• 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

Selinum wallichianum

Wallich milk parsley

Wallich milk parsley

© � RHS 1969

  • Other common names Wallich milk parsley

  • Synonyms Selinum tenuifolium
    Selinum wallichianum subsp. tenifolium

  • Genus Selinum are tap-rooted herbaceous perennials with finely dissected leaves and large, flattened umbels of tiny flowers

  • Family Apiaceae / Apiaceae

  • Species S. wallichianum is a clump-forming perennial with large, triangular, 2 to 3-pinnate leaves and large umbels of white flowers in summer and autumn

  • Plant range Asia

Characteristics

  • Foliage Deciduous

  • Habit Clump-forming

Colour

Sunlight

  • Full Sun

  • Partial Shade

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

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Sand

  • Chalk

    Loam

  • Chalk

    Chalk

  • Chalk

    Clay

  • MoistureMoist but well-drained

  • SoilSand, Loam, Chalk, Clay

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height

    1-1.5 metres

  • Ultimate spread

    0.1-0.5 metres

  • Time to ultimate height

    2-5 years

How to grow

Cultivation Grow in moderately fertile, moist but well-drained soil in full sun or partial shade

Propagation Propagate by seed in pots in a cold frame as soon as seed is ripe; prick out into deep containers to avoid tap root damage. Propagate by division in early spring but take care as it resents disturbance

Suggested planting locations and garden types Flower borders and beds Cottage & Informal Garden Architectural Wildlife Gardens

How to care

Pruning Remove faded flowerheads and cut back dying foliage in autumn

Pests Slugs and snails may be a problem

Diseases May be subject to powdery mildews in dry conditions

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