Dahlia Siemen Doorenbos
Dahlia Siemen Doorenbos
Dahlia Siemen Doorenbos
Dahlia Siemen Doorenbos
Dahlia
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Luce L., 18/06/2019
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This plant carries a 6 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
The Dahlia 'Siemen Doorenbos' is a variety of anemone-flowered dahlia whose flower is reminiscent of the charm and refinement of Japanese anemones, with which it could form beautiful associations. Not very tall but generous, the plant does not require staking and produces an abundance of precious flowers in a slightly mauve pink adorned with a tight and crumpled heart of white-cream colour, sometimes touched with violet and yellow. This old variety, now difficult to find in horticultural trade, always seduces with the spontaneity of its flowering, which extends from summer to the first frost. Perfect in a romantic garden!
Dahlias are herbaceous plants with tubers from the large family of asteraceae. They are originally from the high plateaus of Mexico. Currently, the roughly 25,000 horticultural varieties obtained by humans have invaded gardens worldwide. Dahlias are classified according to the shape of their flower. Introduced in 1943, 'Siemen Doorenbos' is classified in the category of decorative Dahlias with anemone-like flowers. In this group, the coloured ligules of the head are arranged in pompoms and surrounded by a collar of wider petals. In this Siemen Doorenbos variety, the heads are 10 cm (4in) in diameter and the outermost ligules are tubular, arranged in a simple collar of lavender-pink colour. Those in the centre are shorter, slightly fringed, white-cream tinged with yellow at the base. They turn purple-violet at the tip and are tightly packed together like a small cushion. The flowering takes place from the end of June to October. The plant will reach about 60 cm (24in) in height, with a bushy and dense habit. The very branched stems are hollow and the leaves are opposite and divided into denticulate leaflets. The leaves and stems are of a medium green colour.
To promote new blooms and extend the flowering period, make sure to remove faded flowers. Even better, regularly create attractive, colourful bouquets by combining various varieties. Emphasise the romantic and precious character of this 'Siemen Doorenbos' variety by associating it with asters, Japanese anemones, fine grasses, Calamagrostis, Eragrostis, Stipa pennata, or Molinia. The flowering of cannas and Echinaceas is perfect when accompanied by Dahlias, as they occur simultaneously, as well as the flowering of cosmos or shrubby salvias.
As the star of cottage gardens, Dahlias are undoubtedly beautiful flowers. They are perfect in flowerbeds but can also enhance the vegetable garden. In Mexico, this tuberous plant was first cultivated as a root vegetable for consumption. Its poor taste relegated it to the rank of ornamental plant. Since then, the interest in their beautiful exuberance has never waned.
Dahlia Siemen Doorenbos in pictures
Plant habit
Flowering
Foliage
Botanical data
Dahlia
Siemen Doorenbos
Asteraceae
Dahlia
Cultivar or hybrid
Planting and care
The 'Siemen Doorenbos' Anemone Dahlia is easy to grow in all regions. For abundant flowering, it is good to follow a few simple rules, plant the tubers in a sunny location as soon as the last frost has passed, rich, fresh, and well-drained soils are perfect. However, stagnant moisture would promote tuber rot. Feel free to amend the soil with compost and sand if necessary. Work the soil deeply and enrich it, for example, with crushed horn or dehydrated blood. Place your tuber and crumble the soil well to fill the hole without air pockets. Your dahlia should be covered with about 6 cm (2in) of soil. At the end of planting, water abundantly once and then regularly for the first 6 weeks to help with rooting.
Dahlias are sensitive to cold, they need to be overwintered under shelter. In November, the first frosts blacken the foliage, so it is time to dig them up. Carefully unearth the tubers. Remove as much soil as possible. Let the foliage dry so that the tubers can replenish their reserves. Then cut the stems down to 10 cm (4in). Spread your bulbs in a crate on newspaper. Store them protected from frost in a dry, cool, and dark place, such as a frost-free garage or an attic. In the southern regions, close to the coast, where there are few frosty days per year, it is possible to leave them in place. In this case, simply cover the ground with a layer of leaves or straw for protection.
This variety, with its sturdy stems, generally does not require staking.
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.