Bistorta amplexicaulis 'Elworthy Candy'

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Herbaceous Perennial

A hardy perennial to around 120cm in height, prized for its slender spikes of soft purple pink flowers that bloom from midsummer to autumn. Ideal for borders and naturalistic planting, it attracts pollinators and provides long-lasting colour with minimal maintenance

Position

Full sun, Partial shade

Soil Types

Clay, Loam, Sand

Max Height

1-1.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity
2–5 years
Max Spread
1-1.5 metres
Max Height
1-1.5 metres

Growing Conditions

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

Position

Full sun Partial shade
Aspect
East–facing or North–facing or South–facing or West–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)
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Polygonaceae
Native to GB/Ireland
No
Foliage
Semi evergreen
Habit
Clump forming
Genus
A genus of herbaceous, rhizomatous perennials with erect, unbranched stems, bearing short terminal spikes of small, white or pink, bell-shaped flowers
Name Status
Unresolved

How to Grow

Cultivation

Grow in any moist soil in full sun or partial shade. Substantial mounds of foliage steadily increase in size, needing space and careful siting. See how to grow bistort for further advice

Propagation

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

Suggested planting locations and garden types

  • Cottage and informal garden
  • Wildlife gardens
  • Banks and slopes
  • Bedding
  • Flower borders and beds
  • Ground cover
  • Underplanting of roses and shrubs

Pruning

Cut back after flowering

Pests

Generally pest-free

Diseases

Generally disease-free