Ligusticopsis wallichiana

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Wallich milk parsley

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Wallich milk parsley visionspictures.com
Wallich milk parsley visionspictures.com

Synonyms

Selinum wallichianum
Cortia wallichiana
Selinum wallichianum subsp. tenifolium
Selinum tenuifolium

Award of Garden Merit
Herbaceous Perennial
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A rare, clump-forming perennial with spreading, lacy, fern-like green foliage on stout, purple-flushed green stems. Large umbels of clusters of tiny white flowers, flushed with purple at the base, appear in summer and autumn. Seedheads provide winter interest

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
1-1.5 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered
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)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Apiaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
A genus of flowering perennials, native to the Himalayas, China and Myanmar, with feathery, divided green foliage and umbels of white flowers on tall stems
Name Status
Correct
Plant Range
Asia

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

  • Cottage and informal garden
  • Wildlife gardens
  • Architectural
  • Flower borders and beds

Pruning

Remove faded flowerheads and cut back dying foliage in autumn

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to powdery mildews in dry conditions