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Dahlia Downham Royal

Dahlia Downham Royal
Dahlia

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lovely

Odile H., 03/09/2018

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This plant carries a 6 months recovery warranty

More information

This variety exhibits round, 7 cm (3in) in diameter, pompom-shaped flower heads, a remarkable colour, and a nuanced red-purple with violet at the centre. Standing 1 metre (3 feet) tall, this dahlia will be superb in flowerbeds or bouquets alongside pink and mauve flowers.
Flower size
7 cm
Height at maturity
1 m
Spread at maturity
60 cm
Exposure
Sun
Hardiness
Hardy down to -4°C
Soil moisture
Moist soil
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Best planting time March to April
Recommended planting time March to May
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Flowering time July to November
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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

Dahlia Downham Royal (Flowering) Flowering

Plant habit

Height at maturity 1 m
Spread at maturity 60 cm
Growth rate fast

Flowering

Flower colour violet
Flowering time July to November
Inflorescence Flower head
Flower size 7 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Botanical data

Genus

Dahlia

Cultivar

Downham Royal

Family

Asteraceae

Other common names

Dahlia

Origin

Cultivar or hybrid

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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

Best planting time March to April
Recommended planting time March to May

Intended location

Suitable for Meadow
Type of use Border, Vegetable garden
Hardiness Hardy down to -4°C (USDA zone 9b) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun
Soil pH Any
Soil moisture Moist soil, Fertile, well-draining.

Care

Pruning instructions Remove faded flowers regularly.
Pruning Pruning recommended once a year
Pruning time July to September
Soil moisture Moist soil
Disease resistance Very good
Overwinter Needs to be stored
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