Dahlia Madame Antoinette
Dahlia Madame Antoinette
Dahlia Madame Antoinette
Ornamental Dahlia
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Description
The Dahlia 'Madame Antoinette' (Decorative) is characterised by its perfectly round flower heads, in peach-pink tones with a fuchsia-pink reverse. Of medium stature, standing on sturdy stems, and very floriferous, it is an excellent variety for late summer borders and cut flower arrangements. Its prolonged flowering period enlivens the garden until the first frosts.
Belonging to the Asteraceae family, this cultivar is classified in the group of small-flowered Decorative dahlias, a category in which the ligulate florets (or "petals") are flat or slightly incurved and so numerous that they completely conceal the centre of the head. Horticultural dahlias are complex hybrids derived from Mexican species, and the genus is native to the highlands of Mexico and Central America.
The variety 'Madame Antoinette', registered in 2023, is also circulated under the trade name ‘Hermitage’. The plant has a bushy, upright habit. In one season, it forms a clump 90 cm to 1.20 m tall and 40 to 60 cm wide. The stems, herbaceous and hollow, are firm, green with purplish reflections. They bear bright green foliage, divided into lanceolate leaflets. The root system consists of fleshy tubers which produce new stems from the collar each spring. These tubers, which do not tolerate frost well, must be dug up and overwintered in a cool, dry place. The inflorescences (heads), 10 to 12 cm in diameter, bear rounded, slightly spoon-shaped ligules, peach-apricot on the front, with a more intense pink to fuchsia reverse; the flower buds may show a purplish hue before opening. Flowering lasts from July to October, until the first frosts.
In a border, pair the Dahlia 'Madame Antoinette' with grasses and perennials that flower in late summer: Pennisetum alopecuroides ‘Hameln’, Verbena bonariensis ‘Lollipop’, Salvia ‘Amistad’ and an autumn aster like ‘Andenken an Alma Pötschke’. To encourage flowering and prolong it, be sure to deadhead spent flowers regularly. Do not hesitate to create cut flower arrangements, playing on the complementary colours and shapes of the flowers. To do this, plant several varieties in the vegetable garden. Undisputed stars of cottage gardens, decorative dahlias pair well with airy-looking cosmos and cleomes.
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Plant habit
Flowering
Foliage
Botanical data
Dahlia
Madame Antoinette
Asteraceae
Ornamental Dahlia
Dahlia Hermitage
Cultivar or hybrid
Planting and care
The decorative Dahlia 'Madame Antoinette' is easy to grow in all regions. Here are a few simple rules to follow to enjoy its beautiful and generous flowering. Plant the tubercles in the sun after the last frosts. A rich, cool, and well-drained soil will be greatly appreciated. Avoid any stagnant moisture which encourages tubercle rot. Amend your soil with compost (in case of poor soil) and sand (for drainage) if necessary. Work your soil deeply and enrich it with ground horn or dehydrated blood, as you prefer. Place your tubercle and crumble the soil well around it to fill any air pockets. Your dahlia should be covered with about 6 cm of soil. Water generously at planting and then regularly for the first six weeks to help with root establishment.
Dahlias are sensitive to cold, so they need to be overwintered. In November, the first frosts blacken the foliage, which is the time to lift them. Dig up the tubercles carefully. Remove as much soil as possible. Allow the foliage to dry, so the tubercles can replenish their reserves. Then cut the stems to 10 cm. Spread your tubercles in a crate on newspaper. Store them in a frost-free, dry, cool, and dark place, such as a frost-free garage or an attic, for example. In southern regions, near the coast, experiencing only a few frosty days per year, it is possible to leave them in place. In this case, simply cover the soil with a thick mulch (leaves, straw...).
Pinch the stems early (from the 3rd or 4th week after planting) to make your dahlia more compact and ramified and therefore more resistant to bad weather (wind, rain). To do this, cut the terminal shoots with your fingernails just above the previous leaves. Otherwise, you always have the staking option, but the aesthetic result is not necessarily in the best taste.
Slugs and snails are very fond of these young shoots. Protect them!
Planting period
Intended location
Care
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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).
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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.