Achillea umbellata

RHS Plant Profile
umbellate yarrow

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Synonyms

Achillea argentea misapplied

Plants for pollinators
Herbaceous Perennial

This clump-forming perennial is native to Greece and grows to 15-20cm tall by 15-30cm wide, with erect stems, finely divided grey-green foliage and sprays of small white flowers from June to August

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

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

Growing Conditions

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

Position

Full sun
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed
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)
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asteraceae
Native to GB/Ireland
No
Foliage
Deciduous, Semi evergreen
Habit
Clump forming
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
Name Status
Correct
Plant Range
Greece

How to Grow

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

Propagation

Propagate by division in spring

Suggested planting locations and garden types

  • Cottage and informal garden
  • Gravel garden
  • Rock garden
  • Wildlife gardens
  • Flower borders and beds

Pruning

Cut back untidy foliage in spring; deadheading may encourage repeat flowering in the summer

Pests

May be susceptible to aphids

Diseases

May be susceptible to powdery mildews