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Philadelphus palmeri (Palmer's mock orange)
1 hour care
per year
per year
1m
Max height
Max height
1m
Max spread
Max spread
5-10 years
To maturity
To maturity
Plant details
Botanical name
Philadelphus palmeri
Other names
Palmer's mock orange, Palmer mock orange, Palmer's mockorange
Genus
Philadelphus Philadelphus
Species
P. palmeri - P. palmeri is a compact, bordeline hardy, deciduous to semi-evergreen shrub with arching branches bearing ovate, mid- to dark green leaves and, in early summer, fragrant, white flowers with prominent, golden-yellow stamens
Philadelphus palmeri is: Deciduous
Fragrance
The flowers are strongly fragrant.
Habit
Compact, Arching
Flower
White in Summer
Foliage
Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn
How to care
Watch out for
Specific pests
Aphids Aphids
Powdery mildew Powdery mildew
General care
Pruning
Pruning group 2.
Propagation methods
Hardwood cuttings, Softwood cuttings
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Where to grow
Philadelphus palmeri (Palmer's mock orange) will reach a height of 1m and a spread of 1m after 5-10 years.
Suggested uses
Woodland, Low Maintenance, Coastal, Beds and borders
Cultivation
Grow in any moderately fertile, well-drained or moist but well-drained soil in sun or partial shade. Protect from frost or grow in a container and overwinter under glass.
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
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Tender in frost (H3)
Companion plants
Botanical name
Philadelphus palmeri
Other names
Palmer's mock orange, Palmer mock orange, Palmer's mockorange
Genus
Philadelphus Philadelphus
Species
P. palmeri - P. palmeri is a compact, bordeline hardy, deciduous to semi-evergreen shrub with arching branches bearing ovate, mid- to dark green leaves and, in early summer, fragrant, white flowers with prominent, golden-yellow stamens
Foliage
Deciduous
Fragrance
The flowers are strongly fragrant.
Habit
Compact, Arching
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Colour
Flower
White in Summer
Foliage
Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn
How to care
Watch out for
Specific pests
Specific diseases
General care
Pruning
Pruning group 2.
Propagation methods
Hardwood cuttings, Softwood cuttings
Monthly care advice
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Where to grow
Philadelphus palmeri (Palmer's mock orange) will reach a height of 1m and a spread of 1m after 5-10 years.
Suggested uses
Woodland, Low Maintenance, Coastal, Beds and borders
Cultivation
Grow in any moderately fertile, well-drained or moist but well-drained soil in sun or partial shade. Protect from frost or grow in a container and overwinter under glass.
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
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Tender in frost (H3)
USDA zones
Zone 10, Zone 9, Zone 8
Defra's Risk register #1
Plant name
Philadelphus palmeri (Palmer's 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: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/
In order to add a note on this plant, please add this plant to your plant lists.
| 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: | Sheltered | Tell us... |
| Hardiness: | Tender in frost (H3) | Tell us... |
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