Iris ensata Sensation - Japanese Water Iris
Iris ensata Sensation - Japanese Water Iris
Iris ensata Sensation - Japanese Water Iris
Iris ensata Sensation
Japanese Water Iris, Sword-leaved Iris, Butterfly Iris
I'm not sure I'll see any flowers before 3 or 4 years if it takes that long.
Marie-Hélène G., 17/09/2017
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This plant carries a 12 months recovery warranty
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
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Description
Iris ensata, better known as Japanese Iris, have nothing in common with our classic garden irises. They thrive in full sun or partial shade, in moist to wet soils. The flowers, measuring 10 to 15cm (4 to 6in) in diameter, are composed of 3 large flat sepals topped with 3 finer petals. There are numerous cultivars with pink, violet, blue, white flowers... some of which have sepals that are occasionally striped or speckled with black, blue or violet.
Often cultivated on the banks of ponds and basins, Iris ensata, like many marsh plants, can tolerate having their "feet" in water during the summer, but do not tolerate being submerged during the winter, especially if it is freezing. Plant them in a heavy soil that forms a slight depression, at the bottom of a slope or on a bank where the soil becomes moist through capillarity.
The 'Sensation' variety has 12cm (5in) diameter flowers, violet with crimson reflections and maculated with gold at the centre. They bloom at the end of summer, reaching a height of 90cm (35in) for a good 3 weeks between June and July.
Cultivate this variety in moist soil, alongside Anemone rivularis, Astilbes, Lysimachias and Ligularias.
Iris ensata Sensation - Japanese Water Iris in pictures
Flowering
Foliage
Plant habit
Botanical data
Iris
ensata
Sensation
Iridaceae
Japanese Water Iris, Sword-leaved Iris, Butterfly Iris
Planting and care
Iris ensata plants like a damp and marshy soil, without limestone. They also tolerate a fresh soil, even if it is not waterlogged, as long as it does not dry out in summer. On the other hand, they prefer a rather dry soil in winter. We have planted them near an artificial stream, with the water level kept high during the summer. In winter, we let the level drop by about 15cm (6in), so that the stumps are above the water, as in nature where the level of rivers decreases in winter and rises again in spring with the melting of snow. Their cold resistance is excellent up to approximately -18°C (-0.4°F). It is further increased if the soil is dry.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
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