Macadamia nut (Macadamia tetraphylla)
Care, watering, light and tips for Macadamia nut on Floravia.
Quick facts
- Family: Proteaceae
- Difficulty: Demanding
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Macadamia nut
Macadamia tetraphylla, also known as Queensland Nut, is an evergreen tree native to Australia that produces the delicious macadamia nuts. It is characterized by its dense, glossy foliage and elongated creamy-white flowers. It is ideal as an ornamental tree in large gardens or as part of a Mediterranean orchard, adding an exotic and productive touch.
Native range
Australia (New South Wales and Queensland)
Care tips
It requires full sun for good flowering and fruiting, although it tolerates some partial shade in very hot climates. Watering should be regular, keeping the soil moist but not waterlogged, especially during dry periods and fruit development. It needs well-drained soil, slightly acidic to neutral, rich in organic matter. A common mistake is iron deficiency in alkaline soils, which can cause chlorosis; ensure proper soil pH and fertilize with iron chelate if necessary.
How to save a dying Macadamia nut
- Warning signs
- Mass leaf drop, widespread yellowing, dark spots on leaves or trunk. Macadamia is sensitive to salinity and cold.
- First aid
- Check drainage and soil salinity. If deficiency symptoms, add micronutrients. Protect from frost.
- What kills it
- Waterlogging and heavy soils that suffocate roots. Also, lack of frost protection.
- Can it be saved?
- Yes, if you act quickly. Good drainage and winter protection are key for its recovery and development.