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Collector's item

Kalimeris pinnatifida Hortensis

Kalimeris pinnatifida var. hortensis
Mongolian Aster

4,7/5
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On the 3 young plants received, only one was correct. They are planted, but will they take root?

Laurence, 30/08/2022

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This plant carries a 12 months recovery warranty

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Value-for-money
This hardy and robust perennial offers a beautiful and abundant summer flowering, which is fresh and vibrant. Its numerous small double flowers succeed each other from the beginning of summer and continue until September. They are white with a yellow centre. It boasts finely cut foliage. It is perfect for creating charming and delicate bouquets.
Flower size
2 cm
Height at maturity
60 cm
Spread at maturity
50 cm
Exposure
Sun
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Best planting time March, September
Recommended planting time February to April, September to November
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Flowering time June to September
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Description

Kalimeris pinnatifida 'Hortensis' boasts a summer flowering of an unparalleled freshness. Its countless small double flowers are white with a creamy yellow heart. These delicate flowers and finely cut green foliage bring charm to borders from June to September.

 

This kalimeris is a medium-sized perennial. It reaches 60 to 70cm (24 to 28in) in height and spreads over 50cm (20in) wide. Its erect stems bear finely cut deciduous leaves. Small but numerous, they cover the clump and form a green background that welcomes an abundnce of flowers from late spring. The blooms are similar to those of asters, in the form of small daisies measuring 2 to 3cm (1in) in diameter. They have a fluffy pale-yellow heart and a row of graceful, fine and long white florets. This pretty clump is perfect at the front or in the centre of borders. It will provide flowers during the summer season without too much difficulty. Kalimeris is indeed a robust perennial. It is hardy (it easily withstands temperatures below -15°C (5°F)) and requires little monitoring. Removing faded flowers will be sufficient.

This is a perennial that appreciates full sun, but will tolerate partial shade. It prefers ordinary, well-drained soils with a tendency to be moist. Once established, it can tolerate some drought.

 

The intermediate size of Kalimeris pinnatifida 'Hortensis' means it can easily fit into many borders. Plant it at the back in small gardens or at the front of larger ensembles. Its blurred silhouette brings lightness to natural and wild gardens and fits in between yarrows, scabious, and at the base of Rosa 'Nevada'. However, it also works well in groups, forming a beautiful cloud, just surrounded by grasses.

Kalimeris pinnatifida Hortensis in pictures

Kalimeris pinnatifida Hortensis (Flowering) Flowering
Kalimeris pinnatifida Hortensis (Foliage) Foliage

Flowering

Flower colour white
Flowering time June to September
Inflorescence Solitary
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 50 cm
Growth rate normal

Botanical data

Genus

Kalimeris

Species

pinnatifida

Cultivar

var. hortensis

Family

Asteraceae

Other common names

Mongolian Aster

Origin

East Asia

Planting and care

Easy to grow, Kalimeris pinnatifida 'Hortensis' is very tolerant. It grows in all exposures, preferring the sun but tolerating partial shade.

It appreciates ordinary to rich, well-drained and slightly moist soils.

It withstands frosts of -15°C (5°F) and is therefore suitable for many climates.

Removing faded flowers as they appear will encourage new blooms.

Planting period

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

Intended location

Suitable for Meadow
Type of use Border
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun
Soil pH Neutral, Calcareous
Soil type Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Moist soil, rather well-draining and moist

Care

Pruning No pruning necessary
Disease resistance Very good
Overwinter Can be left in the ground
4,7/5
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