Subtropical Australian native rainforest tree producing the familiar macadamia nut. Slow to mature but extremely long-lived.
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 9–11 | −6.7 °C to 10 °C | Plant tolerates down to this zone |
| RHS hardiness rating | H3 | −5 °C to 1 °C | Plant needs at least this level of cold tolerance |
| Canadian plant hardiness zone | Zone 9 | −1 °C and warmer | Plant tolerates down to this zone |
| Australian (ANBG) zone | Zone 5–7 | 5 °C and warmer | Plant tolerates down to this zone |
Growing notes
- First nut crop typically 5–7 years from planting; full production at 12–15 years
- Thrives in subtropical eastern Australia — its native habitat — and in similar Hawaiian and Californian climates
Pet caution: Macadamia is listed as potentially harmful to cats and/or dogs. Keep pets from grazing on it, and contact a vet if you suspect your animal has eaten some.
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Related plants
Cross-check Macadamia against your zones