Iris germanica Ola Kala - Bearded Iris
Iris germanica Ola Kala - Bearded Iris
Iris germanica Ola Kala - Bearded Iris
Iris germanica Ola Kala
German Iris, Bearded Iris
3 Iris purchased in pots, arrived in very good condition (with beautiful roots), planted immediately in the ground. 15 days later my young plants are starting to produce new leaves (I hope they're not expending too much energy creating leaves in autumn and that they'll be beautiful in spring????)
Julie, 02/10/2025
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Available in 2 sizes
Available in 2 sizes
Available in 2 sizes
Available in 2 sizes
Available in 2 sizes
Available in 2 sizes
Available in 3 sizes
Available in 2 sizes
Available in 2 sizes
Available in 2 sizes
This plant carries a 12 months recovery warranty
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
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Description
Iris germanica Ola Kala, sometimes called German Iris or Bearded Iris, is a variety of large Iris that proudly displays its colour: a very bright yellow. Absolutely stunning in its simplicity!
Immortalised by the great impressionists Van Gogh and Monet, Iris germanica, along with Nymphaea, is one of the most famous flowers in the world. It owes its popularity to both to their pictorial works and its unique design, further enhanced by its monochrome colour: a magnificent, very bright yellow.
Originally horticultural and belonging to the Iridaceae family, Iris germanica Ola Kala is a perennial plant with fleshy rhizomes. Its broad, sword-shaped leaves contrast with the crumpled appearance of its flowers, which are perched on sturdy stems. Together, they form a clump with upright stems that reach 90 cm (35 in) in height.
The flowers of Iris germanica have the characteristic of forming three large upright petals and three silky, trailing sepals, called a "beard". Flowering lasts for a few weeks and occurs in May/June.
Maintenance is relatively simple: just cut the flowers as they fade and, once all are faded, cut the stem 10 cm (4 in) from the ground, and in autumn, remove the dry, dead leaves. After a few years, the rhizome you have planted will die, leaving behind beautiful offspring. It will then be necessary to remove the dead part and divide the new rhizomes and replant them in another part of the garden. This operation should be repeated every 4 years or so.
Vigorous and resistant, German Iris thrives in a sunny position, in rather dry, light, and well-drained soil. It is not afraid of cold or summer drought, its only enemy being persistent humidity, especially in heavy soils.
Stunning in a sunny flower bed, it is also highly valued for making bouquets.
In the garden, it easily finds its place in a perennial flower bed, but you can also plant it en masse for a very strong visual effect, alone or accompanied by an Iris of another colour, such as Iris germanica Obsidian. It is also a plant that can occupy a flowery space in the vegetable garden, in the spirit of the French Curé gardens.
Iris germanica Ola Kala - Bearded Iris in pictures
Flowering
Foliage
Plant habit
Botanical data
Iris
germanica
Ola Kala
Iridaceae
German Iris, Bearded Iris
Cultivar or hybrid
Planting and care
German Iris should be planted shallowly, leaving the rootstock exposed at ground level. Add sand when the soil is too heavy or too wet and place the rootstocks on small mounds. Ensure good drainage in the soil to prevent the iris from rotting. In summer, this iris should be watered 1 to 2 times a month. At the end of flowering, they should be pruned by cutting the flower stems 10 cm (4 in) above the ground. Damaged leaves should only be removed in autumn. It is not recommended to provide too much nitrogen as it weakens the plant and increases the number of leaves at the expense of flowers. The taller flower stalks become brittle. The iris can be susceptible to heterospory, a condition identified by brown oval spots. To prevent this, treat the iris with Bordeaux mixture at the beginning of the growing season. Every 4 years in summer, after flowering, divide the clumps by pulling up the entire plant. Transplantation should be done in an iris-free location for one year. Take the most beautiful young plants from the rootstock, usually those around the edges.
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).
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 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.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.
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