Collection of 3 New England asters - Grand Autumn Asters
Collection of 3 New England asters - Grand Autumn Asters
Aster novae-angliae Rosa Sieger Purple Dome, Andenken an Alma Pötschke
Grad Autumn Aster
Finally, some beautiful bushes. Matching colors. Everything grew well, even the one that seemed dead upon arrival (no green). All the plants were first potted to help them recover.
Dani, 12/09/2025
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This plant carries a 12 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
This Collection of 3 New England asters offers a colourful, abundant and prolonged flowering during several weeks at the end of the season. In large flower beds, these tall perennials allow you to compose a magnificent autumn symphony in pink, purple and red. The New England asters are quite resistant to powdery mildew and they thrive in humid climates and heavy, clayey and fertile soils. They also offer better performance in flower beds than the New Belgium asters.
The collection consists of:
- 1 New England Aster 'Rosa Sieger', which is distinguished by the power of its flowering and the delicacy of its pink colour. From late summer to the first frost, this very beautiful plant is covered with bouquets of small daisies that range from fresh pink to very pale pink. This medium-sized variety measures between 90 cm (35in) and 1.20 m (4ft) in height when in flower.
- 1 New England Aster 'Purple Dome' with bright purple-violet flowers. Unlike other New England Asters, this one is quite compact, it won't exceed 50 cm (20in) in height and width. It should preferably be placed in front of the other tall asters.
- 1 New England Aster 'Andenken an Alma Pötschke' with raspberry-red flowers. It is one of the best varieties among the reds and its offspring is numerous. It is a tall aster that can reach a height of 1.50 m (5ft) when in flower.
Labeled separately
These beautiful asters are planted at the back of flower beds to extend the flowering season in the garden until autumn, but you can also plant them in large pots to brighten up the surroundings of your house. In the ground, create a country atmosphere around your asters with tall perennials (Gauras, Rudbeckia, perennial sunflowers, inulas) and small bushes (landscape roses, shrubby salvias), or even grasses such as Miscanthus or tufted hair grasses that appreciate the same growing conditions.
Flowering
Foliage
Plant habit
Botanical data
Aster
novae-angliae
Rosa Sieger Purple Dome, Andenken an Alma Pötschke
Asteraceae
Grad Autumn Aster
Cultivar or hybrid
Planting and care
Plant the young plant New England Asters in autumn or spring in ordinary, rich and well-worked soil, keeping it moist. It can withstand temperatures as low as -30 °C (1°F). It prefers a sunny exposure, but can tolerate partial shade where it will have a slightly looser habit. It is necessary to avoid strong winds that would flatten the clumps. It may be useful to stake the stems in certain cases. Once established, it should not be moved, as it does not appreciate changes. In a flower bed, leave at least 50 cm (20in) spacing between the plants. This plant does not tolerate competition from other roots at all. Mulch the soil from June onwards and water in case of heatwaves. New England Asters are not susceptible to powdery mildew. Divide the clumps every three years to keep them flowering well. Do not replant the divisions in the same place and give them a rich soil.
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).
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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.