Dahlia Downham Royal
Dahlia Downham Royal
Dahlia Downham Royal
Dahlia
lovely
Odile H., 03/09/2018
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Description
The Dahlia 'Downham Royal' is distinguished by the rare colour of its pompom-shaped flowers. They are a dark red-pink with hints of burgundy, a shade intensified by a more violet centre; a palette of great richness for a flower that catches the eye and holds it. This variety is also generous, with its buds succeeding each other from summer to frost, produced abundantly by a medium-sized plant. A simply sumptuous dahlia in borders or bouquets, which can be combined with pink and mauve flowers.
Dahlias belong to the asteraceae family and are originally from the high plateaus of Mexico. At present, the some 25,000 horticultural varieties obtained by humans have invaded, to our great pleasure, gardens all over the world.
The 'Downham Royal' variety will measure about 1m (3ft) in height and 60cm (24in) in diameter after 3 to 4 months of cultivation. It is classified as a pompom dahlia; this is a horticultural category defined by the shape of the flower. In this group, the heads are very compact, of modest size, but produced abundantly, and the tubular ligules form a perfectly spherical inflorescence that has a honeycomb-like structure. The flowers of 'Downham Royal' are 7cm (3in) in diameter. The ligules are a beautiful, indescribable pink-red, while those in the center of the inflorescence appear violet. The golden heart of the flower only appears late, just before fading. The flowering takes place from July to October-November. The habit is bushy and upright. The very branched, long and sturdy stems are hollow and the leaves are opposite, pinnately divided, meaning they are divided into 3 or 5 very toothed lobes. The leaves and stems are a medium green.
To encourage repeat flowering, take care to remove faded flowers, or better yet, regularly make large colourful bouquets by combining it with other varieties. 'Downham Royal' produces beautiful flowers in bouquets, in the company of single or pompom varieties, white, pink or mauve. This variety goes particularly well with the pink flowers of English roses and the mauve colour of asters, and stands out beautifully against the silver foliage of cineraria maritima or shrubby wormwoods. In borders, this dahlia will create colourful spots in the company of echinaceas, for example, which bloom at the same time. This variety with its long, very flowery stems allows bouquets to be enjoyed until late in the season.
The star plant of borders and herb gardens, dahlias confidently accompany the most beautiful flowers but are also appreciated alongside vegetable plants. In Mexico, this tuberous plant was first cultivated as a root vegetable for consumption. But its poor taste qualities assigned it the status of an ornamental plant. Since then, the interest in their beautiful exuberance has never waned.
Dahlia Downham Royal in pictures
Plant habit
Flowering
Foliage
Botanical data
Dahlia
Downham Royal
Asteraceae
Dahlia
Cultivar or hybrid
Planting and care
The Dahlia 'Downham Royal' 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, moist, and well-drained soil is 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 blood, fish and bone. Place your tuber and crumble the soil well to fill without air pockets. Your dahlia should be covered with about 6 cm (2in) of soil. At the end of planting, water once abundantly, then regularly renew this watering during the first six weeks to help with rooting. Dahlias are sensitive to cold, so they need to be overwintered. In November, the first frosts blacken the foliage, which is the time to dig them up. Carefully unearth the tubers and remove as much soil as possible. Let the foliage dry so that the tubers can replenish their reserves. Then cut the stems to 10 cm (4in). Spread your bulbs in a crate on newspaper. Store them away from frost in a dry, cool, dark place like a frost-free garage or attic. In milder regions, where there are only a few days of frost per year, it is possible to leave them in place. In this case, cover the ground with a layer of leaves or straw for protection.
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.