• 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

Cerastium tomentosum

dusty miller

dusty miller

© � RHS 2003

  • Other common names dusty miller

    Jerusalem star
    snow plant
    wooly mouse-ear chickweed

    see more
  • Genus Cerastium can be annuals or mat-forming perennials, with simple leaves and star-shaped 5-petalled white flowers

  • Family Caryophyllaceae / Caryophyllaceae

  • Details C. tomentosum is a vigorous mat-forming perennial to 15cm in height, with narrow, white-hairy leaves and star-shaped white flowers 2cm across, with notched petals, in late spring and summer

  • Plant range Eur. & W As. (mts)


  • Foliage Deciduous

  • Habit Mat forming



  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered or Exposed


  • Chalk


  • Chalk


  • Chalk


  • Chalk


  • MoistureWell-drained

  • SoilChalk, Clay, Sand, Loam

  • pHAcid, Alkaline, Neutral


  • Ultimate height

    0.1-0.5 metres

  • Ultimate spread

    1-1.5 metres

  • Time to ultimate height

    2-5 years

How to grow

Cultivation Ideal plant for carpeting dry, sunny banks or gravel gardens

Propagation Propagate by seed, division or stem tip cuttings

Suggested planting locations and garden types Flower borders and beds Ground Cover Banks and Slopes Gravel Garden

How to care

Pruning No pruning required

Pests Generally pest free

Diseases Generally disease free

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