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Aster novae-angliae Septemberrubin

Aster novae-angliae Septemberrubin
New England Aster, Michaelmas Daisy

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An excellent perennial shrub exceeding 1m (3ft) in height, bearing lovely clusters of ruby red flowers from September until the first frost.
Flower size
4 cm
Height at maturity
1.20 m
Spread at maturity
50 cm
Exposure
Sun
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Recommended planting time February to May, September to November
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Flowering time August to September
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Description

Aster novae-angliae 'Septemberrubin' is a tall bushy perennial reaching over 1m (3ft) in height, bearing pretty clusters of ruby red flowers from September until the first frosts.

Essential in autumn gardens, Aster novae-angliae is a very hardy perennial that forms a bushy clump and grows to 1.20m (4ft) in height.

It develops deciduous, simple, lanceolate green leaves, measuring 8cm (3in) long. In late summer it produces, on woody stems, ruby red flower heads with yellow-orange anthers. These late summer flowers are highly sought after for floral arrangements.

Very easy to grow, Aster novae-angliae 'Septemberrubin' appreciates rich, moist, and well-drained soil in full sun. Although it can tolerate shade, the foliage of this variety is susceptible to powdery mildew, so avoid excessively shady sites. Cut back faded stems at the end of winter and divide the clump if necessary in early spring.

The Septemberrubin Aster is used in borders, to cover fences, or for making bouquets, often paired with perennial geraniums or grasses.

Aster novae-angliae Septemberrubin in pictures

Aster novae-angliae Septemberrubin (Flowering) Flowering
Aster novae-angliae Septemberrubin (Foliage) Foliage

Flowering

Flower colour red
Flowering time August to September
Flower size 4 cm
Good for cut flowers Cut flower blooms
Flowering description Clusters of flower heads with colourful ligules, linear bracts in an awl shape. Bristled fruits.

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Plant habit

Height at maturity 1.20 m
Spread at maturity 50 cm
Growth rate normal

Botanical data

Genus

Aster

Species

novae-angliae

Cultivar

Septemberrubin

Family

Asteraceae

Other common names

New England Aster, Michaelmas Daisy

Origin

Cultivar or hybrid

Product reference72102

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Planting and care

Plant Aster novae-angliae Septemberrubin in well-drained soil, covering the top of the root ball with 3 cm (1in) of earth. It is not very demanding and can grow in any type of soil. Waterlogged soils in winter can kill it however. Asters are more or less susceptible to mildew. You can divide them at the end of autumn or beginning of spring if they become too large.

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Planting period

Recommended planting time February to May, September to November

Intended location

Suitable for Shaded rockery, Woodland edge, Undergrowth
Type of use Back of border
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Beginner
Planting density 5 per m2
Exposure Sun
Soil pH Neutral, Calcareous
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 to the ground in late winter. Use shears or a hedge trimmer for larger areas. Divide the clumps every 3 to 4 years to maintain vigorous stumps. A yearly application of organic fertiliser in spring helps revive the brilliance of the flower heads.
Pruning Pruning recommended once a year
Pruning time February to April
Overwinter Can be left in the ground

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