Hydrangea aspera Rosemary Foster
Hydrangea aspera Rosemary Foster
Hydrangea aspera Rosemary Foster
Hydrangea aspera Rosemary Foster
Hydrangea aspera Rosemary Foster
Hydrangea aspera Rosemary Foster
Rough-leaved Hydrangea, Aspera Hydrangea
Arrived in a sorry state. Only one leaf and all droopy. Slowly coming back to life but I am extremely disappointed, as well as with the rest of my order...
Laetitia , 05/06/2024
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Description
The Hydrangea aspera 'Rosemary Foster' is a wonderful cultivar of Hydrangea with flat flowers obtained in England by Maurice Foster who dedicated it to his wife. It is characterized by a compact habit, rapid flowering, and beautiful colors. This small bush is truly extraordinary with its long leaves that change from brown to green with a purple underside and its large violet to purple-pink umbels scattered with white florets. This long summer flowering, whose color is little influenced by the nature of the soil, will be followed by beautiful autumn colors. It is a very hardy variety and easy to grow in well-prepared ordinary garden soil. A very beautiful discovery, which is very difficult to resist!
Originally from a large part of southern and eastern Asia, where it shows great variability, the Hydrangea aspera is a large and hardy shrub belonging to the hydrangea family. It is a close relative of hydrangeas with large leaves and ball-shaped inflorescences.
The Hydrangea aspera Rosemary Foster is a small bush that grows about 1.20 m (3 ft 11 in) in all directions. It has a very bushy habit; its flower heads are flat and particularly dense. The corymb consists of small flowers arranged in umbels, carried by dark red peduncles. The sterile flowers are larger and fewer in number, forming a sparse crown around the fertile flowers. The fertile flowers resemble small clustered buds of a reddish wine colour and open into tiny violet flowers from the outside to the inside of the corymb. This particular arrangement is called a "grandmother's bonnet."
The foliage of this hydrangea is deciduous, falling in autumn. It consists of elongated, lanceolate leaves with very fine teeth, slightly downy, more so on the underside. The leaves are marked with fairly deep veins. The young leaves are chocolate brown, while the mature leaves are greyish-green on top and purplish to brown on the underside. In autumn, the leaves take on golden to amber tones.
Hydrangea aspera Rosemary Foster likes cool shady or semi-shady environments, but is one of the few, along with Hydrangea quercifolia and its varieties, to be quite tolerant of limestone and to tolerate slightly sunny exposures. Naturally, it will also thrive in an ericaceous bed alongside other hydrangeas, Kalmia, or Chinese Azalea. Pairing it with a small red rose or with Four O'Clock Flowers (Mirabilis jalapa) is quite charming. This hydrangea, with its small size, is ideal in gardens of all sizes. It can be planted in flower beds, along a path, near an entrance, or even in a large pot on the terrace.
Hydrangea aspera Rosemary Foster in pictures
Plant habit
Flowering
Foliage
Botanical data
Hydrangea
aspera
Rosemary Foster
Hydrangeaceae
Rough-leaved Hydrangea, Aspera Hydrangea
Cultivar or hybrid
Planting and care
To plant your Hydrangea aspera Rosemary Foster, choose a spot that's semi-shaded or gets mild sun. If your soil is chalky, dig a hole and fill it with a mixture of garden soil, leaf compost, and ericaceous soil. This variety usually grows well in ordinary, deep, and well-loosened soil that stays fresh in summer. Adding well-decomposed manure or compost can be helpful. Ensure to water it a lot when you plant it and during the first two years. In case of drought, water it a few times during the summer and mulch the base in hot regions.
After September, stop all watering and in cold regions, protect the base with a mulch of dead leaves.
This modestly growing variety of hydrangea is suitable for pot cultivation.
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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