Serratula tinctoria var. seoanei

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<em>Serratula</em> <em>tinctoria</em> var. <em>seoanei</em> RHS

Synonyms

Serratula shawii
Serratula seoanei

Herbaceous Perennial
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A deciduous clump-forming perennial with neat, deeply cut dark green foliage and erect, wiry stems to 45cm, bearing uneven flowerheads of smallish mauve-purple thistle-shaped flowers to 4cm long, in late summer. Compact and poised

Position

Full sun, Partial shade

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
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
West–facing or East–facing or South–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
Asteraceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Matforming
Genus
Serratula are perennial plants with distinctly serrate but not spiny leaves, and knapweed-like heads of usually purplish flowers set in numerous, overlapping involucral bracts, often brownish and chaffy
Name Status
Correct
Plant Range
France, Portugal, Spain

How to Grow

Cultivation

Grow in well-drained soil in full sun or partial shade

Propagation

Propagate by seed in autumn or spring, propagate by division in autumn or spring

Suggested planting locations and garden types

  • Gravel garden
  • Cottage and informal garden
  • Underplanting of roses and shrubs
  • Banks and slopes
  • Flower borders and beds
  • Garden edging
  • Wall side borders

Pruning

No pruning required

Pests

Generally pest-free

Diseases

May be susceptible to powdery mildews