Iris ensata 'Imperial White'
Japanese water iris
Orders placed until 29 February 2027
You can expect your order in February/March 2027
Orders placed 1 March - 15 April 2027
You can expect your order in March/April 2027
Orders placed 16 April - 15 May 2027
You can expect your order within 10 business days
Free delivery
on orders over £50
Standard delivery £3.99
on orders under £50
All orders are responsibly packed and delivered carbon neutral — Learn more
Delivery to Northern Ireland
Standard delivery £6.99
on orders under £50
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Description
Iris ensata 'Imperial White' brings understated elegance to any water garden or moist border, with its pristine white to soft cream blooms creating a serene and sophisticated display. Each flower of Iris 'Imperial White' is accented by subtle darker markings at the base, adding depth and intrigue to the otherwise ethereal petals. Rising on tall, upright stems above the lush green foliage, Iris ensata 'Imperial White' commands attention without overwhelming the senses, making it a perfect companion for ponds, streams, or tranquil Japanese-inspired gardens. The harmonious blend of cream and white ensures that Iris 'Imperial White' complements a wide variety of plants, allowing for delicate contrasts or layered plantings that enhance its graceful appearance.
Thriving in consistently moist, well-draining soil with full sun or partial shade, Iris ensata 'Imperial White' is a reliable addition to UK gardens, offering a refined and long-lasting display. Its structural form showcases each bloom beautifully, while the subtle markings draw the eye in for a closer look. Iris 'Imperial White' also provides interest for pollinators, adding gentle movement to your waterside plantings. Whether clustered in groups for maximum impact or combined with other Japanese water irises and ornamental grasses, Iris 'Imperial White' adds a touch of classic sophistication and serene beauty, ensuring it remains a favourite feature in any late spring or early summer garden.
Perfect companions
Key features
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Good for cutting
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Perfect for pots
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Comes back every year
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Fragrant
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Loved by pollinators
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Naturalising
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Thrives well in full sun
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In peat-free compost
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Low maintenance
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Fully hardy
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Rodent resistant
Specs & details
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Botanical name
Iris ensata 'Imperial White'
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Flower colour
White, cream
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Plant size
1
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Established height
50-70cm
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Established spread
50-70cm
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Plant spacing
10 plants per m2
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Leaf colour
Green
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Habit
Upright
Clump-forming -
Life cycle
Perennial
Naturalising -
Hardiness
Fully hardy
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Years to establish
1-2 years
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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
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Soil moisture
Damp
Boggy -
Soil type
Loam
Sandy
Clay
Loam-based compost
Multipurpose compost -
Growing skill
Easy to grow
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Scented
No
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Pollinator-friendly
No
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Mouse resistant
Yes
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Rabbit resistant
Yes
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Deer resistant
No
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Toxicity
Skin/eyes irritant
Harmful if eaten
Plant calendar
| Jan | Feb | Mar | Apr | May | June | July | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
- Planting
- Flowering
Useful information
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Soak the Iris ensata 'Imperial White' roots in water for 3-6 hours prior to planting
Plant your Japanese water iris bare roots into temporary pots with a multipurpose compost within a week of delivery 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. Some varieties are a length of root which should be planted lengthways and shallowly (1-2cm deep).
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.
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Orders placed until 29 February 2027
You can expect your order in February/March 2027Orders placed 1 March - 15 April 2027
You can expect your order in March/April 2027Orders placed 16 April - 15 May 2027
You can expect your order within 10 business days
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