Hydrangea macrophylla King George V
Hydrangea macrophylla King George V
Hydrangea macrophylla King George V
Hydrangea macrophylla King George V
Bigleaf Hydrangea, French Hydrangea
Received a lovely plant that flowered beautifully – I'm very pleased.
olivier, 01/10/2025
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Description
The Hydrangea macrophylla 'King George V' is a bush with intense fuchsia pink to deep red flowering. This ancient variety is still relevant today, as its long summer flowering is valuable in the garden, with few bushes blooming profusely during this season. It forms a dense bush dressed in healthy green foliage. Hardy, this Hydrangea should be placed in a shady location, in neutral to acidic soil. It is easy to grow, requiring only annual pruning in spring and watering in summer to keep the soil moist.
The Hydrangea macrophylla is a deciduous bush, native to Japan, where its beauty has been appreciated for centuries and mentioned in poems dating back to the 8th century! In this country that places great importance on plants, festivals are even dedicated to this bush. This 'King George V' Hydrangea is a variety obtained in Belgium in 1938, two years after the death of the English sovereign. It is a cross between two varieties of Hydrangea macrophylla, 'Rosabelle' with pastel pink flowers (a creation from 1928 by Henri Cayeux) and 'Merveille' with bright pink flowers, also by Henri Cayeux (1927) and a star of gardens between the two world wars. A historic variety, therefore, epitome of the species with its large spherical flower heads about twenty centimeters in diameter, this beautiful Hydrangea has retained all its ornamental interest. As with most H. macrophylla, the colour of the flowers depends on the acidity of the soil. It is more or less dark pink in neutral or slightly alkaline soil, turning to fuchsia pink and then deep red in more acidic soil. In any case, the colouring is remarkable for its intensity, which has allowed it to stand the test of time without losing its popularity. Flowering from July to September, well highlighted by the matte green foliage, this vibrant flowering is the main asset of this variety. A medium-sized bush, about 1.50m (4 ft 11 in) to 1.80m (5 ft 11 in) in all directions, this Hydrangea is not a strict ericaceous plant, but it prefers neutral to acidic soils. A semi-shaded exposure will suit it, as well as watering in summer. It is very hardy (-20°C). Easy to grow, it can live a very long time.
The King George V Hydrangea, a classic in flower beds, is a generous plant that will have a great effect in the garden when combined with other flowering shrubs that prefer non-calcareous soils. Choose plants with staggered flowering throughout the year to frame the flowering of this Hydrangea. For the beginning of the year, the 'Westerstede' Witch Hazel will brighten the short February days with its spider-shaped yellow flowers. In spring, there's nothing like a beautiful old variety of Camellia like 'Virginia Robinson' with its light pink flowers in April-May, followed in May-June by a Kalmia or mountain laurel, among the many available varieties. And to finish the year in beauty, a Camellia sasanqua with its fully open petals and bouquet of yellow stamens will be perfect.
Hydrangea macrophylla King George V in pictures
Plant habit
Flowering
Foliage
Botanical data
Hydrangea
macrophylla
King George V
Hydrangeaceae
Bigleaf Hydrangea, French Hydrangea
Cultivar or hybrid
Planting and care
Plant the compact hydrangea macrophylla King George V in spring or early autumn, preferably in a slightly shaded location, for example against an east-facing wall or even north-facing. In very cold regions, it may be prudent to protect its stump with a thick mulch. Keep it sheltered from cold, drying winds. It does not necessarily require acid soil, but appreciates a deep, moist, well-drained and fairly fertile soil. In poor soil, enrich with a good basal fertilizer before planting and mix the existing soil with a substrate containing some compost.
If the soil is dry at the base of the wall, place the root ball at least 30-40 cm (11.8-15.7 in) away from the base of the wall and incorporate a quantity of well-decomposed compost to better retain moisture in the soil. After planting, be careful of slugs which are quite fond of young leaves. Very hardy, it can be planted in cold regions without fear. Water regularly during hot periods to prevent the foliage from wilting during dry spells.
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).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
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 planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
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.
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