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Centaurea montana Coerulea

Centaurea montana Coerulea
Perennial Cornflower, Great Blue-bottle, Mountain Bluet, Mountain Centaury

8 reviews
4,4/5
6 reviews
0 reviews
1 reviews
1 reviews
0 reviews

The plants arrived damaged; I wrote to you at the time with no response from you until today. The plants were not well secured. The branches of the centaureas were broken. A young plant was in a very poor condition (originally).

Françoise R., 22/10/2017

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This plant carries a 12 months recovery warranty

More information

A beautiful alpine flower with blue petals, intricately shaped and flared.
Flower size
5 cm
Height at maturity
45 cm
Spread at maturity
60 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -34°C
Soil moisture
Moist soil
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Recommended planting time March to May
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Flowering time May to June
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Description

The Perennial Cornflower, Centaurea montana coerulea, is a perennial plant of alpine origin, with woolly stems and leaves.

The flowers, deep blue with a violet heart, bloom in May and June on stems about forty cm long. It is a classic flower of old gardens, where it brought a touch of colour to the "flowerless month" (June, between spring and summer bloomings), and was appreciated as a cut flower, fresh or dried.

It is now making a strong comeback, thanks to the astonishing shape of its flowers with elegant spreading heads.

 

 

 

Centaurea montana Coerulea in pictures

Centaurea montana Coerulea (Flowering) Flowering
Centaurea montana Coerulea (Foliage) Foliage
Centaurea montana Coerulea (Plant habit) Plant habit

Flowering

Flower colour blue
Flowering time May to June
Flower size 5 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green

Plant habit

Height at maturity 45 cm
Spread at maturity 60 cm
Growth rate normal

Botanical data

Genus

Centaurea

Species

montana

Cultivar

Coerulea

Family

Asteraceae

Other common names

Perennial Cornflower, Great Blue-bottle, Mountain Bluet, Mountain Centaury

Origin

Cultivar or hybrid

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Planting and care

Plant your Centaurea in a moist but well-drained, neutral or alkaline soil, even a poor soil, in full sun or partial shade. You will need to stake the stems before flowering and prune them once the flowers have faded. Like most alpine plants, it is sensitive to excessive winter moisture.

Planting period

Recommended planting time March to May

Intended location

Suitable for Shaded rockery, Woodland edge, Undergrowth
Type of use Border
Hardiness Hardy down to -34°C (USDA zone 4) Show map
Ease of cultivation Beginner
Planting density 4 per m2
Exposure Sun, Partial shade
Soil pH Neutral, Calcareous
Soil type Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Moist soil, Well-drained

Care

Pruning instructions Cut the withered stems in summer to promote a second flowering in late summer.
Pruning Pruning recommended once a year
Pruning time July to August
Overwinter Can be left in the ground
4,4/5
6 reviews
No reviews
1 reviews
1 reviews
No reviews

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