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Achillea × lewisii 'King Edward' AGM

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© RHS 2002

Characteristics

Plant type

Alpine/Rockery or Herbaceous Perennial

Habit

Mat forming

Toxicity

Resilience

Hardiness

H5 (hardy - cold winter)

Colour

Flower

Cream and Pale Yellow in Summer

Foliage

Grey/Silver in Autumn, Spring, Summer and Winter

Size

Ultimate height

Up to 10 cm

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

yarrow 'King Edward'

Family

Asteraceae


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

'King Edward' is a compact, spreading perennial to 10cm in height, with narrow, silvery-grey leaves which often persist through the winter. Compact heads of small, buff-yellow flowers in early summer, fading to cream with age

Synonym(s)

  • Achillea 'King Edward'

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing, West-facing or East-facing
  • Exposed or Sheltered

Cultivation

Grows best in moist but well-drained soil although will tolerate a wide range of conditions. Deadhead after flowering

Soil

  • Well-drained
  • Alkaline or Neutral
  • Chalk or Sand

Propagation

Propagate by division in spring

Suggested planting locations and garden types

Rock Garden, Gravel Garden, Coastal, Cottage/Informal Garden, Wildlife Gardens or Patio/Container Plants


How to care

Pruning

Cut back untidy foliage in spring

Pests

Can get aphids

Diseases

May suffer from powdery mildews