• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Dianthus plumarius 'Sweetness'

clove pink 'Sweetness'

clove pink 'Sweetness'

© RHS

  • Other common names clove pink 'Sweetness'

  • Family Caryophyllaceae

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

  • Details 'Sweetness' is a dwarf, evergreen perennial with narrow, grey-green leaves, creating a spreading mat with multi-flowered stems to 15cm in height. The highly-scented, bicolour flowers, to 5cm wide, are saucer-shaped with fringed petals, 5cm wide, in a range of colours from white, through pale-pink to dark-magenta pink. Flower centres are of a contrasting, darker shade of pink to the main petal

Characteristics

  • Foliage Evergreen

  • Habit Mat forming

  • Fragrance Flower

  • 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)

    H7

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing or East-facing

  • Exposure Exposed or Sheltered

Soil

  • Sand

    Sand

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureWell-drained

  • SoilSand, Chalk, Loam

  • pHAlkaline, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in a well-drained, neutral to alkaline soil in full sun. Prefers a soil enriched with well-rotted manure or garden compost and an application of a balanced fertiliser in spring

Propagation Propagate by seed sown in spring, or by softwood cuttings of non-flowering shoots in summer or by layering after flowering

Suggested planting locations and garden types Banks and Slopes Flower borders and beds Ground Cover Drought Resistant Cut Flowers Garden Edging City & Courtyard Gardens Coastal Cottage & Informal Garden Gravel Garden Rock Garden Patio & Container Plants

How to care

Pruning Deadhead regularly to prolong flowering

Pests Slugs and aphids may be a problem

Diseases May be subject to a rust, a virus and Fusarium wilt

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