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Magnolia 'George Henry Kern' (Magnolia 'George Henry Kern')

Beginner
skill rating
1 hour care
per year
4m
Max height
3m
Max spread
10-20 years
To maturity

Plant details

Botanical name

Magnolia 'George Henry Kern'

Other names

Magnolia 'George Henry Kern', Magnolia stellata 'George Henry Kern'

Genus

Magnolia Magnolia

Variety or Cultivar

'George Henry Kern' _ 'George Henry Kern' is a compact, rounded to spreading, deciduous shrub or small tree with ovate, dark green leaves and, in spring, rose-pink buds opening to light pink flowers as or before the leaves emerge.


Magnolia 'George Henry Kern' is: Deciduous

Fragrance

Flower

Habit

Rounded, Spreading

Awards

RHS AGM (Award of Garden Merit)

Flower

White, Pale-pink in Spring

Foliage

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

How to care

Watch out for

Specific pests

Horse chestnut scale Horse chestnut scale

Diseases

Generally disease free.

Coral spot , Honey fungus , Phytophthora root diseases Coral spot , Honey fungus , Phytophthora root diseases

General care

Pruning

Prune in midsummer when in full leaf.

Propagation methods

Semi-ripe cuttings, Softwood cuttings


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Where to grow

Magnolia 'George Henry Kern' (Magnolia 'George Henry Kern') will reach a height of 4m and a spread of 3m after 10-20 years.

Suggested uses

Architectural, City, Cottage/Informal, Flower Arranging, Low Maintenance, Containers, Wallside and trellises

Cultivation

Plant in acid to neutral, moist but well-drained soil in full sun or partial shade. Flowers may be damaged by late frosts.

Soil type

Clay, Loamy, Sandy

Soil drainage

Moist but well-drained

Soil pH

Acid, Neutral

Light

Partial Shade, Full Sun

Aspect

South, West

Exposure

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

Magnolia 'George Henry Kern'

Other names

Magnolia 'George Henry Kern', Magnolia stellata 'George Henry Kern'

Genus

Magnolia Magnolia

Variety or Cultivar

'George Henry Kern' _ 'George Henry Kern' is a compact, rounded to spreading, deciduous shrub or small tree with ovate, dark green leaves and, in spring, rose-pink buds opening to light pink flowers as or before the leaves emerge.

Native to

Garden origin

Foliage

Deciduous

Fragrance

Flower

Habit

Rounded, Spreading

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

White, Pale-pink in Spring

Foliage

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


How to care

Watch out for

Specific pests

Horse chestnut scale

Diseases

Generally disease free.

Specific diseases

Coral spot , Honey fungus , Phytophthora root diseases

General care

Pruning

Prune in midsummer when in full leaf.

Propagation methods

Semi-ripe cuttings, Softwood cuttings


Monthly care advice


Where to grow

Magnolia 'George Henry Kern' (Magnolia 'George Henry Kern') will reach a height of 4m and a spread of 3m after 10-20 years.

Suggested uses

Architectural, City, Cottage/Informal, Flower Arranging, Low Maintenance, Containers, Wallside and trellises

Cultivation

Plant in acid to neutral, moist but well-drained soil in full sun or partial shade. Flowers may be damaged by late frosts.

Soil type

Clay, Loamy, Sandy

Soil drainage

Moist but well-drained

Soil pH

Acid, Neutral

Light

Partial Shade, Full Sun

Aspect

South, 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

Magnolia 'George Henry Kern' (Magnolia 'George Henry Kern')

Common pest name

Scientific pest name

Phytophthora kernoviae

Type

Oomycete

Current status in UK

Present (Limited)

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

2

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

4

General biosecurity comments

Pathogen of certain tree and shrub species; subject to a containment strategy the UK.

Defra's Risk register #2

Plant name

Magnolia 'George Henry Kern' (Magnolia 'George Henry Kern')

Common pest name

Japanese long scale; Japanese maple scale; Long scale; Japanese; Pear white scale

Scientific pest name

Lopholeucaspis japonica

Type

Insect

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

Regulated only on Citrus at present; regulation on other hosts needs to be considered. Only likely to be a pest under glass in UK.

Defra's Risk register #3

Plant name

Magnolia 'George Henry Kern' (Magnolia 'George Henry Kern')

Common pest name

; Apple bark beetle; Asian ambrosia beetle; Granulate ambrosia beetle

Scientific pest name

Xylosandrus crassiusculus

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

Ambrosia beetle which can affect a wide range of broadleaved trees; widespread in Africa; Asia and parts of the US; with outbreaks in France and Italy. The UK climate is unlikely to be suitable for the pest to thrive and cause significant damage but needs to be investigated through research. A Europe-wide PRA will help inform the case for EU regulation. Premises involved in importing wood and host plants from Italy in particular; where official measures are not being taken; should source material carefully.

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: Clay, Loamy, Sandy Tell us...
Soil drainage: Moist but well-drained Tell us...
Soil pH: Acid, Neutral Tell us...
Light: Partial Shade, Full Sun Tell us...
Aspect: South, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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