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Aster amellus Dr Otto Petschek

Aster amellus Dr Otto Petschek
Italian Aster, European Michaelmas Daisy

5,0/5
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The young plant is very green and vigorous. The habit is very functional and will surely be an added bonus during the establishment. Thank you for the care given to my order.

Gabrielle, 08/10/2022

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This plant carries a 12 months recovery warranty

More information

Value-for-money
This intermediate variety has beautiful lavender-blue flowers with a yellow heart in late summer. It will thrive in poor and chalky soil as long as it retains moisture.
Flower size
3 cm
Height at maturity
50 cm
Spread at maturity
45 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Best planting time March to April, September to October
Recommended planting time February to April, September to November
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Flowering time August to September
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Description

Aster 'Dr Otto Petschek' is a medium-sized variety with lavender-blue flowers with yellow centres in late summer. This perennial flowers generously in soft and fresh colours. This aster thrives in poor and limestone soil, as long as it remains moist.

  

Aster amellus belongs to the Asteraceae family. This species is native to Eastern Europe and Turkey. The horticultural variety ‘Dr Otto Petschek’ has an upright, sparsely branched habit. It will reach a height of 50 cm (20in) when in bloom, and will spread over 45 cm (18in), with a moderately fast growth rate. The particularly abundant flowering takes place from August to September. The 3 cm (1in) wide petals are pure lavender-blue while the heart is yellow-orange. This aster is a deciduous perennial with slightly hairy stems. The basal leaves are also slightly hairy, lanceolate and green. This plant spreads through underground woody rhizomes.

 

It is impossible to imagine our gardens without asters. Undemanding, completely hardy and easy to grow, they blend very well with all kinds of perennials. The relatively modest size of this Aster allows you to plant it in pots. The aster genus is extremely diverse in a wide range of colours and all sizes. By choosing different cultivars, it is possible to enjoy these lovely daisy-like flowers from spring until the onset of winter.

Aster amellus Dr Otto Petschek in pictures

Aster amellus Dr Otto Petschek (Flowering) Flowering

Flowering

Flower colour blue
Flowering time August to September
Inflorescence Flower head
Flower size 3 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Plant habit

Height at maturity 50 cm
Spread at maturity 45 cm
Growth rate normal

Botanical data

Genus

Aster

Species

amellus

Cultivar

Dr Otto Petschek

Family

Asteraceae

Other common names

Italian Aster, European Michaelmas Daisy

Origin

Cultivar or hybrid

Product reference888271

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Planting and care

Plant Aster 'Dr Otto Petschek' in autumn or spring in loose, well-drained but moisture-retaining soil, even limestone. It likes the sun but will tolerate partial shade where it will be slightly looser, with bendy stems. Choose a location sheltered from strong winds. It is best to avoid moving it once established as it does not tolerate this well. In a flowerbed, leave at least 50 cm (20in) between plants. Water during heatwaves and consider mulching your perennial flowerbeds in June to maintain maximum soil moisture. Aster amellus is fairly resistant to powdery mildew. You can pinch the stems in the middle of summer to promote flowering. Cut back dried stems in autumn or late winter. Divide clumps every three or four years to ensure they remain floriferous. Do not replant the divisions in the same spot. This aster is not invasive.

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Planting period

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

Intended location

Suitable for Meadow, Rockery
Type of use Edge of border, Container, Slope
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun, Partial shade
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Moist soil, well-draining, rich and light

Care

Pruning instructions Pinch the stems in the middle of summer to promote flowering. Cut back the dry stems at the end of winter.
Pruning Pruning recommended once a year
Pruning time February to March, June to July
Disease resistance Good
Overwinter Can be left in the ground
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