Macadamia tree

Also known as: Macadamia nut, Queensland nut, Bush nut

Macadamia integrifolia is a medium-sized evergreen tree with a dense crown. It features glossy, dark green, leathery leaves arranged in whorls. In spring, pendulous racemes of small creamy-white to pinkish flowers appear. The tree produces round, hard-shelled nuts in clusters, which are highly valued for their rich, buttery flavor. Its ornamental value lies in the attractive foliage and edible nuts.

Scientific classification

Species: Macadamia tree (Macadamia integrifolia)
Genus: Information to be completed
Family: Proteaceae

Non-toxic to humans and pets; the nuts are edible but raw nuts contain glycosides that may cause mild digestive upset if consumed in large quantities.
Toxicity: Tree · Fruit Edible
Plant type: 6 - 12 metres
Height: 4 - 8 metres
Spread: Evergreen
Foliage: Upright
Habit: Spring · Summer · Autumn
Season of interest: Full sun
Sunlight: Information to be completed
Ideal temperature

Macadamia tree pictures

Distribution of Macadamia tree

Distribution map

Coastal rainforests of southern Queensland and northern New South Wales, Australia

Information to be completed

Culture

Information to be completed

Toxicity

Non-toxic to humans and pets; the nuts are edible but raw nuts contain glycosides that may cause mild digestive upset if consumed in large quantities.

Quick identification of Macadamia tree

Information to be completed

Macadamia tree care guide

Water deeply when top 5 cm of soil feels dry; reduce in winter
Watering: Full sun
Sunlight: Information to be completed
Ideal temperature

Watering

Water deeply when top 5 cm of soil feels dry; reduce in winter

Fertilizing

Every 4-6 weeks during growing season

Pruning

Prune in late winter to remove dead or crossing branches and shape the canopy. Light pruning after harvest can encourage next year's fruiting wood.

Propagation

Propagate by fresh seed (nuts) sown in deep pots in spring at 20-25°C. Germination takes 4-8 weeks. For true-to-type plants, use side-veneer grafting onto seedling rootstocks in late winter.

Growing

Plant in a warm, sheltered position in deep, fertile, slightly acidic soil with excellent drainage. Water regularly during the first two years to establish a strong root system, then reduce frequency as the tree matures. Apply a balanced fertilizer in spring and summer, avoiding high-nitrogen formulas. Protect from frost and strong winds; in cooler climates, grow in a large container and overwinter indoors or in a greenhouse.

More growing and care information →