Sanguisorba obtusa

RHS Plant Profile

Japanese burnet

Herbaceous Perennial

Buy this from Plant Nurseries
20 Suppliers

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

Position

Full sun, Partial shade

Soil Types

Clay, Loam

Max Height

1-1.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.5-1 metres
Max Height: 1-1.5 metres

Growing Conditions

Clay Loam

Moisture: Moist but well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: West–facing or South–facing or East–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: 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: 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