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Aster novi-belgii Schone von Dietlikon

Aster novi-belgii Schone von Dietlikon
New York Aster, Michaelmas Daisy

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Excellent recovery. I'm looking forward to the flowering in autumn!

Claire, 31/03/2021

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This plant carries a 12 months recovery warranty

More information

Great perennial, extremely floriferous with a bushy habit, bearing deep blue-purple flowers heads between September and October.
Flower size
4 cm
Height at maturity
1.20 m
Spread at maturity
40 cm
Exposure
Sun
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Best planting time February to March, September to October
Recommended planting time February to April, September to November
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Flowering time September to October
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Description

Aster novi-belgii 'Schone von Dietlikon' is a robust perennial that blooms between September and October, with a multitude of single blue-purple flowers with a yellow heart resembling small daisies. Its spreading crown produces branched stems, adorned with lanceolate, dark green, glossy leaves.

Aster novi-belgii 'Schone von Dietlikon' is an easy-to-grow, tall aster reaching 1.20m (4ft) in height which brings life to the garden in late summer and early autumn when most flowering perennials have faded. Aster novi-belgii, along with Aster novae-angliae, are the two main species of tall asters. They belong to the family of Asteraceae or Composites, which mostly includes herbaceous plants. The Aster genus offers a large number of species, represented by a multitude of floriferous varieties. They come in all sizes, with an extremely diverse range of colours.

This variety with its beautiful vibrant colours thrives in sunny or slightly shaded areas, sheltered from strong winds, in rich and moist soil. You can plant it at the back of flower beds, alongside chrysanthemums and other late-flowering perennials such as echinaceas, helianthus, or even with heucheras which create an excellent contrast of warm colours, or with grasses with fine foliage. These asters are also excellent cut flowers.

Several species of Aster are associated with each season, for spring, Aster alpinus or Aster tongolensis; for summer, Aster amellus or Aster frikartii; for autumn, Aster cordifolius, Aster dumosus, Aster ericoides, Aster lateriflorus, Aster novae-angliae, or Aster novi-belgii, for example

Aster novi-belgii Schone von Dietlikon in pictures

Aster novi-belgii Schone von Dietlikon (Foliage) Foliage

Flowering

Flower colour blue
Flowering time September to October
Inflorescence Flower head
Flower size 4 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour dark green

Plant habit

Height at maturity 1.20 m
Spread at maturity 40 cm
Growth rate normal

Botanical data

Genus

Aster

Species

novi-belgii

Cultivar

Schone von Dietlikon

Family

Asteraceae

Other common names

New York Aster, Michaelmas Daisy

Origin

North America

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Planting and care

Plant Aster novi-belgii 'Schöne von Dietlikon' in the autumn or spring in rich and moist soil. It appreciates a sunny exposure but tolerates partial shade. We advise you to protect it from strong winds that could flatten the clumps. Aster novi-belgii is particularly sensitive to powdery mildew, which is a fungus that forms a whitish deposit on the foliage and buds, weakening the plant. As a preventive measure, maintain a spacing of at least 70 cm (28in) between the plants, regularly clean around the plants, and remove affected parts (when possible) as soon as the first signs of the disease appear. You can treat preventively from May, preferably with organic products. During the growing season, you can pinch the tips of the shoots 15 cm (6in) above the ground towards the end of May (Chelsea chop) to make the clump more compact. To promote the appearance of new shoots, cut the stems of faded flowers. To prevent them from breaking under their own weight, it is also advisable to stake tall asters that become top-heavy when flowering.

Planting period

Best planting time February to March, September to October
Recommended planting time February to April, September to November

Intended location

Suitable for Meadow
Type of use Back of border
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Beginner
Planting density 3 per m2
Exposure Sun
Soil pH Any
Soil type Clayey (heavy), Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Moist soil, rich and well-drained

Care

Pruning instructions Remove the stems and faded flowers at ground level at the end of winter. Use shears or a hedge trimmer for large areas. Divide the clumps every 3 to 4 years to maintain vigorous crowns. A yearly application of organic fertilizer in spring will revive the brilliance of the flowers.
Pruning Pruning recommended once a year
Pruning time February to April
Disease resistance Good
Overwinter Can be left in the ground
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