FLASH SALES: 30% off selected plants to prepare your garden for summer! Only until tuesday night
Share your pictures? Hide split images
I have read and agree the terms and conditions of service.

Centaurea dealbata

Centaurea dealbata
Mealy centaury, Persian cornflower, Whitewash cornflower

4,0/5
1 reviews
1 reviews
1 reviews
0 reviews
0 reviews

Planted at the end of September, for now the young plants need time, we will see when it is time to resume shoots.

Laurence, 24/09/2022

Leave a review → View all reviews →

Select delivery date,

and select date in basket

This plant carries a 12 months recovery warranty

More information

This centaury is a cousin of the cornflower. Its bright carmine-pink flowers with a white centre dominate a clump of finely cut leaves with a white and fluffy reverse in summer. It is a hardy perennial that has retained the charm of wild plants. Growing quickly, this sun-loving, generous young plant is irreplaceable in natural, slightly wild flower beds.
Flower size
4 cm
Height at maturity
80 cm
Spread at maturity
50 cm
Exposure
Sun
Hardiness
Hardy down to -29°C
Soil moisture
Dry soil, Moist soil
plantfit-full

Does this plant fit my garden?

Set up your Plantfit profile →

Best planting time March, October
Recommended planting time February to April, September to November
J
F
M
A
M
J
J
A
S
O
N
D
Flowering time May to July, September to October
J
F
M
A
M
J
J
A
S
O
N
D

Description

Centaurea dealbata, also known as Persian cornflower, is a cousin of the cornflower, but it is taller and its flower heads are beautifully coloured in deep carmine-pink and highlighted with white in the centre. The plant forms a clump of greyish-green leaves with a white and woolly underside. It is a hardy perennial that looks stunning in borders and slightly wild flower beds. It grows easily in ordinary soils, even poor, occasionally dry and rocky ones. It is also a beautiful cut flower. 

Native to the mountains of the Caucasus and northern Iran, Centaurea dealbata is an herbaceous perennial plant of the Asteraceae family. This flowering plant reaches a height of 70 to 90cm (28 to 35in) and develops into an erect and dense clump, covered with beautiful dense foliage deeply cut into narrow, pinnate lobes. The slightly hairy foliage is light green with a touch of grey, and is almost silvery on the underside. From June to July, and sometimes again in late summer, inflorescences appear in flower heads resembling cornflowers, 4 to 5cm (2in) wide. These flower heads display a bright carmine-pink to lavender-pink hue, with a paler centre. The nectar-rich and honey-rich flowering attracts many pollinating insects. It is a long-lived perennial that can self-seed in light soil.

Of medium stature, Centaurea dealbata is particularly well suited to perennial borders. It forms patches of vibrant and remarkable colour that will blend well with catmints, globe thistles, ixias (corn lilies), and godetias. It will also look good in a meadow. In this setting, centaureas can be mixed with grasses, sainfoin, phacelia, borage, agrimony, corn marigolds, California poppies, cosmos, and Damask nigellas. The rule of thumb is that the poorer the soil, the more dazzling the effect. It will also be beautiful and perform well in a rock garden. It is an excellent cut flower, for both dried and fresh bouquets.

The name Centaurea comes from the centaur Chiron, who used the flowers of this plant to heal a gaping wound caused by an arrow dipped in the Hydra's blood. This plant now bears his name as the genus name. The specific epithet 'dealbata' is derived from the Latin verb 'dealbare', meaning "to become white", referring to the silver underside of its leaves.

Centaurea dealbata in pictures

Centaurea dealbata (Flowering) Flowering
Centaurea dealbata (Foliage) Foliage
Centaurea dealbata (Plant habit) Plant habit

Flowering

Flower colour pink
Flowering time May to July, September to October
Inflorescence Flower head
Flower size 4 cm
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green

Plant habit

Height at maturity 80 cm
Spread at maturity 50 cm
Growth rate fast

Botanical data

Genus

Centaurea

Species

dealbata

Family

Asteraceae

Other common names

Mealy centaury, Persian cornflower, Whitewash cornflower

Origin

Central Europe

Planting and care

Centaurea dealbata tolerates well-drained, ordinary, light, even poor and chalky soil. It appreciates full sun. This plant thrives in moderately moist to moderately dry soil in summer, but is wary of winter moisture. It is highly adaptable and tolerates short periods of drought and urban pollution quite well. Removing faded inflorescences will encourage flower renewal. Robust and hardy, this plant will thrive in most soil types, in all regions. The plants can be heavily pruned in summer to maintain a compact habit.

Planting period

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

Intended location

Suitable for Meadow, Rockery, Woodland edge
Type of use Border, Edge of border, Slope
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Planting density 7 per m2
Exposure Sun
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Dry soil, Moist soil, Ordinary but well-draining and lightweight soil.

Care

Pruning instructions Remove the faded flowers to encourage a new flowering. Prune the faded flowers as soon as they are no longer decorative, unless you want the plant to self-seed spontaneously.
Pruning Pruning recommended once a year
Pruning time June
Disease resistance Good
Overwinter Can be left in the ground
4/5
No reviews
No reviews

Rockery perennials

Haven't found what you were looking for?