Iris versicolor Kermesina - Water Iris
Iris versicolor Kermesina - Water Iris
Iris versicolor Kermesina
Blue Flag, Boston Iris
Planted in May on the bank of a stream, the irises have grown well but have not flowered. I’m waiting for next June.
Pascale, 10/11/2025
More information
Back-to-school special offer!
Get €10 off for every €50 you spend! And get up to €40 off on a single order.
How does it work?
1. Shop your favourites
Add your favourite plants to your basket. For every €50 you spend (excluding delivery charges, store credit and the plastic-free option), you’ll receive a €10 voucher.
€50 spent = €10 voucher
€100 spent = €20 voucher
€150 spent = €30 voucher
€200 spent = €40 voucher
2. Place your order
Once your basket reaches one of the spending thresholds, place your order. You can even choose your delivery date!
3. Receive your voucher
As soon as your order has been shipped, you’ll receive an email containing your personal voucher code and its value.
4. Use it on your next order
Your voucher is valid for 90 days from the date you receive it. It can be used once only, on a new order worth at least the value of the voucher, excluding delivery charges.
Please note: Vouchers can be combined with other offers, but cannot be split or refunded.
Home or relay delivery (depending on size and destination)
Important: You may be charged customs duties by your country’s customs authorities upon delivery.
Schedule delivery date,
and select date in basket
This plant carries a 12 months recovery warranty
More information
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.
Would this plant suit my garden?
Set up your Plantfit profile →
Description
Iris versicolor 'Kermesina' is a perennial rhizomatous plant for wet areas with intriguing flowering, textured with white.
Belonging to the large Iridaceae family, the type variety is native to the large wet plains and marshes of North America. It is common in carex meadows, swamps, and along riverbanks. It is also one of the few native species that can be cultivated without difficulty. In spring, the deciduous ensiform (sword-shaped) leaves grow to a width of 2.5cm (1in), followed very quickly by the flowering. This flowering occurs from May to July, with 5 to 6 velvety-textured flowers per stem, reaching a height of 60cm (24in). Petals, sepals, and styles are delicately reticulated with a plum colour and white. The sepals are scalloped with yellow-green at their base. Narrow and horizontal at the base, they suddenly widen into a triangular, elegantly curved section. The flowers are medium-sized, approximately 10cm (4in) in width. They have a very light powdery fragrance typical of irises, but less pronounced than in their counterparts.
Iris versicolor 'Kermesina' thrives in full sun or partial shade. As a pond plant, it will reach its full potential with its feet in 5 to 10cm (2 to 4in) of permanent water. Unlike I. germanica, which does not like excess water, this one particularly seeks it. In any case, it is one of the species best adapted to cultivation in wet and humus-rich soils. It is very easy to cultivate and, once established, is very hardy and requires little maintenance. The plants need two years before the first flowering, but the highly cut-out silhouette of its inflorescences and its wild freshness are well worth the wait. Afterwards, the rhizomes can be divided every three years. At the end of flowering, cut back the stems. You can reintroduce it to its natural environment. I. versicolor can be found in carex meadows. You can vary the colours and shades of the different varieties of this grass. On the edge of a pond, consider planting with other water irises, such as I. pseudacorus, I. chrysographes 'Black Knight', and then introduce concentric circles of purple or pearly astilbes, Provence canes, and bearded irises. They all love pond edges.
Everything refers to colour in the denomination of the 'Kermesina' variety. In Greek mythology, Iris was the messenger between Earth and the gods of Olympus. Today, with more than 200 varieties in a wide spectrum of colours, the iris proudly bears the name that designates the rainbow in Greek. Closer to us, I. versicolor designates a plant whose colours fluctuate. 'Kermesina' simply means crimson or violet with a hint of red, and describes plant varieties whose flowers have this colour.
{$dispatch("open-modal-content", "#customer-report");}, text: "Please login to report the error." })' class="flex justify-end items-center gap-1 mt-8 mb-12 text-sm cursor-pointer" > Report an error about the product description
Iris versicolor Kermesina - Water Iris in pictures
Flowering
Foliage
Plant habit
Botanical data
Iris
versicolor
Kermesina
Iridaceae
Blue Flag, Boston Iris
North America
Planting and care
Although growing in marshes, waterlogged meadows or even with its feet in the water, this iris thrives well in slightly moist garden soil.
Planting period
Intended location
Care
Planting & care advice
-
, onOrder confirmed
Reply from on Promesse de fleurs
Recently viewed products
Haven't found what you were looking for?
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.