Paeonia delavayi var. delavayi f. lutea (Yellow tree peony)

Botanical name

Paeonia delavayi var. delavayi f. lutea

Other names

Yellow tree peony, Tibetan peony, Lemon-yellow tree peony, Paeonia lutea, Paeonia delavayi var. lutea, Paeonia delavayi f. lutea, Yellow delavayi peony

Genus

Paeonia Paeonia

Species

P. delavayi var. delavayi f. lutea - P. delavayi var. delavayi f. lutea is an upright, deciduous shrub with pinnate leaves divided into ovate to lance-shaped, lobed, pointed, dark green leaflets and bowl-shaped, yellow, yellow-green, or orange flowers in late spring.

Native to

China

Foliage

Deciduous

Habit

Upright

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Colour

Flower

Yellow in Spring

Foliage

Dark-green in Spring; Dark-green in Summer

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How to care

Watch out for

Specific pests

Eelworms (leaf and bud) , Swift moth larvae

Specific diseases

Peony wilt

General care

Pruning

Pruning group 1.

Propagation methods

Semi-hardwood cuttings

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Monthly care advice

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Where to grow

Paeonia delavayi var. delavayi f. lutea (Yellow tree peony) will reach a height of 2m and a spread of 1.5m after 10-20 years.

Suggested uses

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

Cultivation

Grow in humus-rich, moist but well-drained or well-drained soil in full sun or partial shade with shelter from cold, drying winds.

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, Zone 4

Defra's Risk register #1

Plant name

Paeonia delavayi var. delavayi f. lutea (Yellow tree 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 var. delavayi f. lutea (Yellow tree 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: 7^th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/