Dahlia Radegast
Dahlia Radegast
Dahlia Radegast
Dahlia
Blooming, matches the description, thank you.
et, 20/10/2024
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This plant carries a 6 months recovery warranty
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Description
Dahlia 'Radegast' is a decorative variety with enormous double flowers that are fully open, composed of slightly frilly petals. The bicolour blooms boast a bluish pink with lilac and pure white tones. The plant is quite tall, and the flowers are carried high above the foliage by sturdy, dark-coloured stems. It flowers from July until the first frosts.
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 according to the shape of their flower. 'Radegast' is classified as a decorative dahlia. In this group, the colourful ligules of the head are arranged regularly in a spiral. They can be bent towards the stem or fringed, for example. In this variety, the heads measure up to 20 to 22cm (8 to 9in) in diameter. Their ligules are rather large, ovate, slightly plicate, almost flat, and loosely arranged. Flowering takes place from July to October-November. Its bicoloured petals are white in the centre and at the tips, edged with pink and lilac reflections. The plant reaches an average height of 1m (3ft), and a width of 50 to 60cm (20 to 24in), with a bushy and upright habit. The branched stems are hollow. The leaves are opposite and pinnately compound, meaning they are divided into 3 or 5 toothed leaflets. The leaves are quite dark green and the stems are tinged with purple.
Remove faded flowers to encourage new blooms. You can use cut flowers to make colourful bouquets, combining them with other varieties.
Decorative dahlias go well with gauras and cleomes that lighten their generous silhouette. 'Radegast' flowers go well with pink and white schemes. The size of this variety makes it suitable for the centre of mixed borders, to structure a composition composed of bushy shrubs (smokebush, winged euonymus, loropetalum) and shorter plants. Echinaceas and perennial sages are perfect companions, as they bloom simultaneously. Also consider grass species (quaking grass, sugar cane grass, pheasant's tail grass, love grass), which take on beautiful colours in autumn.
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.
Dahlia Radegast in pictures
Plant habit
Flowering
Foliage
Botanical data
Dahlia
Radegast
Asteraceae
Dahlia
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.
This tall dahlia, with its hollow stems, is not resistant to wind or heavy rain. You can stake it, but this is not particularly aesthetically pleasing. To remove the need for staking, you can pinch the stems early or remove the axial flower buds to spread out the plant's habit, which will improve its resistance to bad weather. This also channels the flow of sap to a single flower, which will become larger and sturdier.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.