Hortiforum

General Info – Macadamia, Queensland Nut, Bush Nut, Hawaii Nut, Maroochi Nut

Renowned globally for its rich, buttery nut flavour, the Macadamia stands as one of Australia’s most celebrated bushfoods, now cultivated across the globe from Hawaii to South Africa.
Macadamias prove to be an exceptional addition to any backyard, as they are relatively low-maintenance and resilient, offering a source of otherwise costly nuts. The green-skinned nuts when ripe commence drying with the outer skin darkening and splitting, exposing the sturdy brown shell within. Upon cracking, these shells reveal a pale yellow-white edible kernel boasting a creamy texture and an iconic nutty flavour that is intensified when roasted. Macadamias are commonly enjoyed as dessert nuts, whether roasted and salted or coated in chocolate or caramel. Additionally, they lend themselves well to inclusion in slices, ice cream, and cakes. Nutritionally, Macadamias are abundant in monounsaturated fatty acids and serve as a good source of Magnesium, Thiamine, and Manganese.
Thriving in warm temperate, subtropical, and cool tropical climates, Macadamias struggle in ultratropical climates or cooler temperate regions prone to frost. Originating from the rainforests of Northern NSW and Southern Queensland, Macadamias flourish in well-drained, slightly acidic soils with consistent watering to ensure optimal growth and yield. Provide trees with full sun exposure and a position sheltered from strong winds. Macadamia trees will tolerate a light frost, especially once established, but it may damage young growth and diminish flowering. For those residing in temperate regions, experimenting with cold-resistant varieties like the A4 can yield successful results.
These trees also contribute ornamental value to gardens, evolving into striking, large evergreens that provide ample shade. During the flowering season, Macadamias adorn themselves with cascades of elegant white-pink blooms, creating a breathtaking spectacle. The dense, crinkled evergreen foliage undergoes a stunning transformation, starting as a striking maroon with new growth and transitioning into a glossy, deep green hue. Forms and appearances vary among cultivars, with numerous ones specifically bred for their captivating pink blossoms. Macadamias are propagated through seeds, cuttings, or even grafting techniques. Sizes span from dwarf varieties, measuring below 3 metres, to large seedlings that can surpass 10 metres in height.
With its ornamental allure, productivity, resilience, and native status, the Macadamia proves itself to be a versatile addition to any garden, earning a well-deserved place in every backyard.

Plant Profile/Properties