Dahlia Karma Serena
Dahlia Karma Serena
Dahlia Karma Serena
Dahlia Karma Serena
Dahlia Karma Serena
Dahlia Karma Serena
Ornamental Dahlia
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This plant carries a 6 months recovery warranty
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
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Description
The Dahlia 'Karma Serena' is a decorative dahlia specially selected for cut flowers. Its large cream-white flowers, touched with green-yellow at the centre, bloom on sturdy stems that won't topple at the first storm. In a border, it brings a soft, elegant light, perfect for brightening a summer scene or accompanying more colourful blooms. This variety is highly sought after by florists for wedding bouquets and contemporary displays.
Dahlias belong to the Asteraceae family and descend from species native to the highlands of Mexico and Central America. Modern hybrids are non-hardy tuberous perennials: the aerial part dies back in winter, but the tubercles, fleshy storage organs, will regrow in spring if protected from frost.
'Karma Serena' belongs to the horticultural group of decorative dahlias, characterised by double inflorescences with wide, flat, rounded ligules (petals), arranged in several tight ranks, completely covering the heart. This cultivar was bred in the Netherlands by Aad Verwer (Gebr. Verwer), as part of the Karma series, developed for the professional cut flower market. Its vase life is of the order of 8 to 10 days. The parents of Karma Serena are the cultivars Ambiance (female parent) and Oriental Dream (male parent). The variety has been protected since the second half of the 1990s and its official cultivar name is 'Karma Serena', sometimes abbreviated to 'Serena' in some registers.
The plant forms an upright, bushy clump 80 to 100 cm tall and 50 to 60 cm wide, borne on hollow, thick stems that are sufficiently rigid to support the flowers without bending in the rain. The foliage is abundant and medium to dark green. The flowers are large heads, 10 to 12 cm in diameter. They consist of a regular mass of rounded petals, cream-white, brightened at the centre with a soft yellow to yellow-green hue. Flowering lasts from July to October, often extended until the first frosts if watered regularly and deadheaded.
This subtle and luminous dahlia is perfect for creating elegant displays. In a border, it can be planted in small clumps to create light spots among dark dahlias like 'Black Destiny' or 'Arabian Night'. The large, frilly flowers of Dahlia 'Labyrinth Twotone', in mauve and white shades, also pair very well with this felted white in graphic cut flower arrangements. To create a more natural look in the garden, pair it with the verticality of a Salvia 'Amistad Violet' and a tall grass like Panicum virgatum 'Northwind'. In a vase, this dahlia lends itself to refined arrangements with a few light umbels or cut foliage, and a few heads of Dahlia 'Karma Choc' in dark red, for a chic black and white contrast.
In addition to their ornamental qualities, dahlias have a unique history: in their country of origin, they were already cultivated by the Aztecs, who used the hollow stems of some species as water ducts and consumed the tubercles as a vegetable and medicinal plant; today, the dahlia is even recognised as the national flower of Mexico, a symbol of the richness of its flora.
Dahlia Karma Serena in pictures
Plant habit
Flowering
Foliage
Botanical data
Dahlia
Karma Serena
Asteraceae
Ornamental Dahlia
Cultivar or hybrid
Planting and care
Dahlia 'Karma Serena' is easy to grow in all regions. For generous flowering, it is good to follow a few simple rules: plant the tubercles in a full sun position after the last frosts; rich, cool, and well-drained soils are perfect. However, stagnant moisture would encourage tubercle rot. Do not hesitate to amend the soil with compost and sand if needed. Work the soil deeply and enrich it, for example, with ground horn or dried blood. Place your tubercle and crumble the soil well to backfill without air pockets. Your dahlia should be covered with about 6 cm of soil. At the end of planting, water thoroughly once, then repeat this watering regularly for the first 6 weeks to aid rooting.
Dahlias are sensitive to cold and must be overwintered. In November, the first frosts blacken the foliage; this 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 bulbs 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.
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 carpet of leaves or straw as protection.
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.