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Herbaceous Perennial

Dianthus knappii

yellow pink

D. knappii is a short-lived perennial, growing to 40cm tall, with linear, grey-green leaves and pale yellow, toothed flowers, up to 2cm across, borne on erect stems in summer

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Grey Silver
Summer Yellow Green Grey Silver
Autumn Green Grey Silver
Winter Green Grey Silver
Position
  • Full sun
Aspect

West–facing or East–facing or South–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Caryophyllaceae
Native to the UK
No
Foliage
Evergreen
Habit
Bushy
Genus

Dianthus can be annuals, evergreen perennials or subshrubs with narrow, often greyish leaves and showy flowers that are frequently fragrant

Name status

Correct

Plant range
E Europe

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How to grow

Cultivation

Grow in a well-drained, neutral to alkaline soil in full sun

Propagation

Propagate by seed or by softwood cuttings of non-flowering shoots in summer

Suggested planting locations and garden types
  • Coastal
  • Cottage and informal garden
  • Patio and container plants
  • Gravel garden
  • Cut flowers
  • Banks and slopes
  • Flower borders and beds
  • Garden edging
Pruning

Deadhead regularly to prolong flowering

Pests

Slugs and aphids may be a problem

Diseases

May be subject to a rust, a virus and wilt

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