Arctium minus

RHS Plant Profile
lesser burdock

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lesser burdock visionspictures.com

Other common names

common burdock, cuckoo button, cyngaf bychan

Synonyms

Lappa minor

Plants for pollinators
Annual Biennial
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An erect, branching plant to 1.5m, arising from a basal whorl of large green leaves that have wavy margins. In summer purplish flowerheads are held in clusters on the leafy main branches. Characteristic brown, spiny, hooked seedheads persist thoughout winter

Position

Full sun, Partial shade

Soil Types

Sand, Loam, Clay, Chalk

Max Height

1-1.5 metres

Max Spread

1-1.5 metres

Size

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

Growing Conditions

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

Position

Full sun Partial shade
Aspect
East–facing or North–facing or West–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)
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asteraceae
Native to GB/Ireland
Yes
Foliage
Deciduous
Habit
Clump forming
Genus
Arctium are robust, tap-rooted biennials with large downy leaves and solitary or clustered thistle-like flower-heads turning into burr-like fruiting heads
Name Status
Correct
Plant Range
Europe, N. Africa

How to Grow

Cultivation

Ideally grow in moist soil in full sun or partial shade. It will tolerate a wide range of soils

Propagation

Propagate by seed; sow in situ in the autumn or early spring. Alternatively, sow in a tray and transplant before the tap-root develops. To improve germination pre- soak or scarify the seed

Suggested planting locations and garden types

  • Wildlife gardens
  • Wildflower meadow

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free