Tasmanian Blue Gum / Eucalyptus

Eucalyptus globulus
Family: Myrtaceae

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Whole Tree


Angiosperm, Dicot, evergreen (although it drops some leaves throughout the year)


Height: 70 meters in ideal conditions, but ranging from 15-25 meters on average

Identifying Features:

This tree is tall with a straight trunk and thin blue-green leaves at maturity. The leaves may appear light green if they are relatively new, so the average spring tree has a variety of leaf colors. It is an evergreen forest tree that stays green all year and its foliage emits an odor of camphor. Its bark, rough and grayish in color, peels from the trunk and branches in long ribbon strips, giving it a distinct appearance.


This tree prefers subtropical regions with moist soils. It is native to Australia, flourishing in New South Wales, Victoria, and Tasmania. In addition, it is widely cultivated overseas in such countries as Algeria, France, India, Brazil, Spain, Portugal, and the United States.


The Eucalyptus globulus flowers from winter to early summer, manifesting in yellow-white flowers consisting of a spherical cluster of white stamens with no petals. They are followed by the fruit, a warty-surfaced, top-shaped, blue-white capsule with 3-5 openings (called "gum nuts").

Water/Sun Requirements:

The Eucalyptus requires well-drained soil, but can grow in nutritionally poor soil like sand and clay loam. It cannot grow in the shade, as it requires exposure to sun to grow. The Eucalyptus globulus can tolerate drought, as it is classified as semi-arid to normal.

Special Adaptations:

Although native to Australia, it has been widely planted in California and is becoming naturalized to the region, leading Californians to make the incorrect conclusion that it is a native Californian plant. In fact, it has become so established in California that it has spread into native vegetation and now resides near the top of the list of exotic pest plants of greatest concern by the California Exotic Pest Plant Council.

Other Info:

In Spain and Portugal especially, the pale yellow sap from this tree is harvested for perfume and soap.
It is grown in India for firewood.
In Portugal, this species is regarded as an ideal honey plant and Portuguese farmers like to raise their bees near it.
Mexicans chew the leaves to strengthen their gums.
Its essential oil is widely used in cough drops and as an antiseptic, rubefacient, and a stimulant.
The timber is used worldwide for carpentry, construction, and plywood.
This species is one of the best eucalypts for pulp production.
Its leaves have proven antibiotic activity.
All over the world it is used as a household remedy for all kinds of diseases and minor complaints.
Its essential oil is proven to cause intestinal irritation in large quantities.

Reference Sources/Links:

Created by Sarah M. 2007