk pick.
Is siberian iris safe for kids and pets?
With care. Toxic to pets; sap irritates Site it accordingly if children or pets roam the garden. This is general reference, not medical or veterinary advice — call a vet or poison control if something has actually been eaten.
How do you propagate siberian iris?
Division or seed.
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Elsewhere
Where siberian iris sits in the library.
Sunflower
Zinnia
Peony
Daylily