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Dahlia Gallery Cobra Obs

Dahlia Gallery Cobra
Dahlia

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More information

This flamboyant variety bears fully double flowers, 10cm (4in) wide. They display a blend of orange and primrose yellow. Each petal is adorned with a red underside. They bloom from June until the first frosts, on particularly sturdy plants with beautiful dark green foliage.
Flower size
10 cm
Height at maturity
40 cm
Spread at maturity
30 cm
Exposure
Sun
Hardiness
Hardy down to -6°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

Dahlia 'Gallery Cobra' catches everyone's attention with its truly flamboyant flowers. They are fully double, 10cm (4in) wide, and display a salmon-orange colour mixed with primrose yellow. Each slightly turbinate petal is adorned with a red underside. They bloom from June until the first frosts, on compact bushes dressed in particularly dark green foliage. Like all varieties in the Gallery series, it has a compact habit and excellent floribundity. It is specifically developed for ornamental containers and flower beds.

 

Dahlias belong to the Asteraceae family and are originally from the high plateaus of Mexico. There are currently thousands of horticultural varieties that have conquered gardens worldwide. 

'Gallery Cobra' is a dwarf variety classified as both a decorative and cactus dahlia. The plant will not exceed 40 to 45cm (16 to 18in) in all directions. It has a bushy and compact habit that does not require staking. Flowering takes place from June to October-November. The dense flower heads measure 7 to 10cm (3 to 4in) in diameter. They resemble slightly flattened and well-organised balls, composed of numerous rows of peripheral ligulate florets that are quite long and weakly recurved towards the stem, with the central ones being smaller and wider. Their colour is a mix of yellow, orange, and red. The red colour is more pronounced on the edges of the petals and at the heart of the flower, before full bloom. At the end of anthesis, the yellow central disc appears. The branched stems are hollow, and the leaves are opposite and divided into 3 or 5 denticulate lobes. The leaves and stems are dark green, which enhances the flowering.

 

Remove faded flowers to encourage new blooms. You can use cut flowers to make colourful bouquets, combining them with other varieties.

'Gallery Cobra' is wonderful in a flowering pot. It also thrives in the front of borders or in flower beds. It pairs particularly well with the foliage of grasses, such as Pennisetum villosum (a lovely feathery grass), Hordeum jubatum (squirrel-tail barley), or Stipa pennata. Grasses will bring softness and delicacy. It also looks splendid with white blooms, especially those of asters (Aster 'Ashvi', A. 'Snow Flurry').

 

Dahlias are stars of borders and ornamental gardens, confidently accompanying the most beautiful flowers. However, they are also appreciated alongside vegetable plants. In Mexico, this tuberous plant was first cultivated as a root vegetable for consumption. Its poor taste qualities quickly saw it categorised as an ornamental plant. Since then, the interest in their beautiful exuberance has never waned.

 

Plant habit

Height at maturity 40 cm
Spread at maturity 30 cm
Growth rate fast

Flowering

Flower colour orange
Flowering time July to November
Inflorescence Flower head
Flower size 10 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour dark green

Botanical data

Genus

Dahlia

Cultivar

Gallery Cobra

Family

Asteraceae

Other common names

Dahlia

Origin

Cultivar or hybrid

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Planting and care

Dahlia 'Gallery Cobra' is easy to grow in all regions. Plant in spring as soon as the last frost has passed. For abundant flowering, plant the tubers in full sun in rich, moist but well-drained soil. Stagnant moisture causes tuber rot. 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 without air pockets. Cover with about 6cm (2in) of soil. At the end of planting, water once abundantly and then repeat this watering regularly during the first 6 weeks to help with rooting. 

Dahlias are sensitive to cold, so they need to be overwintered. Dig the tubers up when the first frost has blackened the foliage. Carefully remove the tubers. Remove as much soil as possible. Let the foliage dry so that the tubers can replenish their reserves. Then cut the stems to 10cm (4in). Spread your bulbs in a box lined with newspaper. Store them in a frost-free, dry, cool, and dark place, such as a garage or attic. In mild regions without frost, or those close to the coast, it is possible to leave them in place. In this case, simply cover the ground with a carpet of leaves or straw for protection.

Planting period

Best planting time March to April
Recommended planting time March to May
Planting depth 10 cm

Intended location

Suitable for Meadow
Type of use Edge of border, Container, Vegetable garden
Hardiness Hardy down to -6°C (USDA zone 9a) Show map
Ease of cultivation Amateur
Planting density 7 per m2
Exposure Sun
Soil pH Any
Soil moisture Moist soil, Fertile, well-drained.

Care

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

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