Hydrangea arborescens Ruby Annabelle
Hydrangea arborescens Ruby Annabelle
Hydrangea arborescens Ruby Annabelle
Hydrangea arborescens Ruby Annabelle
Hydrangea arborescens Ruby Annabelle®
Smooth Hydrangea, Wild Hydrangea, Sevenbark
Suffered a bit...
Marie Pierre, 09/07/2025
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Description
Hydrangea Ruby Annabelle, awarded at Plantarium 2016, completes this beautiful series of American hydrangeas with enormous globular flowers in a delicious red hue mixed with silver-pink. This small-sized bush forms large balls of dark red buds that open into silver-pink florets edged with ruby-red throughout the summer. Its stems are robust and sturdy, pleasantly adorned with beautiful dark green foliage. This hardy, robust and beautiful hydrangea is a gem for the garden or terrace. Its spectacular flowers are also beautiful in bouquets.
Hydrangea arborescens, or Virginia Hydrangea, belongs to the large Hydrangeaceae family. This botanical species, native to the Southeast USA, is less demanding in terms of shade and soil than its Asian counterparts. Through hybridisation, it has produced numerous varieties that have proven to be excellent garden shrubs, such as the famous 'Annabelle', obtained in the USA several years ago.
The 'Annabelle' series of arborescent hydrangeas are appreciated for their floribundity, hardiness, better tolerance to sun and less acidic soils, as well as their vigour. They consist of highly branched and highly floriferous bushes that decorate the garden from June until the first frost. Ruby, recently obtained in the United States, is a very hardy plant that faithfully reblooms on new shoots, even after cold winters. It has beautiful thick and branched stems that reach up to 90 cm (35.4 in) and form a bush with a similar width (even wider depending on the conditions). From the end of June, they are crowned with perfectly spherical large corymbs that continue to bloom until late summer. The sturdy stems effortlessly support the weight of the flowers, even when they are soaked with rain. These large flowers can measure up to 30 cm (11.8 in) in diameter and are made up of a multitude of small flowers with 3 to 4 petals, in an old silver-pink colour edged with ruby-red. The whole is enhanced by dark green foliage, composed of beautiful simple leaves measuring 10 cm to 20 cm (3.9 in to 7.9 in) long, wide and ovate, nicely crinkled and deciduous. Hydrangeas can live for many years in the garden, often more than 50 years.
If you like easy-to-grow, floriferous hydrangeas with vibrant colours, Ruby Annabelle will delight you. If your decor is more contemporary, or if you have a small city garden, this small-sized bush will provide a romantic and elegant touch. Hydrangea arborescens Ruby Annabelle adds glamour to any semi-shady scene, whether placed individually or in groups. A small border of boxwood or Lonicera nitida 'Elegant' planted at its base will form an elegant setting for its large pink and red flowers. In the front of an urban garden, it brings romance and distinction. It can be surrounded by hellebores, daffodils, and pansies that extend the flowering period and complete the range of colours. Finally, while it is superb in flower beds and hedges, it is also perfectly suitable for use in pots or containers on a terrace. Cut its flowers to create beautiful bouquets!
Hydrangea arborescens Ruby Annabelle in pictures
Plant habit
Flowering
Foliage
Botanical data
Hydrangea
arborescens
Ruby Annabelle®
Hydrangeaceae
Smooth Hydrangea, Wild Hydrangea, Sevenbark
Cultivar or hybrid
Planting and care
Plant in full sun or light shade in ordinary, preferably fertile and well-drained soil that remains moist in summer. It tolerates mediocre, rocky, and slightly calcareous soils fairly well. This variety maintains its colour regardless of the soil's pH. It is not afraid of late frosts, as it continuously produces flower buds on its new shoots. At planting, place it in deeply worked soil. A good base fertiliser (horn or dehydrated blood) will promote the growth of your plant and nourish it without the risk of burning. Remove faded flowers regularly during summer to promote new ones. However, stop removing the faded flowers towards the end of summer, as the large dried umbels will protect the terminal shoots in winter. Remove the dried flowers at the end of February or at the first sign of warm spring weather.
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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