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Eucalyptus gregsoniana (Wolgan snow gum)

Intermediate
skill rating
1 hour care
per year
4m
Max height
5m
Max spread
10-20 years
To maturity

Plant details

Botanical name

Eucalyptus gregsoniana

Other names

Wolgan snow gum, Eucalyptus pauciflora var. nana, Eucalyptus pauciflora 'Nana', Wolgan dwarf snow gum, Mallee snow gum

Genus

Eucalyptus Eucalyptus

Species

E. gregsoniana - E. gregsoniana is a spreading, evergreen shrub or small tree shoots turning glossy red on the exposed side and elliptic, grey-green juvenile leaves followed by lance-shaped, red-margined, grey-green mature leaves. Clusters of white flowers bloom in late spring and early summer.


Eucalyptus gregsoniana is: Evergreen

Flower

White in Spring; White in Summer

Foliage

Grey-green in All seasons

How to care

Watch out for

Silver leaf , Oedema Silver leaf , Oedema

General care

Pruning

Little pruning required on established trees. Remove damaged, diseased or crossing branches in late winter or early spring.

Propagation methods

Seed


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Where to grow

Eucalyptus gregsoniana (Wolgan snow gum) will reach a height of 4m and a spread of 5m after 10-20 years.

Suggested uses

Architectural, Containers, Flower Arranging, Sub-Tropical

Cultivation

Grows best in fertile, neutral to slightly acid soil that does not dry out. Site in full sun with shelter from cold, drying winds.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Well-drained, Moist but well-drained

Soil pH

Acid, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Tender in frost (H3)

Companion plants

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

Botanical name

Eucalyptus gregsoniana

Other names

Wolgan snow gum, Eucalyptus pauciflora var. nana, Eucalyptus pauciflora 'Nana', Wolgan dwarf snow gum, Mallee snow gum

Genus

Eucalyptus Eucalyptus

Species

E. gregsoniana - E. gregsoniana is a spreading, evergreen shrub or small tree shoots turning glossy red on the exposed side and elliptic, grey-green juvenile leaves followed by lance-shaped, red-margined, grey-green mature leaves. Clusters of white flowers bloom in late spring and early summer.

Foliage

Evergreen


Colour

Flower

White in Spring; White in Summer

Foliage

Grey-green in All seasons


How to care

Watch out for

Specific diseases

Silver leaf , Oedema

General care

Pruning

Little pruning required on established trees. Remove damaged, diseased or crossing branches in late winter or early spring.

Propagation methods

Seed


Monthly care advice


Where to grow

Eucalyptus gregsoniana (Wolgan snow gum) will reach a height of 4m and a spread of 5m after 10-20 years.

Suggested uses

Architectural, Containers, Flower Arranging, Sub-Tropical

Cultivation

Grows best in fertile, neutral to slightly acid soil that does not dry out. Site in full sun with shelter from cold, drying winds.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Well-drained, Moist but well-drained

Soil pH

Acid, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Tender in frost (H3)

USDA zones

Zone 11, Zone 10, Zone 9, Zone 8

Defra's Risk register #1

Plant name

Eucalyptus gregsoniana (Wolgan snow gum)

Common pest name

Eucalyptus rust; Guava rust; Rust of eucalyptus; Rust of guava

Scientific pest name

Puccinia psidii

Type

Fungus

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

Rust fungus affecting members of the myrtle family; including Eucalyptus. Europe wide assessment should be considered; given its spread to areas (i.e. Tasmania) with similar climatic conditions.

Defra's Risk register #2

Plant name

Eucalyptus gregsoniana (Wolgan snow gum)

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.

Defra's Risk register #3

Plant name

Eucalyptus gregsoniana (Wolgan snow gum)

Common pest name

Eucalyptus leaf beetle

Scientific pest name

Paropsisterna selmani

Type

Insect

Current status in UK

Present (Unknown Distribution)

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

3

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

3

General biosecurity comments

Eucalyptus leaf beetle native to Tasmania but now present in Ireland; where it is causing damage to species used for forestry and ornamental purposes. Now detected in the South of England. Statutory action would be taken against findings on commercially traded material. Stakeholders may wish to monitor for its presence in gardens and the wider environment.

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: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) Tell us...
Soil drainage: Well-drained, Moist but well-drained Tell us...
Soil pH: Acid, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: South, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Tender in frost (H3) Tell us...

ARTICLES WITH THIS PLANT

Eucalyptus Plantation

By Worcester-based Grafton Nursery. The first ever Eucalyptus exhibit at Chelsea Flower Show. read more


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