Sanguisorba officinalis 'Japan'

RHS Plant Profile
great burnet 'Japan'
Plants for pollinators
Herbaceous Perennial

A clump-forming deciduous perennial to 60-90cm tall, with deeply dissected, greyish-green leaves composed of leaflets, and bearing tall stems with clusters of small dark crimson egg-shaped flowerheads during late summer and autumn

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

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

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Rosaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
Sanguisorba are rhizomatous herbaceous perennials with attractive, pinnate leaves and branched stems bearing terminal spikes of small fluffy flowers with conspicuous stamens
Name Status
Unresolved

How to Grow

Cultivation

Grow in a moderately fertile, moist but well-drained soil that does not dry out, in full sun or partial shade. May need support (see staking perennials) and the rhizomes may spread and have the potential to become nusiance so site with care

Propagation

Propagate by division in spring or autumn

Suggested planting locations and garden types

  • Cottage and informal garden
  • Prairie planting
  • Wildflower meadow
  • Wildlife gardens
  • Flower borders and beds

Pruning

No pruning required, tidy after flowering if necessary

Pests

Generally pest-free

Diseases

Generally disease-free