Narrow-leaved Australian melaleuca of coastal NSW wallum heath. Steam-distilled essential oil is a widely studied antimicrobial, dominated by terpinen-4-ol.
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 8–11 | −12.2 °C to 10 °C | Plant tolerates down to this zone |
| RHS hardiness rating | H4 | −10 °C to −5 °C | Plant needs at least this level of cold tolerance |
| Canadian plant hardiness zone | Zone 8–9 | −7 °C and warmer | Plant tolerates down to this zone |
| Australian (ANBG) zone | Zone 4–7 | 0 °C and warmer | Plant tolerates down to this zone |
Growing notes
- Toxic if ingested — all medicinal use is topical
- Severe skin reactions reported in pets, especially cats — keep undiluted oil away from animals
- Always consult a qualified medical or herbal practitioner before using any plant medicinally
Categories
Related plants
Cross-check Tea tree against your zones