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Aster ageratoides Harry Schmidt

Aster ageratoides Harry Schmidt
Japanese Aster, White Michaelmas Daisy, Asian Starwort

3,8/5
10 reviews
2 reviews
3 reviews
3 reviews
2 reviews

Bucketed young plant, a bit scrawny and delicate.

Andrée , 09/10/2023

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This plant carries a 12 months recovery warranty

More information

Not very demanding and resistant to powdery mildew, this dwarf and very compact variety transforms into a real flowering cushion of small pale lilac stars with a small amber centre from the end of summer. Its dense and regular habit and its abundant flowering will bring a very neat touch to the borders of heavier perennials. This aster appreciates sunny situations and well-drained but moist soil.
Flower size
2 cm
Height at maturity
40 cm
Spread at maturity
30 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time February to April, September to November
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Flowering time September to October
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Description

Low-maintenance and resistant to powdery mildew, Aster ageratoides Harry Schmidt is an excellent perennial that will find its place in all gardens. This dwarf variety is very compact and transforms into a true cushion of pale lilac star-shaped flowers with a small amber centre for 2 months starting from the end of summer. Its dense and regular silhouette and abundant flowering will bring a very neat touch to the beds of heavier perennials. This very hardy aster appreciates sunny locations and well-drained but moist soil.

Aster ageratoides is a perennial plant native to northern Myanmar, southwestern China, and Tibet. It belongs to the Asteraceae family. The 'Harry Schmidt' variety stands out for its small size and very compact habit. This plant forms a regular and suckering stump with upright, rigid, and close-growing stems, bearing deciduous foliage that is slightly rough and matte-green. The mature plant will form a bushy and round clump, reaching a height of 40 cm (16 in) and a diameter of 30 cm (12 in). In early autumn, starting from September, numerous small flowers with very fine ligulate petals appear, in a pretty pastel-lilac shade that makes the foliage disappear.

Plant Aster ageratoides Harry Schmidt in any type of soil; it even tolerates poor-quality soil such as backfill soil or compact and clayey soils, with its only requirement being not to compete with other perennials with a strong root system. In the garden, for example, associate it with perennial geraniums or light grasses such as Stipa tenuifolia or Muhlenbergia capillaris. It also forms beautiful bluish-pink flows between large rocks in a rockery. Its abundant and delicate flowering attracts pollinating insects. The flowering stems are very attractive in a vase in a floral arrangement, along with September roses.

The Aster genus offers a large number of species, represented by a multitude of floriferous varieties. They come in all sizes, in an extremely rich range of colours. Several species are associated with each season.

Aster ageratoides Harry Schmidt in pictures

Aster ageratoides Harry Schmidt (Flowering) Flowering
Aster ageratoides Harry Schmidt (Foliage) Foliage

Flowering

Flower colour mauve
Flowering time September to October
Inflorescence Flower head
Flower size 2 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green

Plant habit

Height at maturity 40 cm
Spread at maturity 30 cm
Growth rate fast

Botanical data

Genus

Aster

Species

ageratoides

Cultivar

Harry Schmidt

Family

Asteraceae

Other common names

Japanese Aster, White Michaelmas Daisy, Asian Starwort

Origin

Cultivar or hybrid

Product reference807501

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Planting and care

Install Aster ageratoides Harry Schmidt in any soil; it even accepts poor-quality soil such as backfill soil, or compact and clayey soils. But while it adapts to lean and relatively dry soils, it will require fertilisation in April, more frequent watering in summer, and mulching to maintain freshness at its base. In mass plantings, leave at least 50 cm (20 in) spacing between plants. At the end of flowering, cut back the clump to 10 cm (4 in). Divide clumps every 2 to 3 years to maintain vigorous roots and propagate this wonderful plant throughout the garden.

Plant it in a sunny location that allows it to express its full potential. Its robust foliage appears 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.

1
€7.50 Bag
6
€19.50
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€14.50 Each

Planting period

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

Intended location

Suitable for Meadow, Woodland edge
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, ordinary but well-worked 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
Disease resistance Good
Overwinter Can be left in the ground
3,8/5

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