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Iris germanica Lark Ascending - Bearded Iris

Iris germanica Lark Ascending
German Iris, Bearded Iris

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Dwarfed and completely dried up rootstocks... I have my doubts even though I know the young plant is hardy...

Michel , 19/10/2022

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A majestic Garden Iris. Its large white and undulating flowers, slightly infused with yellow at the shoulders, welcome imposing mandarin beards. They stand at 1.1m (4ft) from the ground, in the middle of the iris season, in May. Each stem carries 8 to 9 buds, it has a reliable and long lasting flowering period.
Height at maturity
1.10 m
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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Flowering time May
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Description

Iris germanica 'Lark Ascending' is a large garden iris, offering a long and majestic flowering period with flowers of an almost pure white, animated by imposing mandarin beards. Its beautiful flowers, elegantly undulating, bloom in large numbers for almost 3 weeks, well distributed on very tall stems. This sculptural variety should be placed in the sun and protected from bad weather to preserve its flowering.

 

 

Iris 'Lark Ascending' is a rhizomatous perennial plant that develops in spring in elegantly upright clumps, with its foliage disappearing in winter. It belongs to the family of irises. It is one of the many cultivars obtained for centuries, whose controversial origin is discussed around the number of chromosomes of potential ancestors. It should be noted that Garden Irises have European origins. They are plants that thrive in limestone soils and require plenty of sunlight, with their rhizomes needing to "bake" in summer sun in order to flower. A minimum of 6 hours of sunlight per day is generally required.

 'Lark Ascending' will reach a height of 1m (3ft) 10cm (4in) when in bloom, with 8 to 9 double buds, and a guaranteed long flowering period. The clump will spread indefinitely over time, with the central rhizomes becoming bare in favor of the outer rhizomes. The foliage consists of long and wide sword-shaped leaves, a slightly glaucous green, with parallel veins. In April, flower stems appear, which will give tightly packed flowers in May, opening from the top towards the lower branches. The color of this plant is, as always with Garden Irises, enhanced by the iridescent texture of the upright petals and the trailing sepals. The beautiful and prominent mandarin orange beard adds to the appeal of this almost white, slightly yellow-tinted large flower.

Bred by Ben Hager, 1996.

 

To accompany the irises, low-growing plants or those with light foliage that complement the flowering and have compatible cultural requirements should be chosen. For example, Gaura will cast little shade on the irises and will keep the bed attractive throughout the summer. Eschscholzia will be content with a dry soil in summer, just like the irises. Geraniums, salvias, and Libertia also accompany irises very well. The vegetable garden can be adorned with a few clumps or borders of irises, as it is also a classic place for family flower cutting.

 

Iris germanica Lark Ascending - Bearded Iris in pictures

Iris germanica Lark Ascending - Bearded Iris (Flowering) Flowering

Flowering

Flower colour white
Flowering time May
Inflorescence Cluster

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Plant habit

Height at maturity 1.10 m
Spread at maturity 40 cm
Growth rate normal

Botanical data

Genus

Iris

Species

germanica

Cultivar

Lark Ascending

Family

Iridaceae

Other common names

German Iris, Bearded Iris

Origin

Cultivar or hybrid

Product reference855851

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Planting and care

Do you have a sunny location, sheltered from the wind, warm and rather dry in summer?
This is the ideal location for planting tall irises! In the shade, they grow but do not flower. Hardy, they do not need winter protection. Well-drained soil is perfect, even if it is rather dry. German irises require a limestone soil: amend your soil with lime if it tends to be acidic. Excessively wet soil promotes rhizome rot. Plant from July to September. This allows the rhizomes to grow sufficiently before being lifted, and to form new roots before winter. They should be planted as soon as they are purchased 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. They are planted with spacing appropriate to the size and vigor of the variety: about 34-50cm (13-20in) for tall ones (5 to 10 plants per square meter). In a monochrome planting, the rhizomes are planted in a staggered pattern. To create a mix of colors, it is recommended for the overall aesthetic of the iris bed to plant them in groups of several plants of the same variety. Always consider the direction of rhizome growth by arranging them in a star shape, with buds and leaves facing outward, and spacing them well from other varieties to give them room to grow.

Planting

Dig a hole that is wide and deep enough. Create a large conical mound of soil in the hole, on which the rhizome and spread-out roots are placed. Cover the roots. It is important that the rhizome is left just above the surface of the soil. It should not be planted under the soil (risk of rot), so anticipate that the soil will settle and the iris will sink. In clay or damp soil, the rhizome can even be left elevated on a slight mound of a few centimeters. To make the soil adhere to the roots, lightly tamp the soil and water thoroughly immediately after planting. Water 2-3 times if necessary until the plant establishes.

Maintenance:

Keep the soil weed-free by shallow 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 spots of heterosporiosis), burn them. Remove faded flowers.

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Planting period

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

Intended location

Suitable for Meadow
Type of use Border, Back of 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 flowering stems at the end of the flowering period. Optionally (it is not obligatory), cut the foliage halfway with an angled cut 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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