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Herbaceous Perennial

Sanguisorba obtusa

Japanese burnet

A clump-forming perennial with attractively glaucous foliage. Pink bottlebrush flowers emerge from red buds in June and July

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Size
Ultimate height
1–1.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Clay
Loam
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Blue Green
Summer Pink Blue Green
Autumn Blue Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

West–facing or South–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Rosaceae
Native to the UK
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

Correct

Plant range
Japan to Russia

How to grow

Cultivation

Grow in a moderately fertile, moist but well-drained soil that does not dry out; best in full sun or partial shade

Propagation

Propagate by seed in autumn. Propagate by division in spring

Suggested planting locations and garden types
  • Cottage and informal garden
  • Underplanting of roses and shrubs
Pruning

Cut back in winter

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

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