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Iris Profond Mystère - Bearded Iris

Iris germanica Profond Mystère
German Iris, Bearded Iris

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This well-contrasted iris displays large bicolour flowers with slightly wavy, light blue petals and horizontal violet sepals edged with light purple, featuring thick coppery orange beards. This late variety has a sturdy habit and balanced flower stalks with low branching, allowing it to better withstand rain and wind. 
Flower size
10 cm
Height at maturity
80 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 September to October
Recommended planting time February to March, July to October
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Flowering time May to June
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Description

Iris 'Profunde Mystère' is a recent variety of tall bearded iris with contrasting spring flowers. It has large, perfectly formed bicolour, slightly wavy flowers, with very light blue, upright petals, and almost horizontal velvety, deep violet sepals bordered with light violet. This variety has stout flower stalks, with low and well-distributed branching. Its flowers appear towards the end of the iris season. It is ideal in a mass planting or on slopes.

 

Iris 'Profunde Mystére' is a rhizomatous and deciduous perennial plant, with an upright tufted habit belonging to the Iridaceae family. It is one of many cultivars obtained over centuries, the controversial origin of which is debated around the number of chromosomes of potential ancestors. It should be noted that bearded irises have European origins. 'Deep Mystery' will reach 80 cm (32in) high when in flower, with numerous buds to guarantee a long flowering period, and the clump will spread indefinitely over time, with the central rhizomes becoming bare in favour of the outer rhizomes. It forms an elegant upright clump. The foliage consists of long sword-shaped, glaucous green leaves with prominent veins. Floral stems appear in April, with 6 to 7 flowers per stem in May, blooming from the top to the bottom. The contrasting colouration of this plant attracts attention, enhanced by the texture of the petals and sepals. The decorative beards of the 'Deep Mystery' iris are thick and range from burnt orange to copper-orange.

Bred by Cayeux in 2017. 

To accompany irises, plants should be chosen to match their needs (exposure, soil, etc.), growth (low-growing or light foliage plants), decorative appearance and flowering time. For example, Gaura will provide little shade to irises and keep the faded iris bed attractive throughout the summer. California poppies and love-in-a-mist will be happy with dry and poor soil, just like the irises. Blood-red cranesbill geraniums, salvias, and Libertias also complement irises very well. Slopes and terraced edges can be stabilised by dense plantings of old varieties that require little care. If the goal is more decorative and there is access for maintenance, more modern varieties can be chosen that are less likely to be knocked over by rain or wind.

Flowering

Flower colour two-tone
Flowering time May to June
Inflorescence Cluster
Flower size 10 cm

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Plant habit

Height at maturity 80 cm
Spread at maturity 40 cm
Growth rate normal

Botanical data

Genus

Iris

Species

germanica

Cultivar

Profond Mystère

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, warm location,dry in summer?
This is the ideal location for irises! In the shade, they grow but do not bloom. They are hardy and do not need winter protection. Well-drained soil is perfect, even dry and chalky. Soil that is too wet promotes rhizome rot. Plant from July to September to allow the rhizome to grow and develop new roots before winter. They should be planted as soon as they are purchased for the best results. Plan to divide irises about every 4 years to give them fresh soil. They are vigorous and need space to develop and bloom well. Plant with a spacing appropriate to the size and vigour of the variety: about 34-50 cm (13-20in) for tall ones. In a monochrome planting, the rhizomes are planted in staggered rows. To create a mix of colours, plant them in groups of several stems of the same variety. Always take into account the direction of growth of the rhizomes by arranging them in a star shape, with buds and leaves facing outward, and spacing them well away from other varieties so they have room to develop.

Planting:

Dig a hole that is wide and deep enough. Make a conical mound of soil in the hole and place the rhizome and spread out the roots on top. Cover the roots. The rhizome must be left just 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 clayey or damp soil, the rhizome can even be left raised on a slight mound. To make the soil cling to the roots, lightly firm and water abundantly after planting. Water 2-3 times if necessary until it takes root.

Maintenance:

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

Planting period

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

Intended location

Suitable for Meadow, Rockery
Type of use Border
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. Optionally, trim the foliage halfway down in the 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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