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Aster dumosus Peter Harrison

Aster dumosus Peter Harrison
Michaelmas Daisy, Dwarf aster

4,1/5
4 reviews
4 reviews
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1 reviews

Very beautiful young plant that attracts lots of butterflies! I highly recommend it!

Katia, 22/09/2019

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This plant carries a 12 months recovery warranty

More information

A dwarf perennial aster with a compact habit in the shape of a cushion. It produces mauve-pink flowers with yellow centres between August and October.
Flower size
5 cm
Height at maturity
35 cm
Spread at maturity
35 cm
Exposure
Sun, Partial shade
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 August to October
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Description

Aster dumosus 'Peter Harrison' (syn. Aster novi-belgii 'Peter Harrison' and Symphyotrichum novi-belgii 'Peter Harrison') is a robust perennial with a compact habit. It blooms between August and October with a multitude of mauve-pink flowers resembling small daisies. Its running stump emits ramified stems, adorned with lanceolate, dark green and glossy leaves.

Aster dumosus 'Peter Harrison' is a small aster, 40cm (16in) tall, that brings the garden to life in late summer and early autumn. It thrives in a sunny or slightly shaded position in rich and moist soil. Easy to grow, 'Peter Harrison' is ideal for creating numerous autumnal scenes at a time when most flowering perennial plants have faded. You can place them both at the forefront of a bed and in a flowering pot. Combine it with grasses with slender foliage, tall sedums, and colourful heucheras. It can also beautifully brighten up a border, a wall, or a rockery.

Asters belong to the Asteraceae family, which mainly consists of herbaceous plants. The genus offers a large number of species, represented by a multitude of floriferous varieties. They come in all sizes, with an extremely rich range of colours. Each season, there are several species to choose from, including Aster alpinus or A. tongolensis for spring asters, A. amellus or A. frikartii for summer asters, and A. cordifolius, A. dumosus, A. ericoides, A. lateriflorus, A. novae-angliae, or A. novi-belgii for autumn asters.

Aster dumosus Peter Harrison in pictures

Aster dumosus Peter Harrison (Foliage) Foliage

Flowering

Flower colour pink
Flowering time August to October
Inflorescence Flower head
Flower size 5 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour dark green

Plant habit

Height at maturity 35 cm
Spread at maturity 35 cm
Growth rate normal

Botanical data

Genus

Aster

Species

dumosus

Cultivar

Peter Harrison

Family

Asteraceae

Other common names

Michaelmas Daisy, Dwarf aster

Origin

Cultivar or hybrid

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Planting and care

Plant in autumn or spring in a bed or border, in rich soil that is not too dry or wet. It prefers a sunny exposure but can tolerate partial shade. In a bed, maintain a spacing of at least 30cm (12in) between the plants. Mulch the soil from the end of spring and water during dry spells, taking care not to wet the foliage to limit the occurrence of powdery mildew, to which asters are susceptible. At the end of flowering, cut back the clump to 10cm (4in). Divide the clumps every 2 to 3 years to maintain vigorous plants, more resistant to powdery mildew.

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, Rockery
Type of use Edge of border
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Beginner
Planting density 5 per m2
Exposure Sun, Partial shade
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 Cut back to 10cm (4in) at the end of flowering.
Pruning Pruning recommended once a year
Pruning time October to November
Disease resistance Good
Overwinter Can be left in the ground
4,1/5
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