Macadamia
Macadamia integrifolia
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Description
Macadamia integrifolia, known as the macadamia nut, is a medium-sized evergreen tree native to the coastal rainforests of Queensland, Australia. In agroecology and regenerative agriculture, macadamia trees serve as a canopy layer in food forests, providing shade and habitat for understory plants and wildlife. Their dense leaf litter contributes to soil fertility and moisture retention. Macadamias are often integrated into guilds with nitrogen-fixing plants like Acacia species and other subtropical fruit trees such as mangoes and avocados. Historically, Indigenous Australians consumed macadamia nuts as a staple food. The tree is valued for its resilience in warm climates and its ability to enhance biodiversity in agroforestry systems.
Growing Details
Macadamia trees thrive in well-drained, fertile soils with a slightly acidic to neutral pH (5.5-6.5). Before planting, enrich the soil with organic matter such as compost or well-rotted manure. Mulch with organic materials like wood chips or straw to retain moisture and suppress weeds. Companion plants like comfrey can improve soil health and attract beneficial insects. Avoid waterlogging, which can lead to root rot. Harvest nuts when they fall naturally, and dry them in a well-ventilated area b
Tags
Carbon Farming
Attracts Wildlife
Windbreak
Erosion Preventing
Bee Friendly
Visual Appeal
High Protein
Oil
Range (Based on GBIF Data)
The map shows known occurrence points of <strong>Macadamia integrifolia</strong> recorded in scientific biodiversity databases.
Source: <a href="https://www.gbif.org" target="_blank">GBIF.org</a> โ Global Biodiversity Information Facility
Location & Timing
native geo location: Native to coastal rainforests of Queensland,
applicable geo region: Australia
language used: en
Flowering:
beginning
of September for 30 days
Harvest:
beginning
of March for 90 days
Seed Start:
?
Indoor Start:
Transplant:
Uses & Benefits
Edible Rating:
(5/5)
edible uses: The nuts of Macadamia integrifolia are edible and highly prized for their rich, buttery flavor and high oil content. They can be eaten raw, roasted, or used in cooking and baking. Macadamia oil, extracted from the nuts, is used in culinary applications and is rich in monounsaturated fats, which are beneficial for heart health. The nuts are typically harvested in late autumn to early winter when they naturally fall from the tree.
Medicinal Rating:
(2/5)
medicinal uses: Macadamia nuts are a source of healthy fats, including monounsaturated fats, which support cardiovascular health. They contain antioxidants and essential nutrients such as vitamin E, magnesium, and thiamine. Consumption should be moderate due to their high caloric content.
health concerns: Macadamia nuts are toxic to dogs, causing symptoms like weakness and vomiting. Humans should consume them in moderation due to their high-fat content, which can contribute to weight gain if eaten excessively.
other uses: Macadamia shells are used as mulch, providing weed suppression and moisture retention. They can also be utilized as a biomass fuel source. The oil is popular in cosmetics and skincare products for its moisturizing properties.
Scientific Literature
Loading scientific articles about <strong>Macadamia integrifolia</strong>...
Botanical data
specie: Macadamia integrifolia
common names: Macadamia nut; Queensland nut; Smooth-shell
family: Proteaceae
sub family:
tribe:
sub tribe:
genus: Macadamia
Growing Conditions
area needed: 10.0 m
spacing: 7.0 m
growing difficulty: High
Deciduous / Evergreen:
Seed Temp (Opt/Min/Max): 25ยฐC / 20ยฐC / 30ยฐC
Plant Temp (Opt/Min/Max): 25ยฐC / 15ยฐC / 30ยฐC
water demands: High
humidity:
light demands: High
root type: Deep
frost tender: High
hardness:
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(10/10)
first harvest: 7 years
life span: 50 years
succession: Late
growth rate: Slow
max height: 20.0 m
max width: 10.0 m
soil preference:
Medium (Loam)
pH preference:
Neutral
flower type:
Hermaphrodite
growth details: Macadamia trees thrive in well-drained, fertile soils with a slightly acidic to neutral pH (5.5-6.5). Before planting, enrich the soil with organic matter such as compost or well-rotted manure. Mulch with organic materials like wood chips or straw to retain moisture and suppress weeds. Companion plants like comfrey can improve soil health and attract beneficial insects. Avoid waterlogging, which can lead to root rot. Harvest nuts when they fall naturally, and dry them in a well-ventilated area b
Potential Disturbances: Natural pest management includes introducing beneficial insects such as parasitic wasps to control macadamia nut borer and lacewings for aphid control. Planting marigolds can help repel nematodes. Neem oil and garlic sprays are effective organic treatments for fungal diseases and insect pests.
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