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Dahlia Showntell

Dahlia Showntell
Dahlia

5,0/5
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High-quality bulb, in good condition. Delighted with my online order.

Ginette DOMENECH, 23/05/2016

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This plant carries a 6 months recovery warranty

More information

This Dahlia is sensational, with its huge finely dentate cactus flowers in a very bright orange-red, dotted with yellow, which attracts all attention from late July until the frosts. This floribundus variety also stands out for its floribundity. Perfect in the background of borders or to structure a medium-height border. Excellent cut flower.
Flower size
22 cm
Height at maturity
90 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 March to April
Recommended planting time March to May
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Flowering time August to November
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Description

The Dahlia Showntell is a superb variety with lace cactus flowers, offering particularly large flowers, and produced abundantly from late July until the frosts. Its beautiful bristly inflorescences have a very bright orange-red colour, pointed with yellow, which truly catches the eye. This medium-sized variety is suitable for the back of borders or for structuring a medium-height border. Its flowers are very long-lasting in bouquets.

 

Dahlias belong to the asteraceae family and are originally from the high plateaus of Mexico. Currently, the approximately 25,000 horticultural varieties obtained by humans have invaded, to our greatest pleasure, gardens all over the world. They are non-hardy perennials with fleshy tubers. The 'Showntell' variety reaches a height of 80 cm (32in) to over 1 m (3ft), depending on the growing conditions, with a spread of 60 cm (24in). It is classified as a cactus dahlia, more precisely a lace cactus dahlia; it is a horticultural category defined by the shape of the flower. In this group, the colored ligules of the head completely coil, giving them a characteristic pointed appearance, and their tips seem to have been cut. The flowering of this variety begins late and ends in October-November. The heads measure 22 to 26 cm (9 to 10in) in diameter, and the ligules are reddish-orange with varying amounts of golden yellow. The habit is bushy and upright, and the very branched stems are hollow. Its leaves are opposite, pinnately compound, meaning they are divided into 3 or 5 toothed lobes. The leaves and stems are a bright medium green.

 

To extend the flowering period and promote repeat flowering, make sure to remove faded flowers. Even better, regularly cut them to create attractive colourful bouquets by combining several varieties.

'Showntell' pairs particularly well with yellow flowers, especially sunflowers (annuals or perennials), tithonia (bright orange), and Hordeum jubatum (foxtail barley). In borders, it will blend perfectly with Echinaceas, Heleniums, and Cosmos, for example. With Sedum and miscanthus, it will also create a lovely and unique mix.

As the star plant of borders and ornamental gardens, Dahlias confidently accompany the most beautiful flowers but are also appreciated alongside vegetable plants. In Mexico, this tuber was first cultivated as a root vegetable for consumption. But its poor taste qualities relegated it to the status of an ornamental plant. Since then, the interest in their beautiful exuberance has never waned.

Dahlia Showntell in pictures

Dahlia Showntell (Flowering) Flowering
Dahlia Showntell (Foliage) Foliage

Plant habit

Height at maturity 90 cm
Spread at maturity 60 cm
Growth rate fast

Flowering

Flower colour orange
Flowering time August to November
Inflorescence Flower head
Flower size 22 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Botanical data

Genus

Dahlia

Cultivar

Showntell

Family

Asteraceae

Other common names

Dahlia

Origin

Cultivar or hybrid

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Planting and care

The 'Showntell' 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 after the last frost, with rich, fresh, and well-drained soil. However, stagnant moisture could promote tuber rot. Feel free to amend the soil with compost and sand if necessary. Work the soil deeply and enrich it with crushed horn or dehydrated blood, for example. 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 abundantly once and continue to water regularly for the first 6 weeks to aid in rooting. Dahlias are sensitive to cold, so they need to be overwintered. In November, the first frost will blacken the foliage, indicating it's time to dig them up. Carefully remove the tubers, shaking off 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 box on newspaper. Store them in a frost-free, dry, cool, and dark place, such as a garage or attic. In southern regions near 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 tall Dahlia, with its hollow stems, is not very resistant to wind or heavy rain. To overcome this disadvantage, you can stake it, but let's admit it, it's not very aesthetic. However, by pinching the stems early or removing the axillary flower buds, you can spread out the plant's habit, which will offer more resistance to bad weather. At the same time, you channel the sap flow to a single flower, which will become larger and stronger.

Planting period

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

Intended location

Suitable for Meadow
Type of use Border, Back of border
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, Well-drained, fertile.

Care

Pruning instructions Remove the 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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