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Herbaceous Perennial

Dianthus 'Duchess of Westminster' (M)

An evergreen perennial with thick robust grass like blue-green leaves. An heirloom cultivar with scent large flowers, that are fully double and ruffled, light salmon pink which fade to pale pink. The Malmaison carnation can struggle with a cold and wet winter, growing in a container will make it easier to move to a warmer location over winter, where you could keep it flowering if you wish. This lovely pink is also Verticilum wilt resistant

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Ultimate height

0.1–0.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Loam

Sand

Moisture

Well–drained

pH

Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

East–facing or South–facing or West–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Caryophyllaceae
Native to GB / Ireland: No
Foliage: Evergreen
Habit: Matforming
Potentially harmful: Humans/Pets: Skin allergen, wear gloves and other protective equipment when handling. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Dianthus can be annuals, evergreen perennials or subshrubs with narrow, often greyish leaves and showy flowers that are frequently fragrant
Name status: Accepted

How to grow

Cultivation

Grow in a well-drained, neutral to alkaline soil in full sun. Plants will benefit from being divided about every five years

Propagation

Propagate by softwood cuttings of non-flowering shoots in summer (Dianthus cuttings are known as pipings) or by layering after flowering or by division in spring

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Patio and container plants
Cut flowers
Flower borders and beds

Pruning

Deadhead regularly to prolong flowering

Pests

May be susceptible to slugs and aphids

Diseases

May be susceptible to powdery mildews, a rust, a virus and fusarium wilt

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