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Achillea 'Hella Glashoff' AGM

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© RHS

Characteristics

Plant type

Herbaceous Perennial

Habit

Bushy

Resilience

Hardiness

H7 (very hardy)

Colour

Flower

Pale Yellow in Summer
Yellow in Autumn

Foliage

Green in Autumn, Spring, Summer and Winter

Size

Ultimate height

0.1-0.5 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

yarrow 'Hella Glashoff'

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

'Hella Glashoff' is a compact, free-flowering perennial with finely dissected leaves and flattened heads of lemon-yellow flowers which fade to creamy-yellow

How to grow

Sunlight

  • Full sun

Aspect

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

Cultivation

An open sunny position in a moist but well-drained soil is best, but it will tolerate most situations apart from heavy, wet clay in winter

Soil

  • Well-drained or Moist but well-drained
  • Acid, Alkaline or Neutral
  • Sand, Chalk or Loam

Propagation

Propagate by division in spring

Suggested planting locations and garden types

Cottage/Informal Garden, Flower borders and beds or Prairie Planting


How to care

Pruning

Cut back untidy foliage in spring

Pests

Can get aphids

Diseases

May suffer from powdery mildews