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Iris sibirica Weisser Orient - Siberian Iris

Iris sibirica Weisser Orient
Siberian Iris, Siberian Flag

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This plant carries a 12 months recovery warranty

More information

The Siberian iris 'Weisser Orient' will brighten up your flower beds and borders in spring with its white flowers enhanced by a golden yellow heart. In the sun or partial shade, it adapts to any soil that is not too dry, with a preference for moist to wet soil. It is a perennial young plant that is easy to grow and requires little maintenance.
Flower size
15 cm
Height at maturity
70 cm
Spread at maturity
50 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -34°C
Soil moisture
Moist soil, Damp soil
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Best planting time April, October
Recommended planting time February to April, September to November
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Flowering time May to June
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Description

Iris sibirica 'Weisser Orient' will illuminate your borders and flower beds in spring with its white flowers enhanced by a golden yellow heart. In full sun or partial shade (in the warmest regions), it adapts to any soil that is not too dry, with a preference for moist to wet soils. It is a perennial plant that forms a clump of green, upright leaves and requires little maintenance.

 

Iris sibirica is a rhizomatous perennial and deciduous plant of the Iridaceae family. In its natural state, it grows on heathlands and wet meadows in central and eastern Europe, northeastern Turkey, and Russia. In France, it is considered an endangered and protected species. The varieties offered are mainly the result of hybridisation between I. sibirica and I. sanguinea. Their flowers are generally larger and display a wide range of colours.

This Siberian iris is robust. It is an easy-to-care-for perennial plant that was obtained by Steiger in 1958. Since then, it has been brightening up flower beds and borders alongside other perennial plants that prefer moist soil. Its green, narrow leaves form a clump about 50 to 60cm (20 to 24in) in all directions. In May-June, tall stems bear flowers composed of three sepals and three petals associated with stigmas, forming a flower with a truly unique appearance. The sepals of the 'Weisser Orient' variety are white with yellow spots in their centre. The rest of the flower is pure white.

In the garden, Siberian iris 'Weisser Orient' brings light to flower beds and borders. Combine it with other perennial plants that prefer moist soil, such as 'Jannick's Choice' daylily with yellow-green flowers and 'Blue Melody' camassia with blue flowers. It will create a sensation at the edge of a pond or basin, either alone or with other Siberian irises: 'Caesar's Brother' with blue flowers and 'Tipped in Blue' with bicoloured blooms in blue and yellow. Its flowers make beautiful bouquets.

Flowering

Flower colour two-tone
Flowering time May to June
Inflorescence Solitary
Flower size 15 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green

Plant habit

Height at maturity 70 cm
Spread at maturity 50 cm
Growth rate normal

Botanical data

Genus

Iris

Species

sibirica

Cultivar

Weisser Orient

Family

Iridaceae

Other common names

Siberian Iris, Siberian Flag

Origin

Cultivar or hybrid

Planting and care

'Weisser Orient' appreciates rich, moist, preferably acidic to neutral soils. In heavy soil that is at risk of becoming waterlogged, plant your iris on a small mound. Add a good amount of well-rotted compost at the time of planting. If your soil is alkaline, adding some ericaceous soil will help acidify it. Even though it prefers moist soils, it is capable of withstanding short periods of drought once established. Choose a sunny or partially shaded location (especially in warmer climates). It needs its daily dose of sunlight (at least 6 hours) to bloom.

In terms of maintenance, it is a relatively easy plant to care for. Simply cut the flower stalks at the base after flowering and remove the dry foliage as soon as it is no longer decorative. Cut it and leave it in place as mulch.

Planting is usually done during the dormant period, from late September to mid-April, outside of frost periods. In warm climates, plant as early as September, while in regions with cold winters, wait until late March or early April. In this case, your irises will only bloom the following year. Plant the rhizomes at a depth of 3 to 5cm (1 to 2in). Siberian irises can remain undivided in place for a good ten years. When the clump no longer blooms in the centre or forms a crown, it is then time to divide. The ideal period is the end of winter, in February-March.

Planting period

Best planting time April, October
Recommended planting time February to April, September to November

Intended location

Suitable for Meadow, Pond edge
Type of use Border, Edge of border
Hardiness Hardy down to -34°C (USDA zone 4) Show map
Ease of cultivation Beginner
Planting density 6 per m2
Exposure Sun, Partial shade
Soil pH Acidic, Neutral
Soil type Clayey (heavy), Silty-loamy (rich and light)
Soil moisture Moist soil, Damp soil, rich, moist or even damp

Care

Pruning instructions The yellowed foliage can be cut back to 3 to 5cm (1 to 2in) from the soil and left in place as mulch in the autumn. If you find it decorative, keep it and trim it before the arrival of new leaves.
Pruning Pruning recommended once a year
Pruning time February, November
Disease resistance Very good
Overwinter Can be left in the ground

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