Aster dumosus Jenny
Aster dumosus Jenny
Aster dumosus Jenny
Aster dumosus Jenny
Aster dumosus Jenny
Aster dumosus Jenny
Aster dumosus Jenny
Michaelmas Daisy, Dwarf aster
Superb growth in one year, magnificent flowering!
Cassandre, 01/10/2025
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Description
Aster dumosus 'Jenny' is a floriferous perennial with a compact habit. This Dwarf Aster bears multiple small flowers from late August until October, bringing life to the front of flower beds, thanks to its vibrant colours. Its deep pink, leaning towards red, is indeed a delight under the autumn sun. Easy and hardy, it can also be grown in pots to allow you to keep it near entrances and on patios.
Asters come in many varieties: some bloom in spring, others in summer or autumn. They can be giants (over 1m (3ft)) or small (20 to 40cm (8 to 16in)), and come in white, pink, red, or blue. They prefer moist soil but tolerate dry conditions. The possibilities are numerous and hybridisation work has contributed to this selection. However, they all share their numerous daisy-like flowers, which often attract pollinators and generously colour flower beds.
'Jenny' is no exception. Its small flowers (about 3 to 4 cm (1 to 2in)) are a very dense pink colour that leans towards red. They are made up of several rows of "petals", which are actually ligulate flowers, and a yellow centre, formed by tubular flowers. They are numerous and actively contribute to the beautification of flower beds. This cultivar forms a compact clump, thanks to its upright stems and lanceolate leaves. It does not exceed 40cm (16in) in height and 30cm (12in) in width. It is therefore often intended to be placed at the front of flower beds. However, it also thrives in pots and allows you to add colour to balconies, courtyards, and the surroundings of your house. In this case, make sure to keep the substrate moist and provide some fertiliser. 'Jenny' appreciates fertile, moist but well-drained soil. It will shine in the sun and tolerate partial shade. Hardy, it can withstand temperatures down to-15°C (5°F).
Aster dumosus 'Jenny' will create a beautiful autumn ensemble alongside grasses such as Stipa pennata or tenuifolia, Asters like 'Red September' or Aster turbinellus, 'Blackfield' Knotweed, and Sedums. Depending on its neighbours, you can emphasise its tidy or wild appearance and highlight its deep hues.
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Aster dumosus Jenny in pictures
Flowering
Foliage
Plant habit
Botanical data
Aster
dumosus
Jenny
Asteraceae
Michaelmas Daisy, Dwarf aster
Symphyotrichum dumosus
Cultivar or hybrid
Planting and care
Aster dumosus 'Jenny' can be planted in spring or autumn, either in the ground or in a pot. It prefers moist, rich, and well-drained soil, and sunny or semi-shaded exposures. At the end of flowering (early winter), you can cut back the flower stalks to allow the stump to strengthen. This is a perennial that is susceptible to powdery mildew, so be careful not to water its foliage. It can be divided after 3-4 years. This way, you can plant it in multiple locations and allow it to regain its vigour.
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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