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Philadelphus 'Dame Blanche' (Mock orange 'Dame Blanche')

Beginner
skill rating
1 hour care
per year
2m
Max height
2m
Max spread
5-10 years
To maturity

Plant details

Botanical name

Philadelphus 'Dame Blanche'

Other names

Mock orange 'Dame Blanche'

Genus

Philadelphus Philadelphus

Variety or Cultivar

'Dame Blanche' _ 'Dame Blanche' is a bushy, compact, deciduous shrub with arching branches, peeling black-brown bark, oval, dark green leaves and fragrant, semi-double white flowers in early to midsummer.


Philadelphus 'Dame Blanche' is: Deciduous

Fragrance

The flowers are highly scented

Habit

Arching, Branching, Bushy, Compact

Flower

White in Summer

Foliage

Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn

How to care

Watch out for

Specific pests

Aphids Aphids

Powdery mildew Powdery mildew

General care

Pruning

Cut back after flowering to strong buds or young lower growth. On mature shrubs, remove a quarter of old branches to the base of the plant.

Propagation methods

Hardwood cuttings, Softwood cuttings


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Where to grow

Philadelphus 'Dame Blanche' (Mock orange 'Dame Blanche') will reach a height of 2m and a spread of 2m after 5-10 years.

Suggested uses

Coastal, Beds and borders, Low Maintenance

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)

Companion plants

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

Botanical name

Philadelphus 'Dame Blanche'

Other names

Mock orange 'Dame Blanche'

Genus

Philadelphus Philadelphus

Variety or Cultivar

'Dame Blanche' _ 'Dame Blanche' is a bushy, compact, deciduous shrub with arching branches, peeling black-brown bark, oval, dark green leaves and fragrant, semi-double white flowers in early to midsummer.

Foliage

Deciduous

Fragrance

The flowers are highly scented

Habit

Arching, Branching, Bushy, Compact


Colour

Flower

White in Summer

Foliage

Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn


How to care

Watch out for

Specific pests

Aphids

Specific diseases

Powdery mildew

General care

Pruning

Cut back after flowering to strong buds or young lower growth. On mature shrubs, remove a quarter of old branches to the base of the plant.

Propagation methods

Hardwood cuttings, Softwood cuttings


Monthly care advice


Where to grow

Philadelphus 'Dame Blanche' (Mock orange 'Dame Blanche') will reach a height of 2m and a spread of 2m after 5-10 years.

Suggested uses

Coastal, Beds and borders, Low Maintenance

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 'Dame Blanche' (Mock orange 'Dame Blanche')

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

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Philadelphus June 2018

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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: North, South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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