• AGM plants

    AGM plants have been through a rigourous 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

Achillea ptarmica (The Pearl Group) 'The Pearl' (clonal) (d)

Sneezewort 'The Pearl'

Sneezewort 'The Pearl'

© � RHS

  • Other common names Sneezewort 'The Pearl'

  • Synonyms Achillea 'The Pearl'

  • Genus Achillea can be mat-forming or upright perennials, mostly herbaceous, with sometimes aromatic, pinnately divided or simple and toothed leaves and flattened clusters of small, daisy-like flower-heads

  • Family Asteraceae / Asteraceae

  • Species 'The Pearl' is a vigorous perennial forming a spreading clump, with narrow dark green leaves and pure white, double flower-heads

Characteristics

  • Foliage Deciduous

  • Habit Spreading _ Branched#Spreading / Branched

  • Toxicity

Colour

Sunlight

  • Partial Shade

  • Aspect East-facing or West-facing or North-facing

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Loam

  • Chalk

    Chalk

  • Chalk

    Sand

  • MoistureMoist but well-drained

  • SoilLoam, Chalk, Sand

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height

    0.5-1 metres

  • Ultimate spread

    0.5-1 metres

  • Time to ultimate height

    2-5 years

How to grow

Cultivation Requires a more moist soil than most other achilleas but not waterlogged, does best in partial shade

Propagation Propagate by division in spring

Suggested planting locations and garden types Flower borders and beds Cut Flowers Gravel Garden Coastal Prairie Planting Cottage & Informal Garden Wildlife Gardens

How to care

Pruning Cut back untidy foliage in spring

Pests Can get aphids

Diseases May suffer from powdery mildews

Advertise here