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Sanguisorba obtusa (Japanese burnet)

Beginner
skill rating
1 hour care
per year
0.6m
Max height
0.6m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Sanguisorba obtusa

Other names

Japanese burnet, Japanese bottlebrush

Genus

Sanguisorba Sanguisorba

Species

obtusa - S. obtusa is a clump-forming herbaceous perennial with pinnate grey-green foliage and bottlebrush-like spikes of
pink flowers from mid-summer onwards.


Sanguisorba obtusa is: Deciduous

Habit

Clump-forming

Flower

Pink in Summer

Foliage

Grey-green in Summer; Grey-green in Autumn

How to care

Watch out for

Pests

Generally pest free

Diseases

Generally disease free

General care

Pruning

Cut back after flowering or leave seed heads for winter interest.

Propagation

Divide congested plants in spring or autumn.

Propagation methods

Division, Seed


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Where to grow

Sanguisorba obtusa (Japanese burnet) will reach a height of 0.6m and a spread of 0.6m after 2-5 years.

Suggested uses

Beds and borders, City, Cottage/Informal, Low Maintenance, Prairie planting, Wildlife

Cultivation

Grow in sun or partial shade in moderately fertile soil that is reliably moist.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

South, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Sanguisorba obtusa

Other names

Japanese burnet, Japanese bottlebrush

Genus

Sanguisorba Sanguisorba

Species

obtusa - S. obtusa is a clump-forming herbaceous perennial with pinnate grey-green foliage and bottlebrush-like spikes of
pink flowers from mid-summer onwards.

Foliage

Deciduous

Habit

Clump-forming


Colour

Flower

Pink in Summer

Foliage

Grey-green in Summer; Grey-green in Autumn


How to care

Watch out for

Pests

Generally pest free

Diseases

Generally disease free

General care

Pruning

Cut back after flowering or leave seed heads for winter interest.

Propagation

Divide congested plants in spring or autumn.

Propagation methods

Division, Seed


Monthly care advice


Where to grow

Sanguisorba obtusa (Japanese burnet) will reach a height of 0.6m and a spread of 0.6m after 2-5 years.

Suggested uses

Beds and borders, City, Cottage/Informal, Low Maintenance, Prairie planting, Wildlife

Cultivation

Grow in sun or partial shade in moderately fertile soil that is reliably moist.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

South, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 8, Zone 7, Zone 6, Zone 5, Zone 4

Defra's Risk register #1

Plant name

Sanguisorba obtusa (Japanese burnet)

Common pest name

grape ground pearl

Scientific pest name

Margarodes vitis

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

5

General biosecurity comments

Main pathway; Vitis spp. plants for planting; already prohibited. However; further consideration of other pathways is required.

Defra's Risk register #2

Plant name

Sanguisorba obtusa (Japanese burnet)

Common pest name

Lance nematode; Nematode; Lance

Scientific pest name

Hoplolaimus spp.

Type

Nematode

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

Nematode species potentially affecting a wide variety of crops; prohibition of soil likely to mitigate risk substantially; keep under review in light of interceptions or findings should they occur in the EU.

Defra's Risk register #3

Plant name

Sanguisorba obtusa (Japanese burnet)

Common pest name

Scientific pest name

Orgyia thyellina

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

3

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Polyphagous moth pest from Eastern Asia which could be damaging to broadleaf and coniferous species if introduced to the UK; as well as having human health impacts. The main pathway is likely to be on goods (including non-plant material) imported from Eastern Asia and awareness raising with the main industry sectors is recommended.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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This plant likes... Garden match
Soil types: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) Tell us...
Soil drainage: Moist but well-drained, Moisture-retentive Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Partial Shade, Full Sun Tell us...
Aspect: South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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