Philadelphus coronarius (Mock orange)

Botanical name

Philadelphus coronarius

Other names

Mock orange, Common syringa

Genus

Philadelphus Philadelphus

Species

P. coronarius - P. coronarius is a large deciduous upright shrub with mid-green, ovate leaves and heavily scented creamy-white bowl-shaped flowers in late-spring to early-summer.

Native to

Southern Europe

Foliage

Deciduous

Fragrance

The flowers are heavily scented

Habit

Bushy

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Colour

Flower

White, Cream in Spring; White, Cream in Summer

Foliage

Green in Spring; Green in Summer

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How to care

Watch out for

Specific pests

Aphids

Specific diseases

Powdery mildew

General care

Propagation methods

Hardwood cuttings, Softwood cuttings

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Monthly care advice

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Where to grow

Philadelphus coronarius (Mock orange) will reach a height of 2.5m and a spread of 2.5m after 10-20 years.

Suggested uses

Beds and borders, City, Coastal, Hedging/Screens

Cultivation

Plant in moist, well-drained soil in sun or part 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

North, 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 10, Zone 9, Zone 8, Zone 7, Zone 6, Zone 5

Defra's Risk register #1

Plant name

Philadelphus coronarius (Mock orange)

Common pest name

Japanese fruit scale; Mulberry scale; White peach scale

Scientific pest name

Pseudaulacaspis pentagona

Type

Insect

Current status in UK

Absent

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

4

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

3

General biosecurity comments

Scale insect which in favourable conditions may kill trees. There have been a number of findings in the UK but some uncertainty about whether the pest is established. Stakeholder organisations may wish to monitory for its presence.

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/