Hydrangea paniculata Shikoku Flash
Hydrangea paniculata Shikoku Flash
Hydrangea paniculata Shikoku Flash
Paniculate Hydrangea, Panicled Hydrangea, Panicle Hydrangea
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This plant carries a 24 months recovery warranty
More information
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
Somewhat unusually, perhaps, Hydrangea paniculata Shikoku Flash is a marvellous and very different variety of paniculate hydrangea that is more noticeable for the beauty of its foliage than for its flowering! With its lovely leaves generously splashed and sprayed with cream turning to grey-white, it catches the eye from April and puts on its show until autumn, particularly in semi-shaded areas of the garden. Its light summer flowering, in the form of small white panicles, highlights the delicacy of this remarkable plant. Choose its location carefully, in filtered light, and provide deep and fresh soil at its base without too much limestone.
Hydrangea paniculata, belonging to the Hydrangeaceae family and originating from deciduous forests in its natural habitat, is native to Korea, southeast China, Japan and Russia (Sakhalin and Kuril Islands). This Shikoku Flash variety brings a breath of fresh air to this genus which has been available in many cultivars since the introduction of this species in the West. With quite rapid growth, albeit a little slower than the type species, this Hydrangea forms a beautiful bush with brown stems, measuring about 1.8 m (5 ft 11 in) in all directions. Its habit is bushy, upright and ample, and its deciduous, dense foliage appears late in the spring, around April. It is composed of ovate and pointed leaves, measuring 7 to 15 cm (2.8 to 5.9 in) long. Green when budding, they are quickly invaded by splashes and a dusting of white, shifting from cream-white to very light grey. They take on beautiful golden-yellow colours in autumn, if the cold does not set in too quickly. Around July-August appear some small, somewhat loose conical panicles, composed of larger sterile flowers and downy fertile ones, first greenish-white, then cream-white, gradually turning to old pink at the end of the season. The flowers persist on the shrub all winter, pleasantly decorating the garden in the dormant season, especially when they are adorned with frost.
This paniculate hydrangea is intended for gardens rather than pot cultivation, and preferably away from the burning sun of the afternoon which could damage its very beautiful foliage. Very accommodating, easy to live with and boasting excellent hardiness, it will flourish in ordinary but deep soil, and even poor or stony soil that is well drained but not too dry. It can be included in a free hedge, integrated into a bed of trees and shrubs adorned with perennial plants, but it is on its own that it will display all its splendour. The choices are varied, and it will blend perfectly with dark evergreen shrubs, shrubs with coloured stems like those of certain dogwoods, or shrubs with summer or late flowering. This bushy hydrangea animates the garden from spring until late in the season! It is not necessary to cut off the faded flowers, as they remain decorative for a long time in winter and protect the stems in case of severe frost.
Hydrangea paniculata Shikoku Flash in pictures
Plant habit
Flowering
Foliage
Botanical data
Hydrangea
paniculata
Shikoku Flash
Hydrangeaceae
Paniculate Hydrangea, Panicled Hydrangea, Panicle Hydrangea
Cultivar or hybrid
Planting and care
Hydrangea paniculata Shikoku Flash is a very easy-to-grow shrub, requiring little care and maintenance. It enjoys gently sunny positions and fears the sun at the hottest hours of the day. With unbeatable hardiness, it can withstand harsh climates as it can tolerate temperatures down to a minimum of -15 °C (5 °F). Not demanding about the nature of the soil, it does however require a deep, well-drained, acidic to neutral soil, but tolerates the presence of limestone in small quantities in the soil. It copes just as well with a rich, humus-rich and acidic soil as with an ordinary, poor or stony soil, provided that the soil is amended with a good leaf compost every spring. It will be less happy in heavy soil, so if this is the case it will be necessary to lighten the soil by incorporating sand and turf to improve drainage. When planting, which can be done in spring or autumn, work the soil deeply and add a good base fertiliser such as dried blood or crushed horn. Plan a location where its span can develop. Leave a free space of 1 m (3 ft 4 in) to 1.5 (4 ft 11 in) around it. It appreciates fresh soils, but tolerates a passing drought quite well. In the first year, carry out regular and generous watering, especially in hot regions. Furthermore, it is advisable to water frequently during flowering, without wetting the leaves or flowers.
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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