Iris Azurea - Dwarf Iris
Iris Azurea - Dwarf Iris
Iris Azurea - Dwarf Iris
Iris Azurea - Dwarf Iris
Iris Azurea - Dwarf Iris
Iris lutescens x pumila Azurea
Dwarf Iris
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Description
'Iris 'Azurea' is a dwarf iris with beautiful light blue flowers early in the season. Its flowers are large compared to the height of the plant, and it quickly forms lovely, tenderly coloured clumps, perfect for creating a beautiful spring decoration in rockeries, planters, borders, and on large slopes.
Iris Azurea is a small rhizomatous perennial plant from the iridaceae family. Its origin is somewhat uncertain, listed in England by Cilbran since 1881, this variety seems to be the result of hybridization between Iris pumila, which blooms in rocky lawns in central Europe and Asia, and Iris lutescens, endemic to limestone lawns and scrubland in Mediterranean regions. These two dwarf irises have produced many horticultural cultivars classified in the category of Lilliputs or Rock Garden Iris.
Iris Azurea forms small, deciduous upright clumps from spring. The plant will reach 13 cm (5in) high when flowering, and the clump will spread without a theoretical limit over time, with the central rhizomes becoming bare in favour of the outer rhizomes. The foliage consists of thin, long, sword-shaped, a slightly glaucous green leaves. Short flower stems appear in March and bloom in April, earlier or later depending on the climate. The flower stem usually bears a solitary flower at its tip. The 4 to 5 cm (2in) tall flower consists of three upright, very light blue petals, above three drooping, silvery blue sepals veined with grey. The beards are cream white.
To accompany irises, choose plants based on their needs (exposure, soil...), growth (low-growing plants or light foliage), decorative appearance and flowering time. For example, Gaura will provide little shade and keep the faded iris bed attractive throughout the summer. Eschscholzia will be satisfied with the same dry and poor soil as the iris. Geraniums, salvias, and Libertia also accompany irises very well. Slopes and terraced edges can be stabilised by a dense planting of old diploid varieties that require little care.
Use the full range of irises for rockeries, stony and dry meadows, limestone plateaus, rocky slopes, and green roofs. Border edges are the domain of border irises, but you can also use dwarf irises!
Iris Azurea - Dwarf Iris in pictures
Flowering
Foliage
Plant habit
Botanical data
Iris
lutescens x pumila
Azurea
Iridaceae
Dwarf Iris
Cultivar or hybrid
Planting and care
Do you have a sunny, warm location, rather dry in summer?
This is the ideal location for Azurea dwarf 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 dry and chalky. Soil that is too wet promotes rhizome rot. Plant from July to September to allow the rhizomes 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 the irises every 4 years or so to give them fresh soil. They are vigorous and need space to develop and flower well. Plant with a spacing adapted 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 plants of the same variety. Always consider 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 that they have room to grow.
Planting
Dig a hole that is wide and deep enough. Make a conical mound of soil in the hole, place the rhizome and spread out the roots. Cover the roots. It is important for the rhizome to 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 create shade for the irises, retain moisture (causing rot), and attract slugs. Likewise, remove dry leaves. If they are diseased (reddish-brown bordered spots of heterosporiosis), burn them. Remove faded flowers.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.