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Dahlia Platinum Blonde

Dahlia Platinum Blonde
Dahlia

5,0/5
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Very large dahlia Original silhouette. Stands well and holds up quite well in the wind.

ANNE D., 10/10/2017

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This plant carries a 6 months recovery warranty

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Value-for-money
A large anemone-flowered dahlia, floriferous and prolific. It produces numerous bicoloured heads of 10cm (4in), composed of a single white collar, topped with a large cushion of soft yellow to ivory. It blooms a little earlier than other varieties, from summer to autumn, above robust foliage. 
Flower size
9 cm
Height at maturity
1.20 m
Spread at maturity
50 cm
Exposure
Sun
Hardiness
Hardy down to -4°C
Soil moisture
Moist soil
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Best planting time March to May
Recommended planting time March to June
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Flowering time June to October
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Description

The  Dahlia 'Platinum Blonde' is a recent variety of robust, prolific, and refined anemone-flowered dahlia. It produces medium-sized bicoloured heads, composed of a simple white collar where a large cushion of tender yellow florets nestles, tending towards ivory. It blooms a little earlier than other varieties, from summer to autumn, at the top of a bushy clump. Proud in borders, this dahlia has enough distinction and personality to accompany tall perennials and flowering bushes without overshadowing them. 

Dahlias are tuberous plants of the large Asteraceae family, originally native to the high plateaus of Mexico. Currently the approximately 25,000 horticultural varieties obtained by humans have invaded, to our pleasure, gardens all over the world. Dahlias are classified according to the shape of their flowers. Introduced in 2007, in the same vein as 'Blue Bayou' and 'Totally Tangerine' but in pastel yellow, 'Platinum Blonde' is classified in the category of anemone-flowered decorative dahlias. In this group, the colourful ligules of the head are arranged in fringed pompoms, for example, and surrounded by a collar of wider petals. In this variety, the heads are 7 to 10 cm (3 to 4in) in diameter and the outermost ligules are almost flat, arranged in a simple collar. Those in the centre are shorter, tubular, and fringed, of a bright pale yellow, pressed against each other like a cushion. The flowering takes place from the end of June to October. The vigorous plant will easily reach 1.2 metres (4 feet), or even more in fertile soil, with a bushy and dense habit. The highly branched stems are hollow and the leaves are opposite and divided into 3 or 5 denticulate leaflets. The leaves and stems are of a fairly deep green.

To promote continuous blooming and extend the flowering period, make sure to remove faded flowers. Even better, regularly compose attractive colourful bouquets by combining various varieties. This variety deserves to be highlighted by the light foliage of grasses such as Panicum, Molinia, and Calamagrostis. This combination will emphasise the contrast between the delicacy of the tall grasses and the assertiveness of the flower. The flowering of Cannas and Echinaceas is perfect as an accompaniment to that of Dahlias, as they occur simultaneously, as well as the flowering of cosmos or perennial salvias, for example.  

The star plant of ornamental gardens, Dahlias are undoubtedly beautiful flowers. They are perfect in flower beds but can also enhance vegetable gardens. In Mexico, this tuber was initially cultivated as a root vegetable for consumption. Its poor taste quickly relegated it to the status of an ornamental plant. Since then, interest in their beautiful exuberance has never waned.

Dahlia Platinum Blonde in pictures

Dahlia Platinum Blonde (Flowering) Flowering
Dahlia Platinum Blonde (Foliage) Foliage

Plant habit

Height at maturity 1.20 m
Spread at maturity 50 cm
Growth rate fast

Flowering

Flower colour yellow
Flowering time June to October
Inflorescence Flower head
Flower size 9 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Genus

Dahlia

Cultivar

Platinum Blonde

Family

Asteraceae

Other common names

Dahlia

Origin

Cultivar or hybrid

Product reference830621

Planting and care

The 'Platinum Bronze' Decorative 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 as soon as the last frost has passed, rich, fresh, and well-drained soils are 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 crushed horn or dehydrated blood. Place your tuber and crumble the soil well to fill the hole without air pockets. Your dahlia should be covered with about 6 cm (2in) of soil. At the end of planting, water abundantly once and then regularly for the first 6 weeks to help with rooting.

Dahlias are sensitive to cold, they need to be overwintered under shelter. In November, the first frosts blacken the foliage, so it is time to dig them up. Carefully unearth the tubers. Remove as much soil as possible. Let the foliage dry so that the tubers can replenish their reserves. Then cut the stems down to 10 cm (4in). Spread your bulbs in a crate on newspaper. Store them protected from frost in a dry, cool, and dark place, such as a frost-free garage or an attic. In the southern regions, close to 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 resistant to wind or heavy rain. To overcome this drawback, you can stake it but it's not very attractive. On the other hand, by pinching the stems early you can spread out the habit of the plant, which will offer more resistance to bad weather. Alternatively, you can remove the axillary flower buds to channel the flow of sap to a single flower, which will become larger and sturdier, though taller.

Planting period

Best planting time March to May
Recommended planting time March to June

Intended location

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

Care

Pruning instructions Trim regularly the faded flowers to promote flowering.
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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