Australia has one of the world's most distinctive botanical landscapes — and its native plants produce some of the most complex, interesting essential oils on earth. They've been used by Aboriginal Australians for tens of thousands of years, were among the first exports from the new colony, and today are found in everything from pharmaceutical products to high-end perfumery. Here's a guide to the ones that matter most for home fragrance.
Why Australian native oils are different.
Most of the essential oils familiar to Western consumers — lavender, rose, jasmine, peppermint — come from European or Middle Eastern plants bred over centuries for fragrance and medicinal yield. Australian native oils come from an entirely different botanical lineage, shaped by the oldest and most nutrient-poor soils on the planet.
The result is oils with unusual chemical profiles — often higher in unique compounds not found elsewhere, more complex in their aromatic structure, and distinctively "dry" in character. They don't smell imported. They smell like this place.
The oils, one by one.
Eucalyptus
Eucalyptus radiata / E. globulus / E. citriodora — and over 700 other speciesAustralia has more eucalyptus species than the rest of the world combined. The oil quality and character varies dramatically between species — which is why "eucalyptus oil" on a label tells you almost nothing without the species name.
Eucalyptus radiata (narrow-leaved peppermint) is widely considered the best for home fragrance — its 1,8-cineole content gives it the classic clean, medicinal eucalyptus note, but it's softer and less harsh than the globulus species used in industrial products. E. citriodora (lemon-scented gum) has a distinctly citrus-forward character and is often used in blends that need brightness without true citrus notes.
The eucalyptus in Bushborn diffusers is sourced from the same timber that forms our bases — the oil and the vessel come from the same tree lineage.
Fragrance notes: clean, camphoraceous, medicinal, slightly herbal. Pairs with: lemon myrtle, cedarwood, spearmint.Lemon Myrtle
Backhousia citriodora — subtropical rainforest, QLD and NSWLemon myrtle is native to the subtropical rainforests of Queensland and northern New South Wales. Its oil has the highest citral content of any plant on earth — higher than lemon itself, higher than lemongrass — which gives it an intensely clean, bright, lemon-lime character that doesn't fade the way citrus peel oils do.
It was a staple food flavouring for Aboriginal Australians long before European contact, and today it's one of the most commercially significant native Australian oils, used in everything from cooking to cosmetics. In home fragrance it works as both a top note (bright, immediate, attention-catching) and as a mid-note anchor when the concentration is lower.
Fragrance notes: intensely citrus, clean, slightly sweet, herbal undertone. Pairs with: eucalyptus, cedarwood, native spearmint.Australian Sandalwood
Santalum spicatum — Western Australian arid zonesIndian sandalwood (Santalum album) is the variety most people know — creamy, milky, almost vanillic. Australian sandalwood from Western Australia is its cousin, but with a drier, woodier, more austere character. It has less of the creamy sweetness and more of the raw timber note — closer to the smell of dry heat on old wood than the incense-church association of Indian sandalwood.
Australian sandalwood is grown under strict sustainable harvesting regulations in Western Australia, where it's a significant commercial crop. The industry is tightly controlled — look for certified-origin sourcing when buying Australian sandalwood products.
Fragrance notes: dry wood, warm earth, subtle spice, slightly smoky base. Pairs with: buddha wood, lemon myrtle, eucalyptus.Buddha Wood
Eremophila mitchellii — inland Queensland and NSWBuddha wood (also called false sandalwood) is one of Australia's most distinctive and least-known essential oils internationally. Derived from the heartwood of a small inland tree, it has a deep, smoky, almost leather-like character — dark and complex in a way that very few natural oils can achieve.
It's used primarily as a base note in fragrance blending, where its staying power and depth anchor lighter top notes. A diffuser blend with buddha wood underneath eucalyptus and lemon myrtle creates a sophisticated, layered result that evolves over time as the top notes dissipate.
Fragrance notes: deep smoke, dry leather, dark wood, incense. Pairs with: sandalwood, eucalyptus, any citrus-forward oil.Rosalina
Melaleuca ericifolia — coastal NSW and VictoriaRosalina is sometimes called "lavender tea tree" — and the name is apt. It has the floral softness of lavender combined with the mild antiseptic quality of tea tree, but without the harsh medicinal edge of either. It's a gentler, more approachable oil than most of the Australian natives, which makes it a useful bridge in blends between harder woody notes and more delicate florals.
It's native to the coastal wetlands of southeastern Australia and is largely unknown outside the aromatherapy world, despite being one of the more pleasant Australian oils to live with daily.
Fragrance notes: floral, soft herbal, light medicinal, gently sweet. Pairs with: lemon myrtle, eucalyptus radiata, cedarwood.Blending Australian oils for home fragrance.
Australian native oils tend to work well together because they share a common character — dry, clean, botanical rather than floral or gourmand. A few principles for blending them:
- Use eucalyptus as a top or mid note — it's the most volatile of the Australian oils and gives the immediate impression, but fades fastest
- Lemon myrtle as a bridge — its citral content connects the clean eucalyptus notes to warmer base notes without clashing
- Anchor with sandalwood or buddha wood — these are base notes with excellent longevity that keep the blend grounded as the lighter compounds evaporate
- Don't over-complicate — three to four oils is generally the ceiling for a coherent blend. More than that and the character becomes muddled
This is the logic behind the three Bushborn scent profiles — each is built around a different Australian native combination, with the Fresh profile leaning on eucalyptus and lemon myrtle, the Bush profile on sandalwood and buddha wood, and the Sweet profile using lemon myrtle as its character note with a soft base.
Three scent profiles built entirely from Australian native essential oils. Hand-turned eucalyptus timber base. 150ml included. Made in Brisbane.
Shop the Collection →A note on quality and sourcing.
Essential oil quality varies enormously and the industry has limited regulation. A few things to look for when buying Australian native oils or products made with them:
- Species name should be listed, not just the common name — "eucalyptus oil" without a species is a red flag
- Country and region of origin matters — Australian sandalwood and Indian sandalwood are different products with different characters and sustainability profiles
- GC/MS testing (gas chromatography) is the industry standard for verifying oil purity and compound profile — better suppliers make this available
- "Pure" and "natural" are unregulated terms — they mean nothing without third-party verification
The oils in Bushborn diffusers are sourced from Australian suppliers with documented origin and purity. The timber comes from reclaimed Brisbane eucalyptus. The two things — the vessel and the fragrance — come from the same place.