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Aster lateriflorus Horizontalis

Aster lateriflorus Horizontalis
Calico Aster, Starved Aster, White Woodland Aster

4,9/5
10 reviews
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The young plants received are perfect, and already replanted, awaiting the next steps.

Pierre, 08/04/2021

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This plant carries a 12 months recovery warranty

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A queen of autumn perennials with numerous small white flowers with a purple heart, on stems with horizontal branching - a special feature for an aster. Ideal at the end of the season to brighten up the garden.
Flower size
2 cm
Height at maturity
60 cm
Spread at maturity
60 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Best planting time February to April
Recommended planting time February to April, September to November
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Flowering time September to October
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Description

Aster lateriflorus 'Horizontalis' is a perennial with small white flowers with a purple heart, blooming in large numbers on stems with horizontal branching - a special feature for an aster. Ideal at the end of the season to brighten up the garden.

Aster lateriflorus 'Horizontalis' reaches a height of 60 cm (24in) and its dark green leaves are slender with smooth margins and pointed ends. Flowering takes place during the months of September to October, when the aster is studded with white flowers resembling small daisies, on ramified stems of a similar purple shade to the heart of the flowers. A remarkable plant, Aster lateriflorus 'Horizontalis' will bring some fresh air to the garden before winter. Its low bushy habit makes it a perfect candidate for border plantings, alongside plants with colorful foliage in autumn, such as grasses. Also consider container cultivation, so you can enjoy the bright flowering up close to the house.

Easy to grow, hardy and fairly resistant to diseases, this variety of aster will be satisfied with a sunny site in well-aerated, fresh and well-drained soil.

The genus Aster is extremely diverse and comes in a wide range of colours, and varieties of all sizes. Depending on the cultivars, it is even possible to spread out their flowering from spring to the end of autumn; amateur gardeners who love these pretty daisies with their rustic look can enjoy them for a large part of the year.

Aster lateriflorus Horizontalis in pictures

Aster lateriflorus Horizontalis (Foliage) Foliage

Flowering

Flower colour white
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 dark green

Plant habit

Height at maturity 60 cm
Spread at maturity 60 cm
Growth rate normal

Botanical data

Genus

Aster

Species

lateriflorus

Cultivar

Horizontalis

Family

Asteraceae

Other common names

Calico Aster, Starved Aster, White Woodland Aster

Origin

Cultivar or hybrid

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Planting and care

Plant Aster lateriflorus 'Horizontalis' in autumn or spring in a regular, rich, and well-worked soil. To retain moisture at the base, mulch your flowerbed from June onwards and water in case of heatwaves. It appreciates a sunny exposure but tolerates partial shade, where it will have a slightly looser habit. Once established, avoid moving as it doesn't like change. In a flowerbed, maintain a spacing of at least 50 cm (20in) between plants. Aster lateriforus are quite resistant to diseases, but if you notice powdery mildew appearing on the leaves, remove them immediately. Divide the clumps every three years to keep them floriferous. Do not replant the divisions in the same place, and give them a rich soil.

Planting period

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

Intended location

Suitable for Shaded rockery, Woodland edge, Undergrowth
Type of use Border
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Amateur
Planting density 3 per m2
Exposure Sun, Partial shade
Soil pH Any
Soil type Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Moist soil, rich and well-drained

Care

Pruning instructions Remove the stems and wilted 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
4,9/5
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