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Photo: Murray Fagg, CC BY 3.0 au (via Wikimedia Commons)

Broad-Leaved Peppermint (Eucalyptus)

Eucalyptus dives

Also known as Peppermint Gum, Peppermint Eucalyptus, Broad-Leaved Peppermint Gum

At a glance
Family
Myrtaceae (myrtle family)
Type
Evergreen tree (sometimes a multi-stemmed mallee on poor soils)
Parts used
Leaves, mainly for steam inhalation and commercial oil distillation
Size
Typically 10 to 25 meters tall in the wild, though cultivated trees are often kept smaller
Bloom
Small creamy-white flower clusters in late summer into autumn
Habitat
Dry, stony slopes and open forest of the tablelands of New South Wales and Victoria, Australia
Acquisition
Grow or buy
This plant in HerbSense

Key benefits

Traditional chest and congestion relief
Historic respiratory steam support
Traditional wound rinse use
Clearing, camphoraceous aromatic comfort

Traditional uses

Long before European settlement, Aboriginal Australians used the leaves of various eucalypts, including this peppermint-scented species, as a wash for wounds and a steam for easing chest and sinus complaints. Colonial settlers took up the practice eagerly, and by the nineteenth century the aromatic, camphor-like leaf had become a household standby for winter colds. Eucalyptus dives later took on a second life in industry, prized above other eucalypts for its high piperitone content, which chemists found useful as a stepping stone to other valuable compounds. Its everyday folk use, though, has always stayed close to the same simple idea, hot steam and fragrant leaves to help clear a heavy head.

How to grow & use it

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Pairs well with
  • Peppermint
  • Thyme
  • Rosemary
Substitutes
  • Eucalyptus globulus
  • Peppermint
Choose it when

When a chest cold has settled in and the air itself seems to need clearing.

Did you know?

During the Second World War, the piperitone-rich oil distilled from Eucalyptus dives leaves became an important industrial starting material for synthesizing menthol and, later, cortisone, work that made this particular eucalyptus far more valuable to chemists than to perfumers.

Safety

Eucalyptus essential oil is toxic if swallowed, even a teaspoon has caused serious poisoning in children, so never take it internally and keep it away from kids. Do not apply undiluted oil to skin, and avoid steam or oil preparations for infants and young children because of the risk of breathing spasms.