Sydney Blue Gum

Eucalyptus saligna · Myrtaceae
50m
Mature height
0
Councils: no permit needed
0
Councils: exempt under a height limit
20
Councils: permit required
Sydney Blue Gum (Eucalyptus saligna) growing in Sydney
Sydney Blue Gum ยท typical mature form

Do you need a permit?

Sydney Blue Gum is a protected tree in effectively every council Pro Climbing Tree Services covers. Expect to need a tree permit, or a development application where the property is heritage listed or in a heritage conservation area.

How to identify it

A tall straight trunk with smooth blue grey to white bark that sheds in long ribbons, usually over a short stocking of rough bark at the base. Adult leaves are narrow, lance shaped and glossy dark green above with a paler underside. Small white flowers appear in clusters of seven to eleven through summer, followed by small woody gumnuts.

Where it grows in Sydney

Common through the Northern Beaches, Ku-ring-gai and Hornsby on sheltered slopes and in gullies with deeper soils. Widely retained as a canopy tree in older suburbs such as Turramurra, Pymble, Wahroonga and St Ives, and a frequent street and reserve tree across the North Shore.

Common problems

  • Very large mature size that outgrows suburban blocks
  • Limb shed during hot dry weather and after storms
  • Heavy leaf, bark and gumnut litter into gutters and pools
  • Root interference with driveways, paving and older clay pipes
  • Ribbon bark and canopy load make it a bushfire consideration close to homes

What removal involves

Almost always a full climbing and sectional dismantle rather than a straight fell, because of size and proximity to structures. Expect crane or elevated work platform hire on constrained blocks, substantial green waste volume and a large diameter stump. Protected in virtually every council on this list, so allow application time before the job is booked.

Council permit rules, council by council

Status below is for a tree on private land that has passed the council’s size threshold. Heritage items, heritage conservation areas, significant tree registers, biodiversity mapping and conditions of development consent override every exemption shown here.

Council
Status
What it means
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Confirm with Council
Council holds its species exemptions in a document rather than on its website, so confirm this species with Council before treating removal as exempt. Size thresholds apply in the meantime. Official rules
Permit required
Council does not run a species exemption list. A permit is required once the tree passes the size threshold, and each tree is assessed on its own merits. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules
Confirm with Council
Council holds its species exemptions in a document rather than on its website, so confirm this species with Council before treating removal as exempt. Size thresholds apply in the meantime. Official rules
Permit required
Not on Council's exempt species list, so a tree permit is required once the tree passes the size threshold. Official rules

Frequently asked questions

Can I remove a Sydney Blue Gum without council approval?

In almost every case, no. It is a native species and is not on any exempt species list across the councils Pro Climbing Tree Services works in. You will need a tree permit, or a development application if the property is heritage listed or in a heritage conservation area.

Is a Sydney Blue Gum dangerous?

A healthy, well maintained specimen is not inherently dangerous, but the species does shed limbs in hot weather and can fail in storms. An arborist inspection will identify decay pockets, included bark unions and deadwood that raise the risk.

Can I just prune it back hard instead?

Hard topping or lopping a Blue Gum creates weakly attached regrowth and long term decay. Crown thinning or selective reduction within the 10% canopy limit most councils allow is the safer approach.

Commonly confused with

Both tall forest eucalypts. Blackbutt keeps rough dark bark on the lower trunk, Blue Gum sheds to smooth

Related species

Important note on council rules

This encyclopedia is a practical guide for Sydney property owners, not legal advice. Council tree rules change, and exemptions are frequently overridden by heritage listings, heritage conservation areas, significant tree registers, biodiversity mapping, endangered ecological communities and conditions attached to development consent. Always confirm the current rules with your council for your specific address before any tree work begins, or ask us to check it for you.
Photo by John Robert McPherson via Wikimedia Commons, CC BY-SA 4.0

Quick facts

Botanical name
Eucalyptus saligna
Also known as
Blue Gum
Family
Myrtaceae
Origin
Native to the NSW coast and ranges
Mature height
30m to 50m
Canopy spread
15m to 25m
Growth rate
Fast
Foliage
Evergreen, lance shaped, glossy green
Typical lifespan
200 years plus
Root habit
Deep with wide lateral spread

Need council approval? We handle the application.

Most councils will not accept a removal application without species identification, photographs and a stated reason. We prepare and lodge the lot, then carry out the work once it is approved. One call, one invoice, no forms to work out yourself.

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