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Iris Storm Center - Bearded Iris

Iris germanica Storm Center
German Iris, Bearded Iris

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Beautiful iris plant even though it's in a small pot, the leaves are already 20 cm long. I can't wait to see it bloom.

Mireille T., 10/02/2024

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More information

A tall Garden Iris with ruffled, silky dark blue-violet flowers of a very consistent shade in May. The beards are also dark blue-violet. Its well-branchedfloral stems reach a height of 95 cm (37in).
Flower size
10 cm
Height at maturity
95 cm
Spread at maturity
40 cm
Exposure
Sun
Hardiness
Hardy down to -15°C
Soil moisture
Dry soil, Moist soil
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Best planting time August to September
Recommended planting time February to March, July to October
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Description

Iris 'Storm Center' is a variety of Iris with real elegance, whose flowering stems carry large and beautiful flowers of particularly deep violet. Its large flowers are slightly ruffled and silky in texture and uniform in colour with matching beards. Among the tallest, it will work well alongside pastel blooms.

'Storm Center' Iris is a perennial rhizomatous plant that forms upright clumps. Its deciduous foliage disappears in autumn and reappears in spring. This plant belongs to the Iridaceae family. It is one of the many cultivars obtained over centuries, whose controversial origin is discussed around the number of chromosomes of potential ancestors. Note that Garden Irises have European origins.

The 'Storm Center' Iris is a tall variety, reaching 95 cm (37in) in height when flowering. It will sometimes be necessary to stake it, as its flower stems are affected by wind and rain. Each rhizome produces a well-branched stem that carries numerous flower buds. The clump will spread very quickly, with no theoretical limit over time, with the central rhizomes thinning out in favour of the outer rhizomes. The foliage consists of long sword-shaped, glaucous green, strongly veined leaves. Floral stems appear in April and produce flowers in May, in the middle of the season for tall irises, blooming from the top to the lower branches. The deep colour of this plant is, magnified by the silky texture of the petals and sepals

Schreiner 1979 hybridization - Award: Honorable Mention in 1981

To accompany irises, choose plants to associate with them based on their needs (exposure, soil...), their vegetation (low plants or light foliage), and their decorative appearance and flowering time. For example, Gauras will cast little shade on the irises and will keep the faded iris bed attractive throughout the summer. Eschscholzia will be happy with dry soil like the iris. Geraniums, perennial salvias, and Libertia also accompany irises very well. Slopes and terraced edges will be stabilised by a dense planting of old diploid varieties that require little care. If the goal is more decorative and access for care is possible, choose more modern varieties, for example, intermediates that are less likely than tall ones to be laid flat by the wind and rain.

At the foot of a very sunny wall, sheltered from the wind, tall irises can be used. They can be planted in the background of shorter and earlier varieties. The vegetable garden can accommodate a few clumps of irises for cut flowers.

Iris Storm Center - Bearded Iris in pictures

Iris Storm Center - Bearded Iris (Flowering) Flowering

Flowering

Flower colour violet
Flowering time May
Inflorescence Cluster
Flower size 10 cm

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Plant habit

Height at maturity 95 cm
Spread at maturity 40 cm
Growth rate normal

Botanical data

Genus

Iris

Species

germanica

Cultivar

Storm Center

Family

Iridaceae

Other common names

German Iris, Bearded Iris

Origin

Cultivar or hybrid

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Planting and care

Do you have a sunny location, sheltered from the wind, warm and rather dry in the summer?
This is the ideal location for planting tall bearded irises! In the shade, they grow but do not flower. They are hardy and do not need winter protection. Well-drained soil is perfect, even rather dry. German iris prefers chalky soil: add lime if it tends to be acidic. Excessively wet soil promotes rootstock rot. Plant from July to September. This allows the rootstocks to grow and develop new roots before winter. They should be planted immediately after purchase, for best results. Plan to divide irises every 4 years or so to give them fresh soil. They have vigorous growth and require space to develop and flower well. Plant with spacing appropriate to the size and vigour of the variety: approximately 34-50 cm (13-20in) for tall varieties. In a monochromatic planting, the rootstocks are planted in a staggered pattern. To create a mix of colours, plant them in groups of several plants of the same variety. Always consider the direction of growth of the rootstocks by arranging them in a star shape, with buds and leaves facing outward, and spacing them away from other varieties so they have room to develop.

Planting

Dig a hole that is wide and deep enough. Create a wide conical mound of soil on which to place the rhizome and spread out the roots. Cover the roots. It is important that the rhizome be left slightly above the surface of the soil. It should not be planted in a dip (risk of rot), so anticipate that the soil will settle and the iris will sink. In clay or wet soil, the rootstock may even be left elevated on a slight mound of a few centimetres. To make the soil adhere to the roots, lightly firm the soil and water abundantly immediately after planting. Water 2-3 times if necessary until it is established.

Maintenance:

Keep the soil weed-free by lightly hoeing, taking care not to damage the rhizomes or roots. Weeds shade the irises, retain moisture (causing rot), and attract slugs. Similarly, remove dry leaves. If they are diseased (reddish-brown bordered spots from heterosporiosis), burn them. Remove faded flowers.

Planting period

Best planting time August to September
Recommended planting time February to March, July to October

Intended location

Suitable for Meadow, Rockery
Type of use Border, Slope
Hardiness Hardy down to -15°C (USDA zone 7b) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Dry soil, Moist soil, Well-drained soil

Care

Pruning instructions Cut the stems at the end of the flowering period. If desired, cut the foliage diagonally halfway in summer.
Pruning Pruning recommended once a year
Pruning time July to August
Disease resistance Good
Overwinter Can be left in the ground
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