Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Hydrangea paniculata Diamant Rouge
Paniculate Hydrangea, Panicled Hydrangea, Panicle Hydrangea
Hydrangea of good quality, received in sturdy packaging. It has been very floriferous for several months. Thank you.
zohra, 28/12/2025
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Description
Hydrangea paniculata 'Diamant Rouge' is a shrub hydrangea that blooms early in July. The semi-round inflorescences are composed of abundant flowers with wide sepals. These inflorescences, which can measure up to 30 to 40cm (11.8 - 15.7in) in diameter, last a long time. The colour of the flowers changes from "diamond" white to increasingly dark pink and eventually becomes raspberry pink in August and wine red. This 'Diamant Rouge' variety is the reddest of all Hydrangea paniculata.
This hydrangea requires a fairly sunny location to develop its beautiful colour.
The flower "balls" are held upright on sturdy stems. They are accompanied by deciduous foliage speckled with reddish-brown that turns orange and purple in the autumn. With a very bushy habit, this hydrangea can reach a height of 1.50m (4ft 11in) at maturity.
It is a very hardy species. Hydrangea paniculata 'Diamant Rouge' can be placed in a pot, as a standalone plant, or in a bed. You can associate it with evergreen plants or perennials. 'Diamant Rouge' received the silver medal at the Plantarium exhibition in the Netherlands in 2011.
Available in a 3 L pot
Hydrangea paniculata Diamant Rouge in pictures
Plant habit
Flowering
Foliage
Botanical data
Hydrangea
paniculata
Diamant Rouge
Hydrangeaceae
Paniculate Hydrangea, Panicled Hydrangea, Panicle Hydrangea
Cultivar or hybrid
Planting and care
At planting, install your Hydrangea paniculata 'Diamant Rouge' in deeply cultivated soil. A good base fertilizer (horn or dehydrated blood) will promote the growth of your plant and nourish it without risk of burning. Hydrangea paniculata prefers humus-bearing soils but tolerates less fertile soils and drought more easily. If your soil tends to be dry, mix our water retainer, stockosorb, with the soil when backfilling the planting hole and provide a watering basin on the surface. Their spring vegetation is quite late. Water frequently during flowering, while avoiding direct watering of the foliage and flowers. In late summer, we advise you not to cut the dry umbels that will protect the terminal shoots of the branches in winter. Cut all the dry flowers at the end of February or at the first sunny days. Paniculatas require vigorous pruning to produce large inflorescences.
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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