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Iris germanica Eclat de Nuit - Tall Bearded Iris

Iris germanica Eclat de Nuit
Bearded Iris

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A fairly compact variety (84 cm), mid-season, whose flowers contrast white petals finely veined with lavender against broad blackish violet sepals. The golden edges and orange-yellow beard warm up this very dark contrast. Plant its rootstocks in full sun, in rich, well-drained soil.
Height at maturity
84 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 July to October
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Flowering time May to June
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Description

The Iris 'Éclat de Nuit' is a recent French cultivar that stands out for its remarkably contrasting, theatrical and particularly luminous flower, with almost black violet sepals and petals where white dominates. Orange-yellow beards form a well of light at the centre of the flower. Of moderate height for a tall iris, it is a mid-season variety that benefits from being planted in small groups.

This tall bearded iris flowers in the middle of the garden iris season, in May, on stems 84 cm tall. Each flower consists of 3 white upper petals, traversed by fine lavender veins, discreetly edged with old gold, and 3 much darker trailing sepals: blackish violet, with a white spot under the beard, striped with blackish violet and crossed by a golden line. The orange-yellow beard attracts the eye at the centre of the corolla. Depending on the light, the sepals can appear very dark violet, plum-black or almost black, while the golden edge becomes more visible in sunlight.

Tall bearded garden irises have long ceased to be simple forms of Iris germanica in the strict botanical sense. They are horticultural varieties resulting from repeated cross-breeding between various bearded rootstock irises, selected for stem height, flower width, and varied colours. These plants require fairly rich, well-drained soil and sun, at least 6 hours a day.

'Éclat de Nuit' was obtained by Nicolas Bourdillon, in Sologne. It was registered in 2023 under the seedling number NB-17-42-20. Its parentage combines 'Edge Of Heaven' and 'Mixed Signals'. Its first cultivar name was 'Charismatique', very evocative, then it was registered under the name Éclat de Nuit. It is a seedling sibling of 'Anneau Céleste' and 'Mamie Denise', two other cultivars from the same cross.

The iris 'Éclat de Nuit' is placed in a sunny border or in the middle of a not-too-tall bed, rather than behind large perennials. Plant it in groups of 3 rootstocks spaced 35 to 40 cm apart; the clump will be more opulent after two or three years. The rootstocks should always be well exposed and protected from competition from other plants. Its colouring combines well with the Iris 'Haut les Voiles', Santolina chamaecyparissus, Love-in-a-mist 'Miss Jekyll Alba' and its blue version 'Miss Jekyll Blue'. Love-in-a-mists are sown directly, flower just after the irises and their very fine foliage does not shade them.

 

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Garden iris, bearded iris: planting, care
Family sheet
by Virginie T. 13 min.
Garden iris, bearded iris: planting, care
Read article

Flowering

Flower colour two-tone
Flowering time May to June
Inflorescence Spike
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Semi-evergreen
Foliage colour medium green

Plant habit

Height at maturity 84 cm
Spread at maturity 40 cm
Growth rate normal

Botanical data

Genus

Iris

Species

germanica

Cultivar

Eclat de Nuit

Family

Iridaceae

Other common names

Bearded Iris

Origin

Cultivar or hybrid

Product reference26120

Planting and care

Plant the iris ‘Eclat de Nuit’ from July to October. Choose a very sunny position, with at least six hours of direct sunlight per day, as shade significantly reduces flowering. Install it in fertile soil, neutral to calcareous, especially very well-drained; in clay soil, loosen widely and add gravel or coarse sand to avoid stagnant water around the rootstock. Place the rootstock almost at the surface, with the upper side visible to the sun, and bury only the roots. Space the young plants 30 to 40 cm apart. Water at planting, then only in case of prolonged drought in the first year. Remove faded flowers, cut spent flower stems at the base, and remove dry leaves at the end of winter.
Divide the rootstocks every three or four years, in summer, when the centre of the clump flowers less.

Planting period

Best planting time August to September
Recommended planting time July to October

Intended location

Suitable for Meadow
Type of use Border, Slope
Hardiness Hardy down to -15°C (USDA zone 7b) Show map
Ease of cultivation Amateur
Planting density 4 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 rich and well-drained

Care

Pruning instructions Cut the flower stalks after flowering. Optionally, cut the foliage on the slant halfway up in summer using pruning shears.
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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