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Paeonia delavayi (Delavay peony)

Beginner
skill rating
1 hour care
per year
2.5m
Max height
1.5m
Max spread
10-20 years
To maturity

Plant details

Botanical name

Paeonia delavayi

Other names

Delavay peony

Genus

Paeonia Paeonia

Species

P. delavayi - P. delavayi is a medium deciduous shrub with large leaves divided into leaflets, and deep maroon flowers with yellow stamens.


Paeonia delavayi is: Deciduous

Habit

Erect, Open stems

Awards

RHS AGM (Award of Garden Merit)

Flower

Dark-red in Summer

Foliage

Dark-green in Spring; Dark-green in Summer

How to care

Watch out for

Specific pests

Eelworms (leaf and bud) , Swift moth larvae Eelworms (leaf and bud) , Swift moth larvae

Peony wilt Peony wilt

General care

Propagation methods

Semi-hardwood cuttings


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Where to grow

Paeonia delavayi (Delavay peony) will reach a height of 2.5m and a spread of 1.5m after 10-20 years.

Suggested uses

City, Cottage/Informal, Flower Arranging, Beds and borders, Low Maintenance

Cultivation

Plant in moist, humus-rich, free-draining soil in full sun to partial shade.

Soil type

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

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

South, East, West

Exposure

Sheltered

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

Hardy (H4)

Companion plants

Botanical name

Paeonia delavayi

Other names

Delavay peony

Genus

Paeonia Paeonia

Species

P. delavayi - P. delavayi is a medium deciduous shrub with large leaves divided into leaflets, and deep maroon flowers with yellow stamens.

Foliage

Deciduous

Habit

Erect, Open stems

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

Dark-red in Summer

Foliage

Dark-green in Spring; Dark-green in Summer


How to care

Watch out for

Specific pests

Eelworms (leaf and bud) , Swift moth larvae

Specific diseases

Peony wilt

General care

Propagation methods

Semi-hardwood cuttings


Monthly care advice


Where to grow

Paeonia delavayi (Delavay peony) will reach a height of 2.5m and a spread of 1.5m after 10-20 years.

Suggested uses

City, Cottage/Informal, Flower Arranging, Beds and borders, Low Maintenance

Cultivation

Plant in moist, humus-rich, free-draining soil in full sun to partial shade.

Soil type

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

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

South, East, West

Exposure

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

Defra's Risk register #1

Plant name

Paeonia delavayi (Delavay peony)

Common pest name

Ash yellows

Scientific pest name

Candidatus Phytoplasma fraxini

Type

Phytoplasma

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

Pathogen causing phytoplasma disease of certain tree species in the Americas. EU regulation already provides some mitigation against the risk of introduction; but could be further strengthened.

Defra's Risk register #2

Plant name

Paeonia delavayi (Delavay peony)

Common pest name

Stunt nematode; Tobacco stunt nematode

Scientific pest name

Tylenchorhynchus claytoni

Type

Nematode

Current status in UK

Present (Limited)

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

1

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

3

General biosecurity comments

Polyphagous nematode pest already present in UK; particularly damaging to Azaleas at present; but could move into crops such as maize and forestry crops (Pinus) in the longer term. Need to raise awareness amongst relevant sectors.

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, Well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Partial Shade, Full Sun Tell us...
Aspect: South, East, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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