Macadamia tetraphylla, commonly known as Macadamia Nut, is an evergreen tree native to rainforests and wet sclerophyll forests in southern Queensland and northern New South Wales, Australia. This species can reach up to 18 meters in height and is characterized by its dense, dark green foliage. The leaves are arranged in whorls of four, hence the name ’tetraphylla.’ It produces long, pendant flower spikes with white to creamy pink flowers that are subtly fragrant, blooming from late winter to spring. The flowers are followed by woody, rounded fruits, 2 to 3 cm in diameter, containing the commercially valuable edible seeds or nuts. The nuts are encased in a hard, green-brown shell that splits open as they mature.

Macadamia Nut trees are valued for their nuts, which are a popular food item due to their rich flavor and nutritional benefits. They are also cultivated for their ornamental qualities and are used in large gardens and parks. The tree requires well-drained soils, consistent moisture without waterlogging, and a position in full sun to partial shade. While they are relatively low-maintenance once established, they can be susceptible to root rot in poorly drained soils and may attract pests such as macadamia nut borers. It is important to note that the leaves and flowers contain toxic cyanogenic glycosides and should not be ingested by humans or animals.CC BY-SA 4.0