Hydrangea macrophylla Mousmée
Hydrangea macrophylla Mousmée
Hydrangea macrophylla Mousmée
Hydrangea macrophylla Mousmee
Bigleaf Hydrangea, French Hydrangea
Very pleased with the pruning of the young plant.
Thierry D., 30/09/2019
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Description
In English, the Hydrangea macrophylla 'Mousmée' is also called Hydrangea 'Young Girl'. It is a recently introduced plant that produces beautiful pink and blue flowers. The flowers are arranged in flat flower heads with violet tones, and their colour may change throughout the season depending on the soil.
The peripheral florets will be bright pink to magenta pink, then turning to blue-violet, surrounding a bouquet of light blue fertile florets, then more brilliant blue. In autumn, the flowers settle on an antique violet-blue tint. Its magnificent vibrant green foliage dresses a beautifully sized, robust and vigorous bush. Perfect for shaded beds in non-limestone soil.
Hydrangea macrophylla 'Mousmée' is a recent introduction but already a star. It comes from the cross-breeding of H. macrophylla and H. aspera, among others. All these hardy plants belong to the Hydrangeaceae family, originating from China and Japan. 'Mousmée'is part of a series of 'Lacecap' cultivars selected for their flat cyme flower heads. This bush shows a somewhat erect and ample, regular, arched, graceful habit. It reaches about 1.50 m (4 ft 11 in) in height for a 1.20 m (3 ft 11 in) at maturity. From July to September, its small, fertile and sterile flowers, with striking dimorphism, form spherical flower heads 18 to 22 cm (7.1 to 8.7 in) in diameter, very flat. They consist of a sparse row of pink sterile florets arranged around a beautiful central bouquet of blue fertile florets. In acidic soil, the flowers will have brighter and bluer shades. The autumn shades, darker, are a complex mix of faded blue, violet and purple. In neutral soil, the fertile and sterile flowers are pink. The flowering unfolds on ample, shiny, light green, dentate, deciduous leaves. The leaves are opposite; they reach a minimum of twenty centimetres in length. They are single, ovate to elliptical, ending in a pointed tip, coarsely saw-toothed. Hydrangeas can live at least 50 years.
The 'Mousmée' Hydrangea is a graceful plant with a very light appearance. Hydrangeas are well known for brightening up the north side of houses. This variety will enjoy an east or west exposure that is not scorching in beds and hedges. This variety is particularly suited to container cultivation, which can be placed on the terrace in a beautiful pot or near the entrance. Even though these plants are not fond of limestone, they are not strictly ericaceous plants. Pair them with magellanica fuchsias, annual impatiens, or plant spring-flowering bulbs in front of their round silhouette. Enjoy their sumptuous and long-lasting flowering in the garden or the house.
Hydrangea macrophylla Mousmée in pictures
Plant habit
Flowering
Foliage
Botanical data
Hydrangea
macrophylla
Mousmee
Hydrangeaceae
Bigleaf Hydrangea, French Hydrangea
Cultivar or hybrid
Planting and care
Choose a slightly shaded spot to plant hydrangea macrophylla 'Mousmée' , like against an east-facing wall or to the north. If you live in a cold area, protect it from cold and drying winds by overwintering it in a cold greenhouse or on the veranda. The plant does not require ericaceous soil but prefers deep, fresh, and well-drained soil that is relatively fertile. Add a good base fertiliser before planting. If the soil is dry at the base of the wall, plant the root ball at least 30-40 cm (11.8-15.7 in) away from the wall and add plenty of well-rotted compost to retain moisture. Hydrangea macrophylla 'Mousmée' is a hardy plant and can tolerate cold weather. To prune, remove the faded flowers on the first bud or on the pair of buds directly below. Cut back the oldest stems to a quarter or a third at the base during March and April to encourage the growth of young shoots.
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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