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Aster ageratoides Stardust

Aster ageratoides Stardust
Japanese Aster, White Michaelmas Daisy, Asian Starwort

4,8/5
3 reviews
1 reviews
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My planter survived the heatwave of summer 2022 and the asters have multiplied. Buds are appearing, I am very pleased.

Stephanie, 10/04/2023

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This plant carries a 12 months recovery warranty

More information

Value-for-money
Low-maintenance and resistant to powdery mildew, this variety has a suckering stump from which numerous white lilac flowers emerge in late summer, forming small clustered daisies.
Flower size
2 cm
Height at maturity
60 cm
Spread at maturity
40 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Recommended planting time February to April, September to November
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Flowering time August to October
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Description

Aster ageratoides Stardust is a hardy perennial plant forming a compact bush with an excellent appearance. The white-lilac flowering in small daisies spreads over almost three months, from August to October. Its matte-green foliage is resistant to powdery mildew. Strong, hardy, and not very demanding on soil quality, this aster with a slightly wild look will thrive in full sun. As such, it will find its place in all gardens.

Aster ageratoides Stardust is native to Korea. It belongs to the Asteraceae family. It forms a suckering stump with very regular upright, stiff, and tight stems, carrying deciduous, slightly rough, matte-green foliage. Quite early on in late summer, from August onwards, the flowers appear with very fine ligulate petals, in a pretty, white-lilac colour.

Plant Aster ageratoides Stardust in any type of soil; it even tolerates poor-quality soil such as backfill soil or compact and clayey soils. Plant it in a sunny position that will allow it to express its full potential. Its robust foliage seems very resistant to powdery mildew, even in hot weather. Its only requirement is not to compete with other perennials with a strong root system. Prune dry branches in late winter.

Still relatively unknown among amateur gardeners, this slightly wild aster deserves to be more widely used in gardens. It is perfect for accompanying other perennials, preferably in sunny borders.

Aster ageratoides Stardust in pictures

Aster ageratoides Stardust (Flowering) Flowering
Aster ageratoides Stardust (Foliage) Foliage

Flowering

Flower colour white
Flowering time August to October
Flower size 2 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green

Plant habit

Height at maturity 60 cm
Spread at maturity 40 cm
Growth rate fast
Suckering/invasive plant

Botanical data

Genus

Aster

Species

ageratoides

Cultivar

Stardust

Family

Asteraceae

Other common names

Japanese Aster, White Michaelmas Daisy, Asian Starwort

Origin

Cultivar or hybrid

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Planting and care

Install Aster ageratoides Stardust in any soil; it even accepts poor-quality soil such as backfill soil, or compact and clayey soils. Plant it in a sunny location that will allow it to express its full potential. Its robust foliage seems to be very resistant to powdery mildew, even in hot weather. Its only requirement is not to compete with other perennials with a strong root system. Prune dry branches in winter.

Planting period

Recommended planting time February to April, September to November

Intended location

Suitable for Shaded rockery, Woodland edge, Undergrowth
Type of use Border, Slope
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Amateur
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), Stony (poor and well-drained)
Soil moisture Moist soil

Care

Pruning instructions Remove faded stems and flowers at the end of winter.
Pruning Pruning recommended once a year
Pruning time March to April
Overwinter Can be left in the ground
4,8/5
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