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Arnica chamissonis
Arnica chamissonis
Arnica chamissonis
Arnica chamissonis
Arnica chamissonis
Arnica chamissonis
Water arrived a little tired during this lockdown period where postal distribution only happens once a week at our place; and already planted, with a little water and love, it will work out... Variety to definitely have in one's garden.
gilles, 04/04/2020
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Dispatch by letter from €3.90.
Delivery charge from €5.90 Oversize package delivery charge from €6.90.
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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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Arnica chamissonis is native to the American West. It is both a botanical treasure and a robust rhizomatous perennial with large basal leaves in a rosette. This medicinal plant, closely related to the famous Arnica montana, displays a radiant flowering in the summer with golden yellow heads. It is easier to cultivate in lowland areas and offers a better yield than its European cousin.
The Plains Arnica belongs to the Asteraceae family. It is native to the mountains of the American West. It is found in the wild, growing along prairies and streams. This perennial plant has a rosette habit, reaching 50 cm (20in) when in bloom, and spreads rapidly to a diameter of 50 cm (20in). Flowering occurs in June-July. The stems, with opposite leaves, bear intense yellow heads resembling small sunflowers. Deeply rooted and spreading through rhizomes, the plant develops clusters of reasonably narrow, hairy, bright green leaves in spring. After a nectar-rich flowering, the plant produces seeds commonly used in herbal medicine, similar to the seeds of Arnica montana. Arnica is apomictic, which means that the formation of seeds is initiated through asexual reproduction by spontaneous division of the gametes before the flowering phase. This implies that pollination is not necessary for the production of viable seeds, and each seed is capable of giving rise to a plant that is identical to the mother plant.
Arnica chamissonis thrives best in soil that is light and occasionally damp, enriched with humus, and slightly acidic to neutral. However, it cannot tolerate limestone. It can be grown in regular soil lightened with turf and coarse sand. For abundant flowering, it requires full sun exposure.
American Arnica is a highly ornamental medicinal plant that thrives in herb gardens, near water sources, and turf moors.
Arnica chamissonis and Arnica montana are two plants that have similar chemical compositions and are used for therapeutic purposes. German and European pharmacopoeias consider Arnica chamissonis as effective as Arnica montana. However, Arnica chamissonis is easier to cultivate and more productive. As a result, in the future, it is likely that Arnica chamissonis subsp. foliosa will be grown instead of relying on Arnica montana for herbal medicine.
Arnica chamissonis in pictures
Flowering
Foliage
Plant habit
Botanical data
Arnica chamissonis prefers light, cool, even occasionally soggy, humus-bearing, slightly acidic to neutral soil (PH between 6 and 7.2). This plant does not tolerate limestone. However, it can be grown in ordinary soil lightened with peat and coarse sand. For healthy growth, plants need a minimum of 20 cm topsoil. They can withstand temperatures down to -45°C. They require full sun to produce abundant flowers.
Planting period
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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).
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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 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:
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.