Imperial Reign Iris
Iris iris 'Imperial Reign'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
36 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
Europe and Asia
Toxicity
Toxic if ingested, especially the rhizome.
The Story
Plant Bio
A classic tall bearded iris, forming clumps of sword-like, gray-green leaves from which tall, sturdy stalks bearing large, fragrant, six-petaled flowers emerge in spring. A striking tall bearded iris with ruffled, blue-violet standards and deeper velvety blue-violet falls edged in a lighter shade. Features prominent yellow-orange beards.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
We couldn't find this plant listed online right now.
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Planting
How to Grow
- Tuck iris rhizomes 2 inches deep in well-draining soil.
- Water thoroughly after planting to settle soil around roots.
- Place in full sun for optimal blooming and growth.
- Mulch lightly to retain moisture and suppress weeds.
- Divide clumps every 3-4 years in late summer or early fall.
- Remove dead or damaged leaves to maintain plant health.
Pro Tip
Plant irises in well-drained soil with full sun for best flowering results.
Keep It Thriving
Care Guide
Do
- Water regularly during dry spells 🌱
- Remove spent blooms to encourage new growth
- Divide clumps every 3-4 years for vigorous flowering
Don't
- Avoid overwatering to prevent rhizome rot ❌
- Do not plant in poorly drained soil
- Refrain from cutting foliage in late fall
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| Plant | ||||||||||||
| Prune | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Imperial Reign Iris questions
What zones can Imperial Reign Iris grow in?
Imperial Reign Iris is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Imperial Reign Iris deer resistant?
Yes — Imperial Reign Iris is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Imperial Reign Iris bloom?
Imperial Reign Iris typically blooms in late spring through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Imperial Reign Iris need full sun?
Imperial Reign Iris does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Imperial Reign Iris drought tolerant?
Yes — once established (usually after the first full season), Imperial Reign Iris handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Iris to compare
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Iris germanica 'Mix'
Celebration Song Iris
Iris tenuissima 'Celebration Song'
Poem of Ecstasy German Iris
Iris x germanica 'Poem Of Ecstasy'
Siberian Iris 'Paprikash'
Iris x hybrida 'Paprikash'
Dutch Iris Mix
Iris hollandica 'Mix'
Baboon Bottom Bearded Iris
Iris germanica 'Baboon Bottom Bearded'
Keep exploring
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Grow Imperial Reign Iris with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
