Dwarf Dahlia Double Extreme Mix Seeds
Dwarf Dahlia Double Extreme Mix Seeds
Dahlia variabilis Double Extreme
Dwarf Dahlia
Very disappointed with the colours, and they are not double as indicated on the packaging.
jean pierre L., 21/08/2018
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Description
Dahlia 'Double Extreme' is a very attractive collection of compact dahlias with semi-double or fully double blooms in a wide array of warm, intense shades. Planted en masse, they will be a great addition to any garden, no matter how small, as well as terraces or balconies. This selection is first year flowering, blooming prolifically from July until the first frosts. Ideal for borders, growing to the front of flowerbeds or in pots.
Dahlias belong to the Asteraceae family and are native to Mexico. Nowadays, some 20,000 horticultural varieties are grown in gardens all over the world. 'Double Extreme' produces dwarf plants with a bushy, compact habit, that don’t require support. Each plant grows to approximately 50 cm in height and 40 cm in width. The flowering period takes place from July to October. The 6 cm wide, semi-double or fully double corollas are made up of several rows of ray flowers in a variety of warm, sunset shades including white, yellow, orange, red and deep red, surrounding a yellow central disc. Blooms are plain or two-toned. The stems are well branched and hollow, bearing opposite leaves that are subdivided into 3 or 5 toothed lobes. Both leaves and stems are dark green. To encourage repeat flowering and extend the flowering period, take care to remove faded flowers regularly. Better still, cut the flowers regularly to create beautiful, colourful arrangements.
Dahlias are great for creating patches of colour towards the front of summer beds and borders. They combine well with Echinacea, Helenias and Cosmos or with the soft, feathery plumes of ornamental grasses such as Pennisetum villosum. This dwarf variety is particularly suitable for growing in pots and containers on the patio or balcony.
Flowering
Foliage
Plant habit
Botanical data
Dahlia
variabilis
Double Extreme
Asteraceae
Dwarf Dahlia
Cultivar or hybrid
Planting and care
Sow in February-March, in seed trays or pots filled with sowing mix. Bury the seeds under 1.5 mm of fine soil. Place in a propagator or somewhere warm, at a temperature of 18 to 20°C. Germination takes 7 to 21 days. Transplant the seedlings into individual pots when they are strong enough to be handled, taking care not to damage the roots. Harden the plants off gradually and plant them out when all risk of frost is over, leaving 30 cm between each plant.
Dahlias enjoy full sun and rich, cool, well-drained soil. Stagnant humidity can cause the tubers to rot. If necessary, amend the soil with compost and sand. Dig over the plot thoroughly and enrich the soil with hoof and horn meal fertilizer. After planting, water once abundantly and repeat this regularly for the first 6 weeks to help root development.
Dahlias are sensitive to cold temperatures and must be overwintered indoors. In November, when the first frosts blacken the foliage, dig up the tubers carefully. Clean off as much soil as possible. Allow the foliage to dry, so that the tubers can rebuild their food reserves. Then cut the stems back to about 10 cm. Spread your bulbs in a crate on newspaper. Store them in a dry, cool, dark place, such as a garage or attic, sheltered from frost. In warmer climates, Dahlias can be left in place and protected under a layer of mulch (leaves, straw etc.)
Sowing period
Intended location
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.