Hydrangea macrophylla Double Dutch Blue
Hydrangea macrophylla Double Dutch Blue
Hydrangea macrophylla Double Dutch Blue
Hydrangea macrophylla Double Dutch Blue
Hydrangea macrophylla Double Dutch Blue
Bigleaf Hydrangea, French Hydrangea
Very beautiful hydrangea growing remarkably in a pot with a mixture of peat soil, leaf compost and potting soil 347 P. Its voluminous flowers resemble those of Yoraku and take on pale pink hues in this season. The leafage is not very visible, it loves shaded areas with light but not direct sunlight. Requires a lot of water in a pot.
BERTRAND, 25/09/2019
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This plant carries a 24 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
Hydrangea macrophylla 'Double Dutch Blue' is a recent variety of hydrangea, selected in the Netherlands for its spectacular light blue panicles, composed of a multitude of double star-shaped florets. As with all hydrangeas, the blue colour is more intense when the plant is grown in acidic soil, with the florets turning purple to pink in neutral soil. The inflorescences are so large and numerous that they almost conceal the beautiful, dark green foliage. Its compact and bushy habit makes it suitable for growing in large pots or shaded borders, in non-calcareous soil.
Hydrangea macrophylla 'Double Dutch Blue', along with its variations 'Double Dutch Pink' and 'Double Dutch White', is part of an innovative series of hydrangeas presented in 2017 in Boskoop, Netherlands. It is a horticultural plant resulting from cross-breeding between H. macrophylla and H. serrata, among others. All these hardy plants belong to the Hydrangeaceae family and are native to China and Japan.
'Double Dutch Blue' is part of a series of lace-cap cultivars selected for their flat cyme inflorescences. This bush has a compact and round habit, as wide as it is tall, reaching 1m (3ft) in all directions. From July to September, it produces a multitude of inflorescences measuring 25 to 30cm (10 to 12in) in diameter, slightly rounded, composed mostly of unusual-shaped sterile florets. These florets are composed of 2 to 3 overlapping star-shaped corollas, each formed by narrow and pointed petals. These florets are carried by long pedicels in matching colours, ranging from purple to pink, giving a light appearance to this dense flowering. The deciduous foliage is dark green. The leaves are opposite, reaching a minimum length of about 15cm (6in). They are simple, ovate to elliptical, with a tapered tip and coarsely toothed edges. Hydrangeas can live for at least 50 years.
'Double Dutch Blue' is a fashionable plant, highly floriferous and compact, modern and romantic, with great ornamental value. This variety, destined for a bright future, will thrive on a terrace or near a doorway, planted in a large pot. It will also work well in a small hedge or with other flowering or foliage shrubs in a shaded area. Hydrangeas are well known for brightening the north side of houses. This variety will be happy in a non-burning east or west exposure, both in borders and hedges. Although these plants dislike lime, they are not strictly ericaceous plants. Mix them together or with Magellan fuchsias, annual impatiens, or rodgersias. Plant spring-flowering bulbs in front of their round silhouette. Enjoy their magnificent flowering in the garden or indoors for a long time.
Note: The colour of the flowers of Hydrangea macrophylla varies depending on the soil pH. Traditionally blue varieties turn pink in neutral or alkaline soil. To maintain a beautiful blue colour, mix ericaceous soil into your garden soil and apply aluminium sulphate (found in slate) or alum stone every spring.
Hydrangea macrophylla Double Dutch Blue in pictures
Plant habit
Flowering
Foliage
Planting and care
Plant in spring or early autumn, preferably in a semi-shaded position, for example against an east-facing, or even north-facing wall. In very cold regions, it may be prudent to overwinter it in a cold greenhouse or conservatory. Protect it from cold, drying winds. It does not require acidic soil, but appreciates deep, moist but well-drained, fairly fertile soil, possibly enriched with a good base fertiliser before planting. If planting near a wall and the soil is dry at its base, place the root ball at least 30 to 40cm (12 to 16in) away from it and incorporate a quantity of well-decomposed compost to better retain moisture in the soil. Fairly hardy, it is not afraid to be planted in cold regions.
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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