Hydrangea serrata Impératrice Eugénie - Mountain Hydrangea
Hydrangea serrata Impératrice Eugénie - Mountain Hydrangea
Hydrangea serrata Impératrice Eugénie - Mountain Hydrangea
Hydrangea x serrata Impératrice Eugénie
Mountain Hydrangea, Tea of Heaven
It was planted on the very day of its arrival. For now, it has taken root and this Empress has treated herself to the luxury of flowering—oh, just a tiny little flower, almost invisible as it's well hidden beneath the leaves, but a white flower nonetheless. Morning shade, afternoon sun, and evening shade seem to suit it... Let's keep our fingers crossed until next year.
Philippe, 16/04/2026
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This plant carries a 24 months recovery warranty
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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
Hydrangea serrata 'Impératrice Eugénie' (Collection 1900) is an old variety of hydrangea still appreciated for its hardiness, its long summer flowering, and its beautiful autumn colours. Its almost globular inflorescences gradually change from white to pastel pink and then to burgundy over time, creating a charming gradient on the scale of the plant. The flowers that have turned red form a beautiful association with the foliage which is tinged with bronze to red at the end of the season.
Hydrangea serrata 'Impératrice Eugénie' belongs to the Hydrangeaceae family, native to the mountains of the Kuril Islands to Taiwan and from southern China to eastern Japan. It is a hardy plant that thrives in mountainous climates. The plant forms a beautiful bushy shrub, which will reach about 1.25 to 1.35m (4 to 5ft) in height with a spread of 1.35m (5ft) by the age of 10 years. Its stems bear large dark green dentate leaves which take on beautiful hues in autumn. The colour is variable depending on exposure and soil nature. The abundant flowering begins in June and renews until September. The heavily domed inflorescences are composed of many sterile flowers with 4 petals. Initially almost cream-white, they become pure white and then gradually blush light pink, before turning dark red. The colour of the flowers is barely influenced by the acidity of the soil or its richness in aluminium sulphate.
Hardy up to -15°C (14°F), it will flourish in moist but well-drained, acidic or neutral, humus-rich soil. Give it a location in partial shade or in the morning sun, for example against a wall facing north or northeast. This bush works well in beds, in a low hedge, as a standalone, or in a pot. Combine it with other ericaceous plants such as rhododendrons, azaleas, pieris, and kalmia. Paulownia is very beneficial to hydrangeas, as its turgid roots feed those of the bushes installed in the understorey.
Hydrangea serrata Impératrice Eugénie - Mountain Hydrangea in pictures
Plant habit
Flowering
Foliage
Botanical data
Hydrangea
x serrata
Impératrice Eugénie
Hydrangeaceae
Mountain Hydrangea, Tea of Heaven
Cultivar or hybrid
Other Hydrangea serrata
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Planting and care
Choose a shady to semi-shady exposure. When planting, use neutral to acidic soil. Every three or four years, place well-decomposed manure mixed with dead leaves at its base. Preferably water with non-limestone water. Be careful with slugs from February, as they attack young buds. Avoid planting your hydrangea under a birch, hazel, or ash due to the competition of roots that could hinder its growth.
Planting period
Intended location
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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).
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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.