Dahlia Hawaii
Dahlia Hawaii
Dahlia Hawaii
Dahlia Hawaii
Dahlia Hawaii
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 'Hawaii' Dahlia, with its large multicoloured flowers that appear to be painted, possesses an irresistible tropical charm. The soft pink, raspberry red, vanilla, and lemon yellow blend together in its petals, creating a harmony of colours that is reminiscent of the Impressionist style. They attract all eyes in the garden and allow for trendy bouquet arrangements. With a beautiful stature, the plant will charm in large flower beds, among bushes or tall grasses.
Dahlias belong to the Asteraceae family and are originally native to the high plateaus of Mexico. Currently, the approximately 25,000 horticultural varieties obtained by humans have invaded, to our great pleasure, gardens all over the world.
The 'Hawaii' variety, recently introduced to the horticultural market, is classified among the Decorative Dahlias, which is a horticultural category defined by the flower shape. In this group, the colourful ligules of the capitulum are regularly arranged in a spiral, they can be curved towards the stem or even fringed, for example. In this variety, the inflorescences in capitula are approximately 14-15cm in diameter and their ligules or petals are more or less tubular. The flowering period is from July to October. The habit is bushy, upright, and the plant reaches approximately 1.20m (4ft) in height when flowering, with a width of 70cm (28in). The highly branched stems are hollow and the leaves are opposite, pinnately divided into 3 or 5 deeply toothed lobes. The leaves and stems are quite light green in this variety.
To promote repeat flowering, take care to remove faded flowers, or even better, regularly create large colourful bouquets by combining it with other varieties. 'Hawaii' alone creates the backdrop for a dedicated flower bed, but its flowers will be enhanced by lighter and more discreet blooms, such as those of paniculate gypsophila, chamomiles or a linaria (Linaria purpurea 'Alba'). In flower beds, this dahlia pairs well with white paniculate phlox, tall pink or white foxgloves, and white, blue or purple autumn asters, for example. This variety with highly flowered stems allows for the addition of bouquets well into the late season.
As a star plant for borders and herb gardens, Dahlias confidently accompany the most beautiful flowers but are also appreciated alongside vegetable plants. In Mexico, this tuberous plant was initially cultivated as a root vegetable for consumption. However, its poor taste qualities assigned it the rank of an ornamental plant.
Dahlia Hawaii in pictures
Plant habit
Flowering
Foliage
Botanical data
Dahlia
Hawaii
Asteraceae
Dahlia
Cultivar or hybrid
Planting and care
Dahlia 'Hawaii' 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 without air pockets. Your dahlia should be covered 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 aid in rooting.
Dahlias are sensitive to cold, they need to be overwintered. In November, the first frosts cause the foliage to blacken, this is the 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 to 10cm (4in). Spread your bulbs in a box on newspaper. Store them protected from frost in a dry, cool and dark place, such as a frost-free garage or an attic, for example. In the southern regions, close to the coast, which experience very few days of frost 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.
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).
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 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.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.
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