Tasmanian Blue Gum
Eucalyptus globulus
Also known as: Blue Gum, Southern Blue Gum, Eucalyptus
Tasmanian Blue Gum (Eucalyptus globulus) is a fast-growing Australian hardwood widely planted for timber and pulp. The wood offers good strength and a pale, even color suitable for flooring and furniture. Interlocked grain can challenge machining, but it finishes well and is valued for construction and decorative applications.
Botanical Profile
Eucalyptus globulus is a tall evergreen tree native to Tasmania and southeastern Australia, reaching 55–70 meters. It belongs to the Myrtaceae family and has aromatic, blue-green juvenile leaves. One of the most widely planted eucalypts globally for timber and essential oils.
Physical Properties
Heartwood pale yellowish brown to light tan; sapwood similar. Average dried density approximately 680 kg/m³ with Janka hardness of 1,320 lbf. Medium to coarse texture with interlocked or wavy grain. Growth rings often distinct.
Workshop Notes
Blunting Effect
Moderate – interlocked grain dulls edges
Gluing Advice
Good with standard adhesives
Finishing
Good – takes stains and finishes well
Steam Bending
Poor – interlocked grain resists bending
Historical Context
Blue Gum has been exported from Australia since the 19th century and is now cultivated in many temperate regions. Used for railway sleepers, construction, and pulp. Its rapid growth makes it important for plantation forestry worldwide.
Technical Specs
Pale yellowish brown to light tan heartwood; sapwood similar or slightly paler
Widely planted globally; check local sourcing