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Dahlia Orange Emperor

Dahlia Orange Emperor
Dahlia

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This single-flowered dahlia will brighten up flower beds with its abundance of bright orange flowers. They will delight pollinating insects throughout summer, as well as lovers of country-style bouquets. They measure 12cm (5in) in diameter, and feature an impressive yellow centre. Add one to your vegetable garden to bring a touch of cheer.
Flower size
12 cm
Height at maturity
80 cm
Spread at maturity
60 cm
Exposure
Sun
Hardiness
Hardy down to -4°C
Soil moisture
Moist soil
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Best planting time April to May
Recommended planting time April to June
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Flowering time July to October
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Description

Dahlia 'Orange Emperor' will enhance your flower beds with its abundance of bright orange flowers. They will delight pollinating insects throughout summer, as well as lovers of country-style bouquets. The single flowers measure 12cm (5in) in diameter, with an imposing yellow heart. Add one to your vegetable garden to bring a touch of cheer.

 

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. They are tender perennials with fleshy tubers.

Dahlias are classified based on the shape of their flowers. The 'Orange Emperor' variety is a single flowered dahlia, resembling anemones or cosmos flowers. 

This variety's flowering period extends from July until the first frost. The flower heads measure 12cm (5in) in diameter. The yellow heart is surrounded by a row of ligules or "petals" in a magnificent bright orange. Its habit is bushy and erect, and the hollow stems are somewhat fragile in windy conditions. Its deciduous green leaves are divided into 3 or 5 toothed lobes.

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

Create a flower bed full of orange dahlias, mixing different flower shapes. Here are a few varieties that go well with Dahlia 'Orange Emperor': 'Sylvia Ball' with mandarin orange flowers, the dwarf cactus dahlia 'Sumatra' with magnificent bright orange flowers, and the decorative dahlia 'Bocherell' with apricot-coloured flowers.

Single-flowered dahlias go well with gauras and cleomes for a lighter look. Also consider echinaceas and Helianthus 'Lemon Queen' with their simple, pale-yellow flowers.

Plant habit

Height at maturity 80 cm
Spread at maturity 60 cm
Growth rate fast

Flowering

Flower colour orange
Flowering time July to October
Inflorescence Flower head
Flower size 12 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Genus

Dahlia

Cultivar

Orange Emperor

Family

Asteraceae

Other common names

Dahlia

Origin

Cultivar or hybrid

Planting and care

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.

Pinch the stems early (from the 3rd or 4th week after planting) to make your dahlia more compact and branched, and therefore more resistant to bad weather (wind, rain). To do this, use your nails to cut the terminal shoots just above the leaves. If you choose not to pinch out, there is always the option of staking, but the aesthetic result may not be the best.

Watch out for slugs and snails. They are very fond of these young shoots. 

 

Planting period

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

Intended location

Suitable for Meadow
Type of use Border, Container
Hardiness Hardy down to -4°C (USDA zone 9b) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Exposure Sun
Soil pH Any
Soil moisture Moist soil, Fertile, well-drained.

Care

Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Good
Overwinter Needs to be stored

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