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Macadamia

Macadamia integrifolia

Also known as Macadamia Nut, Queensland Nut, Macadamia Tree

tree☀️ full sun💧💧 moderate water❄ Hardy: Zone 9a – Zone 11a

Climate Match for your location

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The Macadamia integrifolia is a tropical to subtropical tree prized for its large, buttery nuts and attractive evergreen foliage. It grows slowly but steadily to form a substantial shade tree, making it a valuable permaculture crop in warm climates.

Why grow it

Macadamia integrifolia produces nuts with higher oil content and softer shells than M. tetraphylla, making them easier to process for home growers. The tree's dense evergreen canopy provides reliable year-round shade and windbreak function in tropical to subtropical zones (USDA 10b+), while establishing a productive perennial food source within 5-7 years of planting.

Watch out for

Macadamia trees require well-draining soil and are sensitive to waterlogging, which can lead to root rot in poorly drained sites. They need several years of establishment before producing significant yields, so patience is essential in permaculture systems. Wind can damage the brittle branches and reduce nut production, so shelter or site selection matters in exposed locations. Macadamia nuts are toxic to dogs.

Overview

Form
Rounded
Growth Rate
slow
Size
25–40′ tall × 25–40′ wide
Dormancy
evergreen
Family
Proteaceae
Edible

Native Range

Eastern Australia

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Harvest Season

J
F
M
A
M
J
J
A
S
O
N
D

Edible Parts

nut

Season of Interest

FallWinterSpring

Notable Cultivars

Cultivars like 'Beaumont' and 'Kakea' are selected for larger nuts, higher oil content, and improved cracking ease. 'Keauhou' is known for excellent flavor and reliable production in commercial settings.

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Companion Planting

Plants well with